TY  - CHAP
AU  - Dimitrijević, Silvana B.
AU  - Dimitrijević, Stevan P.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6651
AB  - The importance of recycling the waste electrical and electronic equipment (WEEE), in recent years, has been taken into increasing concern and consideration not only by the government, but also by their hazardous material contents. Electronic waste can be defined as a mixture of various metals, particularly copper, aluminum and steel, with various types of plastics and ceramics. Recycling of electronic waste is an important subject not only from the point of waste treatment, but also from the recovery aspect of valuable materials. Pyrometallurgical processing has been a traditional technology for recovery of the precious metals from waste electronic equipment. In the past two decades, the most active research area on recovery of metals from electronic scraps is recovering the precious metals using the hydrometallurgical techniques. Compared with the pyrometallurgical processing, the hydrometallurgical method is more exact, more predictable and more easily controlled. In the last decade, the recovery of metals by biotechnology has been one of the most promising technologies. Biometallurgy has the potential for a major technology breakthrough for the materials and minerals industry due to a great interest shown by the major international companies for this new technology. Understanding the biochemical processes, involved in treatments of metals, has been the subject to growing investigations for the last 20 years. At present, the research and development are in progress for a number of metals such as copper, nickel, cobalt, zinc, gold and silver. However, the activity of leaching bacteria is applied for recovery of gold and silver only to remove the interfering metal sulfides from ore bearing the precious metals prior to the cyanidation treatment. Recent research trend is to use the combined methods for optimal results.
PB  - De Gruyter
T2  - Advanced Ceramics and Applications
T1  - E-scrap processing: Theory and practice
EP  - 262
SP  - 237
DO  - 10.1515/9783110627992-017
ER  - 

@inbook{
author = "Dimitrijević, Silvana B. and Dimitrijević, Stevan P.",
year = "2021",
abstract = "The importance of recycling the waste electrical and electronic equipment (WEEE), in recent years, has been taken into increasing concern and consideration not only by the government, but also by their hazardous material contents. Electronic waste can be defined as a mixture of various metals, particularly copper, aluminum and steel, with various types of plastics and ceramics. Recycling of electronic waste is an important subject not only from the point of waste treatment, but also from the recovery aspect of valuable materials. Pyrometallurgical processing has been a traditional technology for recovery of the precious metals from waste electronic equipment. In the past two decades, the most active research area on recovery of metals from electronic scraps is recovering the precious metals using the hydrometallurgical techniques. Compared with the pyrometallurgical processing, the hydrometallurgical method is more exact, more predictable and more easily controlled. In the last decade, the recovery of metals by biotechnology has been one of the most promising technologies. Biometallurgy has the potential for a major technology breakthrough for the materials and minerals industry due to a great interest shown by the major international companies for this new technology. Understanding the biochemical processes, involved in treatments of metals, has been the subject to growing investigations for the last 20 years. At present, the research and development are in progress for a number of metals such as copper, nickel, cobalt, zinc, gold and silver. However, the activity of leaching bacteria is applied for recovery of gold and silver only to remove the interfering metal sulfides from ore bearing the precious metals prior to the cyanidation treatment. Recent research trend is to use the combined methods for optimal results.",
publisher = "De Gruyter",
journal = "Advanced Ceramics and Applications",
booktitle = "E-scrap processing: Theory and practice",
pages = "262-237",
doi = "10.1515/9783110627992-017"
}

Dimitrijević, S. B.,& Dimitrijević, S. P.. (2021). E-scrap processing: Theory and practice. in Advanced Ceramics and Applications
De Gruyter., 237-262.
https://doi.org/10.1515/9783110627992-017

Dimitrijević SB, Dimitrijević SP. E-scrap processing: Theory and practice. in Advanced Ceramics and Applications. 2021;:237-262.
doi:10.1515/9783110627992-017 .

Dimitrijević, Silvana B., Dimitrijević, Stevan P., "E-scrap processing: Theory and practice" in Advanced Ceramics and Applications (2021):237-262,
https://doi.org/10.1515/9783110627992-017 . .

TY  - JOUR
AU  - Karić, Nataša
AU  - Rusmirović, Jelena
AU  - Đolić, Maja
AU  - Kovačević, Tihomir
AU  - Pecić, Ljiljana
AU  - Radovanović, Željko
AU  - Marinković, Aleksandar
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4487
AB  - Oxidized starch, an additive used in paper manufacturing and products for construction industry, is usually produced using harmful oxidant, such as hypochlorites or periodates. In this study, a simple and efficient eco-friendly laboratory and industrial procedures for starch oxidation were developed. The procedure involves application of small amounts of more environmentally friendly oxidant, hydrogen peroxide, a novel special metal complex catalyst such as copper(II) citrate and copper(II) ricinoleate and biobased plasticizers. Optimization procedure, with respect to the quantity of hydrogen peroxide and temperature in the presence of iron(II) sulphate catalyst, was performed by using the response surface methodology. Comparative analysis of the use of the other catalysts that is copper(II) sulphate, copper(II) citrate and copper(II) ricinoleate, indicated copper(II) citrate as the catalyst of choice. Improvement of starch is achieved using three plasticizers: ricinoleic acid (RA), diisopropyl tartarate, as well as epoxidized soybean, linseed and sunflower oils. The effects of hydrogen peroxide and catalyst concentrations, as well as the reaction temperature in the presence of naturally based plasticizers on the physicochemical, thermal and morphological properties of oxidized starch are presented. According to the results obtained in initial experiments, the optimal industrial process is based on the use of copper(II) citrate (0.1 %) as a catalyst and RA (3 %) as a plasticizer.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Preparation and properties of hydrogen peroxide oxidized starch for industrial use
EP  - 36
IS  - 1
SP  - 25
VL  - 74
DO  - 10.2298/HEMIND190722004K
ER  - 

@article{
author = "Karić, Nataša and Rusmirović, Jelena and Đolić, Maja and Kovačević, Tihomir and Pecić, Ljiljana and Radovanović, Željko and Marinković, Aleksandar",
year = "2020",
abstract = "Oxidized starch, an additive used in paper manufacturing and products for construction industry, is usually produced using harmful oxidant, such as hypochlorites or periodates. In this study, a simple and efficient eco-friendly laboratory and industrial procedures for starch oxidation were developed. The procedure involves application of small amounts of more environmentally friendly oxidant, hydrogen peroxide, a novel special metal complex catalyst such as copper(II) citrate and copper(II) ricinoleate and biobased plasticizers. Optimization procedure, with respect to the quantity of hydrogen peroxide and temperature in the presence of iron(II) sulphate catalyst, was performed by using the response surface methodology. Comparative analysis of the use of the other catalysts that is copper(II) sulphate, copper(II) citrate and copper(II) ricinoleate, indicated copper(II) citrate as the catalyst of choice. Improvement of starch is achieved using three plasticizers: ricinoleic acid (RA), diisopropyl tartarate, as well as epoxidized soybean, linseed and sunflower oils. The effects of hydrogen peroxide and catalyst concentrations, as well as the reaction temperature in the presence of naturally based plasticizers on the physicochemical, thermal and morphological properties of oxidized starch are presented. According to the results obtained in initial experiments, the optimal industrial process is based on the use of copper(II) citrate (0.1 %) as a catalyst and RA (3 %) as a plasticizer.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Preparation and properties of hydrogen peroxide oxidized starch for industrial use",
pages = "36-25",
number = "1",
volume = "74",
doi = "10.2298/HEMIND190722004K"
}

Karić, N., Rusmirović, J., Đolić, M., Kovačević, T., Pecić, L., Radovanović, Ž.,& Marinković, A.. (2020). Preparation and properties of hydrogen peroxide oxidized starch for industrial use. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 74(1), 25-36.
https://doi.org/10.2298/HEMIND190722004K

Karić N, Rusmirović J, Đolić M, Kovačević T, Pecić L, Radovanović Ž, Marinković A. Preparation and properties of hydrogen peroxide oxidized starch for industrial use. in Hemijska industrija. 2020;74(1):25-36.
doi:10.2298/HEMIND190722004K .

Karić, Nataša, Rusmirović, Jelena, Đolić, Maja, Kovačević, Tihomir, Pecić, Ljiljana, Radovanović, Željko, Marinković, Aleksandar, "Preparation and properties of hydrogen peroxide oxidized starch for industrial use" in Hemijska industrija, 74, no. 1 (2020):25-36,
https://doi.org/10.2298/HEMIND190722004K . .

TY  - JOUR
AU  - Korać, Marija
AU  - Kamberović, Željko
AU  - Anđić, Zoran
AU  - Stopić, Srećko
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4518
AB  - This paper presents thermochemical synthesis of copper/alumina nanocomposites in a Cu-Al(2)O(3)system with 1-2.5 wt.% of alumina and their characterization, which included: transmission electron microscopy: focused ion beam (FIB), analytical electron microscopy (AEM) and high resolution transmission electron microscopy (HRTEM). Thermodynamic analysis was used to study the formation mechanism of desirable products during drying, thermal decomposition and reduction processes. Upon synthesis of powders, samples were cold pressed (2 GPa) in tools dimension 8 x 32 x 2 mm and sintered at temperatures within the range 800-1000 degrees C for 15 to 120 min in a hydrogen atmosphere. Results of characterization showed that dispersion-strengthened compacts could be produced by sintering of thermo-chemically prepared Cu-Al(2)O(3)powders with properties suitable for material application, such as a contact material exhibiting high strength and high electrical conductivity at the same time. Additional research was carried out in order to analyze the application of the obtained nanocomposite powders for the synthesis of copper/alumina nanocomposites by a new method, which is a combination of a thermochemical procedure and mechanical alloying. The measured values of an electric conductivity and hardness were compared with ones in literature, confirming an advantage of the proposed combined strategy.
PB  - MDPI, Basel
T2  - Metals
T1  - Advances in Thermochemical Synthesis and Characterization of the Prepared Copper/Alumina Nanocomposites
IS  - 6
VL  - 10
DO  - 10.3390/met10060719
ER  - 

@article{
author = "Korać, Marija and Kamberović, Željko and Anđić, Zoran and Stopić, Srećko",
year = "2020",
abstract = "This paper presents thermochemical synthesis of copper/alumina nanocomposites in a Cu-Al(2)O(3)system with 1-2.5 wt.% of alumina and their characterization, which included: transmission electron microscopy: focused ion beam (FIB), analytical electron microscopy (AEM) and high resolution transmission electron microscopy (HRTEM). Thermodynamic analysis was used to study the formation mechanism of desirable products during drying, thermal decomposition and reduction processes. Upon synthesis of powders, samples were cold pressed (2 GPa) in tools dimension 8 x 32 x 2 mm and sintered at temperatures within the range 800-1000 degrees C for 15 to 120 min in a hydrogen atmosphere. Results of characterization showed that dispersion-strengthened compacts could be produced by sintering of thermo-chemically prepared Cu-Al(2)O(3)powders with properties suitable for material application, such as a contact material exhibiting high strength and high electrical conductivity at the same time. Additional research was carried out in order to analyze the application of the obtained nanocomposite powders for the synthesis of copper/alumina nanocomposites by a new method, which is a combination of a thermochemical procedure and mechanical alloying. The measured values of an electric conductivity and hardness were compared with ones in literature, confirming an advantage of the proposed combined strategy.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Advances in Thermochemical Synthesis and Characterization of the Prepared Copper/Alumina Nanocomposites",
number = "6",
volume = "10",
doi = "10.3390/met10060719"
}

Korać, M., Kamberović, Ž., Anđić, Z.,& Stopić, S.. (2020). Advances in Thermochemical Synthesis and Characterization of the Prepared Copper/Alumina Nanocomposites. in Metals
MDPI, Basel., 10(6).
https://doi.org/10.3390/met10060719

Korać M, Kamberović Ž, Anđić Z, Stopić S. Advances in Thermochemical Synthesis and Characterization of the Prepared Copper/Alumina Nanocomposites. in Metals. 2020;10(6).
doi:10.3390/met10060719 .

Korać, Marija, Kamberović, Željko, Anđić, Zoran, Stopić, Srećko, "Advances in Thermochemical Synthesis and Characterization of the Prepared Copper/Alumina Nanocomposites" in Metals, 10, no. 6 (2020),
https://doi.org/10.3390/met10060719 . .

TY  - THES
AU  - Gajić, Nataša
PY  - 2020
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=7606
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:22555/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=20898057
UR  - http://nardus.mpn.gov.rs/handle/123456789/17464
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4688
AB  - This PhD thesis presents the process of synthesis of tin and tungsten sulfides powders for application in tribological materials by determining the optimal parameters of the synthesis process based on the results of the thermodynamic modeling. The thermodynamic modeling of the synthesis process was determined using HSC Chemistry® software modelling package, version 9.9.2.3. The thermodynamic modeling was applied in order to obtain an improved method of tin and tungsten sulfides synthesis with a technologically optimal number of operations, which contributes to the simplification of the process and energy savings. Further optimization of the synthesis process was done by varying quantity and composition of the starting materials for synthesis, as well as the basic process parameters (temperature, duration of the process of synthesis). The selection of adequate additives for process efficiency increase was also investigated. In addition, the synthesis process of tin sulfides was also characterized by the thermal analysis method, simultaneous differential scanning calorimetry and thermogravimetry (DSC-TGA). As a part of this doctoral dissertation, the synthesis of oxide precursor for tungsten sulfide synthesis was carried out by using the ultrasonic spray pyrolisis method. After the synthesis process, the characterization of powders with different instrumental methods was performed. The characterization of the synthesized powders included analysis of chemical composition by inductively coupled plasma optical emission spectroscopy (ICP - OES), phase composition identification and degree of crystallinity were analysed by X-ray diffraction (XRD) by employing the Rietveld method with the help of PowderCell Software and the RIFRANE® program and examination of morphology, as well as elemental composition by scanning electron microscopy with energy-dispersive spectroscopy (SEM - EDS). This PhD thesis is part of the technological development project funded by the Ministry of Education, Science and Technological Development of the Republic of Serbia, No. 34033 ”Innovative synergy of by-products, waste minimization and clean technologies in metallurgy” (2011-in progress).
AB  - U doktorskoj disertaciji su prikazani postupci sinteze prahova sulfida kalaja i volframa za primenu u tribološkim materijalima određivanjem optimalnih parametara procesa sinteze na osnovu rezultata termodinamičkog modelovanja primenom softverskog paketa HSC Chemistry® verzija 9.9.2.3. Upotreba termodinamičkog predviđanja u optimizaciji procesa sinteze je primenjena u cilju dobijanja unapređenog načina sinteze sulfida kalaja i volframa sa tehnološki optimalnim brojem operacija, što doprinosi pojednostavljenju postupka i uštedi energije. Proces sinteze je dodatno optimizovan variranjem količine i sastava polaznih materijala, kao i osnovnih procesnih parametara (temperatura i trajanje procesa sinteze). Takođe je izvršen odabir adekvatnog aditiva radi povećanja efikasnosti procesa sinteze, čiji je pozitivan uticaj potvrđen eksperimentalnim rezultatima. Pored toga, proces sinteze sufida kalaja je okarakterisan metodom termičke analize, simultanom diferencijalnom skenirajućom kalorimetrijom i termogravimetrijskom analizom (DSC – TGA). U okviru doktorske disertacije za potrebe sinteze sulfida volframa izvršena je i sinteza oksidnog prekursora metodom ultrazvučnog sprej raspršivanja. Nakon procesa sinteze izvršena je karakterizacija sintetisanih prahova različitim instrumentalnim metodama. Karakterizacija sintetisanih prahova je obuhvatila analizu hemijskog sastava optičkom emisionom spektroskopijom sa indukovano spregnutom plazmom (ICP - OES), određivanje faznog sastava i stepena kristalizacije rendgenskom difrakcionom analizom (XRD) sa Rietveldovom metodom pomoću Powder Cell i RIFRANE® programa, ispitivanje morfologije kao i elementalnog sastava skenirajućom elektronskom mikroskopijom sa energodisperzionom analizom (SEM - EDS). Ova doktorska disertacija je urađena u okviru realizacije projekta tehnološkog razvoja koje je finansiralo Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, evidencioni broj 34033 ”Inovativna sinergija nus-produkata, minimizacije otpada i čistije proizvodnje u metalurgiji” (2011-u toku).
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Synthesis and characterisation of tin and tungsten sulfide powders for application in tribological materials
T1  - Sinteza i karakterizacija prahova sulfida kalaja i volframa za primenu u tribološkim materijalima
UR  - https://hdl.handle.net/21.15107/rcub_nardus_17464
ER  - 

@phdthesis{
author = "Gajić, Nataša",
year = "2020",
abstract = "This PhD thesis presents the process of synthesis of tin and tungsten sulfides powders for application in tribological materials by determining the optimal parameters of the synthesis process based on the results of the thermodynamic modeling. The thermodynamic modeling of the synthesis process was determined using HSC Chemistry® software modelling package, version 9.9.2.3. The thermodynamic modeling was applied in order to obtain an improved method of tin and tungsten sulfides synthesis with a technologically optimal number of operations, which contributes to the simplification of the process and energy savings. Further optimization of the synthesis process was done by varying quantity and composition of the starting materials for synthesis, as well as the basic process parameters (temperature, duration of the process of synthesis). The selection of adequate additives for process efficiency increase was also investigated. In addition, the synthesis process of tin sulfides was also characterized by the thermal analysis method, simultaneous differential scanning calorimetry and thermogravimetry (DSC-TGA). As a part of this doctoral dissertation, the synthesis of oxide precursor for tungsten sulfide synthesis was carried out by using the ultrasonic spray pyrolisis method. After the synthesis process, the characterization of powders with different instrumental methods was performed. The characterization of the synthesized powders included analysis of chemical composition by inductively coupled plasma optical emission spectroscopy (ICP - OES), phase composition identification and degree of crystallinity were analysed by X-ray diffraction (XRD) by employing the Rietveld method with the help of PowderCell Software and the RIFRANE® program and examination of morphology, as well as elemental composition by scanning electron microscopy with energy-dispersive spectroscopy (SEM - EDS). This PhD thesis is part of the technological development project funded by the Ministry of Education, Science and Technological Development of the Republic of Serbia, No. 34033 ”Innovative synergy of by-products, waste minimization and clean technologies in metallurgy” (2011-in progress)., U doktorskoj disertaciji su prikazani postupci sinteze prahova sulfida kalaja i volframa za primenu u tribološkim materijalima određivanjem optimalnih parametara procesa sinteze na osnovu rezultata termodinamičkog modelovanja primenom softverskog paketa HSC Chemistry® verzija 9.9.2.3. Upotreba termodinamičkog predviđanja u optimizaciji procesa sinteze je primenjena u cilju dobijanja unapređenog načina sinteze sulfida kalaja i volframa sa tehnološki optimalnim brojem operacija, što doprinosi pojednostavljenju postupka i uštedi energije. Proces sinteze je dodatno optimizovan variranjem količine i sastava polaznih materijala, kao i osnovnih procesnih parametara (temperatura i trajanje procesa sinteze). Takođe je izvršen odabir adekvatnog aditiva radi povećanja efikasnosti procesa sinteze, čiji je pozitivan uticaj potvrđen eksperimentalnim rezultatima. Pored toga, proces sinteze sufida kalaja je okarakterisan metodom termičke analize, simultanom diferencijalnom skenirajućom kalorimetrijom i termogravimetrijskom analizom (DSC – TGA). U okviru doktorske disertacije za potrebe sinteze sulfida volframa izvršena je i sinteza oksidnog prekursora metodom ultrazvučnog sprej raspršivanja. Nakon procesa sinteze izvršena je karakterizacija sintetisanih prahova različitim instrumentalnim metodama. Karakterizacija sintetisanih prahova je obuhvatila analizu hemijskog sastava optičkom emisionom spektroskopijom sa indukovano spregnutom plazmom (ICP - OES), određivanje faznog sastava i stepena kristalizacije rendgenskom difrakcionom analizom (XRD) sa Rietveldovom metodom pomoću Powder Cell i RIFRANE® programa, ispitivanje morfologije kao i elementalnog sastava skenirajućom elektronskom mikroskopijom sa energodisperzionom analizom (SEM - EDS). Ova doktorska disertacija je urađena u okviru realizacije projekta tehnološkog razvoja koje je finansiralo Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, evidencioni broj 34033 ”Inovativna sinergija nus-produkata, minimizacije otpada i čistije proizvodnje u metalurgiji” (2011-u toku).",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Synthesis and characterisation of tin and tungsten sulfide powders for application in tribological materials, Sinteza i karakterizacija prahova sulfida kalaja i volframa za primenu u tribološkim materijalima",
url = "https://hdl.handle.net/21.15107/rcub_nardus_17464"
}

Gajić, N.. (2020). Synthesis and characterisation of tin and tungsten sulfide powders for application in tribological materials. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_17464

Gajić N. Synthesis and characterisation of tin and tungsten sulfide powders for application in tribological materials. 2020;.
https://hdl.handle.net/21.15107/rcub_nardus_17464 .

Gajić, Nataša, "Synthesis and characterisation of tin and tungsten sulfide powders for application in tribological materials" (2020),
https://hdl.handle.net/21.15107/rcub_nardus_17464 .

TY  - JOUR
AU  - Dimitrijević, Stevan
AU  - Vurdelja, Borislava D.
AU  - Dimitrijević, Silvana
AU  - Veljković, Filip M.
AU  - Kamberović, Željko
AU  - Veličković, Suzana
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4456
AB  - Corrosion products formed on the surface of two silver brazing alloys after the potentiostatic polarization in 3.5% sodium chloride solution were characterized by the standard methods such as, the X-ray diffraction, microRaman spectroscopy, and scanning electron microscopy with energy-dispersive spectroscopy. This paper presents the results of a laser desorption/ionization mass spectrometry (LDI MS) analysis as a new approach to the characterization of corrosion products. The potential of the anodic polarization was 0.5 V versus saturated calomel electrode, and the process duration was 300 s. The corrosion layers on both investigated alloys were similar in composition with cuprous chloride and silver chloride as the main components and had strong indications of cuprous oxide formation. The major difference between these two layers was the existence of zinc hydroxychioride as the corrosion product of Ag-Cu-Zn alloy. Palladium compounds were not found in the case of Ag-Cu-Pd alloy. The results of different methods have shown a good consistency. Complementarity between the used methods was useful in the interpretation of the results for each used method. This study has demonstrated that LDI MS can be used as an efficient additional method together with the traditional ones.
PB  - Walter de Gruyter Gmbh, Berlin
T2  - Corrosion Reviews
T1  - Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys
EP  - 125
IS  - 2
SP  - 111
VL  - 38
DO  - 10.1515/corrrev-2019-0067
ER  - 

@article{
author = "Dimitrijević, Stevan and Vurdelja, Borislava D. and Dimitrijević, Silvana and Veljković, Filip M. and Kamberović, Željko and Veličković, Suzana",
year = "2020",
abstract = "Corrosion products formed on the surface of two silver brazing alloys after the potentiostatic polarization in 3.5% sodium chloride solution were characterized by the standard methods such as, the X-ray diffraction, microRaman spectroscopy, and scanning electron microscopy with energy-dispersive spectroscopy. This paper presents the results of a laser desorption/ionization mass spectrometry (LDI MS) analysis as a new approach to the characterization of corrosion products. The potential of the anodic polarization was 0.5 V versus saturated calomel electrode, and the process duration was 300 s. The corrosion layers on both investigated alloys were similar in composition with cuprous chloride and silver chloride as the main components and had strong indications of cuprous oxide formation. The major difference between these two layers was the existence of zinc hydroxychioride as the corrosion product of Ag-Cu-Zn alloy. Palladium compounds were not found in the case of Ag-Cu-Pd alloy. The results of different methods have shown a good consistency. Complementarity between the used methods was useful in the interpretation of the results for each used method. This study has demonstrated that LDI MS can be used as an efficient additional method together with the traditional ones.",
publisher = "Walter de Gruyter Gmbh, Berlin",
journal = "Corrosion Reviews",
title = "Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys",
pages = "125-111",
number = "2",
volume = "38",
doi = "10.1515/corrrev-2019-0067"
}

Dimitrijević, S., Vurdelja, B. D., Dimitrijević, S., Veljković, F. M., Kamberović, Ž.,& Veličković, S.. (2020). Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys. in Corrosion Reviews
Walter de Gruyter Gmbh, Berlin., 38(2), 111-125.
https://doi.org/10.1515/corrrev-2019-0067

Dimitrijević S, Vurdelja BD, Dimitrijević S, Veljković FM, Kamberović Ž, Veličković S. Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys. in Corrosion Reviews. 2020;38(2):111-125.
doi:10.1515/corrrev-2019-0067 .

Dimitrijević, Stevan, Vurdelja, Borislava D., Dimitrijević, Silvana, Veljković, Filip M., Kamberović, Željko, Veličković, Suzana, "Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys" in Corrosion Reviews, 38, no. 2 (2020):111-125,
https://doi.org/10.1515/corrrev-2019-0067 . .

TY  - JOUR
AU  - Petronijević, Nela
AU  - Stanković, Srđan
AU  - Radovanović, Dragana
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Stopić, Srećko
AU  - Kamberović, Željko
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4485
AB  - Flotation tailings rich in carbonate minerals from the tailings deposit of the copper mine Majdanpek (Serbia) were applied for neutralization of the water taken from the extremely acidic Lake Robule (Bor, Serbia). Tests conducted in Erlenmeyer flasks showed that after neutralization of the lake water to pH 7, over 99% of aluminum (Al), iron (Fe), and copper (Cu) precipitated, as well as 92% of Zn and 98% of Pb. In order to remove residual Mn and Ag, the water was further treated with NaOH. After treatment with NaOH, all concentrations of the metals in the lake water samples were below discharge limits for municipal wastewater according to the national legislation of the Republic of Serbia. The results of this work suggest that mining waste could be used for active neutralization of the acid mine drainage. The use of the mining waste instead of lime could reduce the costs of the active treatment of the acid mine drainage.
PB  - MDPI, Basel
T2  - Metals
T1  - Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia)
IS  - 1
VL  - 10
DO  - 10.3390/met10010016
ER  - 

@article{
author = "Petronijević, Nela and Stanković, Srđan and Radovanović, Dragana and Sokić, Miroslav and Marković, Branislav and Stopić, Srećko and Kamberović, Željko",
year = "2020",
abstract = "Flotation tailings rich in carbonate minerals from the tailings deposit of the copper mine Majdanpek (Serbia) were applied for neutralization of the water taken from the extremely acidic Lake Robule (Bor, Serbia). Tests conducted in Erlenmeyer flasks showed that after neutralization of the lake water to pH 7, over 99% of aluminum (Al), iron (Fe), and copper (Cu) precipitated, as well as 92% of Zn and 98% of Pb. In order to remove residual Mn and Ag, the water was further treated with NaOH. After treatment with NaOH, all concentrations of the metals in the lake water samples were below discharge limits for municipal wastewater according to the national legislation of the Republic of Serbia. The results of this work suggest that mining waste could be used for active neutralization of the acid mine drainage. The use of the mining waste instead of lime could reduce the costs of the active treatment of the acid mine drainage.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia)",
number = "1",
volume = "10",
doi = "10.3390/met10010016"
}

Petronijević, N., Stanković, S., Radovanović, D., Sokić, M., Marković, B., Stopić, S.,& Kamberović, Ž.. (2020). Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia). in Metals
MDPI, Basel., 10(1).
https://doi.org/10.3390/met10010016

Petronijević N, Stanković S, Radovanović D, Sokić M, Marković B, Stopić S, Kamberović Ž. Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia). in Metals. 2020;10(1).
doi:10.3390/met10010016 .

Petronijević, Nela, Stanković, Srđan, Radovanović, Dragana, Sokić, Miroslav, Marković, Branislav, Stopić, Srećko, Kamberović, Željko, "Application of the Flotation Tailings as an Alternative Material for an Acid Mine Drainage Remediation: A Case Study of the Extremely Acidic Lake Robule (Serbia)" in Metals, 10, no. 1 (2020),
https://doi.org/10.3390/met10010016 . .

TY  - CONF
AU  - Karić, Nataša
AU  - Gržetić, Jelena
AU  - Kovačević, Tihomir
AU  - Marinković, Aleksandar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6121
AB  - The starch oxidation involves oxidation of primary or secondary hydroxyl to carbonyl
or carboxyl groups, whereas the number of these groups indicates the level of oxidation.
Oxidized starch is used as surface sizing agent and coating binder in the paper industry,
or as polymeric filler that increases the polymer degradability. The main objective of the
presented study is to investigate the effects of various parameters on the oxidation
process of the wheat starch, using dry method (Fig. 1). These parameters include
oxidizer concentration, catalyst type (iron(II) sulphate, copper(II) sulphate and
copper(II) citrate), presence of plasticizers/modifiers (ricinoleic acid, (R-(Z))-12-
hydroxy-9-octadecenoic acid, RA) and diizopropyl tartarate ((dipropan-2-yl 2,3-
dihydroxybutanedioate, DIPT) and reaction temperature (20 and 80 °C). The obtained
results suggest that higher values of carbonyl and carboxyl groups lead to an increase of
swelling capacity and solubility, while viscosity decreases, compared to the native wheat
starch. The analysis of FTIR spectra, especially region of carbonyl/carboxyl groups
absorption, reveals high impact of process parameters on the oxidation degree and band
structure. The morphology of native and oxidized starches, investigated by the SEM
method, shows that after oxidation the surface of the starch particles becomes smoother
then for the native starch, with aggregation of small and large-sized granules.
C3  - 7th Conference of the Young Chemists of Serbia
T1  - Preparation and characterization of oxidized wheat starch with hydrogen peroxide as an environmentally friendly oxidant
SP  - 144
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6121
ER  - 

@conference{
author = "Karić, Nataša and Gržetić, Jelena and Kovačević, Tihomir and Marinković, Aleksandar",
year = "2019",
abstract = "The starch oxidation involves oxidation of primary or secondary hydroxyl to carbonyl
or carboxyl groups, whereas the number of these groups indicates the level of oxidation.
Oxidized starch is used as surface sizing agent and coating binder in the paper industry,
or as polymeric filler that increases the polymer degradability. The main objective of the
presented study is to investigate the effects of various parameters on the oxidation
process of the wheat starch, using dry method (Fig. 1). These parameters include
oxidizer concentration, catalyst type (iron(II) sulphate, copper(II) sulphate and
copper(II) citrate), presence of plasticizers/modifiers (ricinoleic acid, (R-(Z))-12-
hydroxy-9-octadecenoic acid, RA) and diizopropyl tartarate ((dipropan-2-yl 2,3-
dihydroxybutanedioate, DIPT) and reaction temperature (20 and 80 °C). The obtained
results suggest that higher values of carbonyl and carboxyl groups lead to an increase of
swelling capacity and solubility, while viscosity decreases, compared to the native wheat
starch. The analysis of FTIR spectra, especially region of carbonyl/carboxyl groups
absorption, reveals high impact of process parameters on the oxidation degree and band
structure. The morphology of native and oxidized starches, investigated by the SEM
method, shows that after oxidation the surface of the starch particles becomes smoother
then for the native starch, with aggregation of small and large-sized granules.",
journal = "7th Conference of the Young Chemists of Serbia",
title = "Preparation and characterization of oxidized wheat starch with hydrogen peroxide as an environmentally friendly oxidant",
pages = "144",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6121"
}

Karić, N., Gržetić, J., Kovačević, T.,& Marinković, A.. (2019). Preparation and characterization of oxidized wheat starch with hydrogen peroxide as an environmentally friendly oxidant. in 7th Conference of the Young Chemists of Serbia, 144.
https://hdl.handle.net/21.15107/rcub_technorep_6121

Karić N, Gržetić J, Kovačević T, Marinković A. Preparation and characterization of oxidized wheat starch with hydrogen peroxide as an environmentally friendly oxidant. in 7th Conference of the Young Chemists of Serbia. 2019;:144.
https://hdl.handle.net/21.15107/rcub_technorep_6121 .

Karić, Nataša, Gržetić, Jelena, Kovačević, Tihomir, Marinković, Aleksandar, "Preparation and characterization of oxidized wheat starch with hydrogen peroxide as an environmentally friendly oxidant" in 7th Conference of the Young Chemists of Serbia (2019):144,
https://hdl.handle.net/21.15107/rcub_technorep_6121 .

TY  - JOUR
AU  - Nikolić, Vesna
AU  - Kamberović, Željko
AU  - Ranitović, Milisav
AU  - Gavrilovski, Milorad
AU  - Anđić, Zoran
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4254
AB  - This research aimed to develop a novel catalyst based on WO3/ZrSiO4 system for halogenated hydrocarbons processing. The production method of this catalyst involved extrusion and as such was simplified compared to thermo-chemical synthesis routes. It had a reduced number of process stages and a lower environmental impact at the same time. In order to examine the phase composition of the catalyst after sintering at 800 degrees C, the XRD analysis was carried out. The catalyst was then tested in chlorodifluoromethane dehalogenation process on laboratory scale at temperatures of 300, 400 and 500 degrees C in the presence of water vapor. Catalyst achieves high dehalogenation efficiencies of 88.6, 95.9, and 99.5 % for each of the process temperatures, respectively. Obtained results are in the range with those achieved by using thermo-chemically prepared dehalogenation catalysts.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Synthesis of novel wo3/zrsio4 catalysts for dehalogenation of halogenated hydrocarbons
EP  - 37
IS  - 1
SP  - 31
VL  - 25
DO  - 10.30544/411
ER  - 

@article{
author = "Nikolić, Vesna and Kamberović, Željko and Ranitović, Milisav and Gavrilovski, Milorad and Anđić, Zoran",
year = "2019",
abstract = "This research aimed to develop a novel catalyst based on WO3/ZrSiO4 system for halogenated hydrocarbons processing. The production method of this catalyst involved extrusion and as such was simplified compared to thermo-chemical synthesis routes. It had a reduced number of process stages and a lower environmental impact at the same time. In order to examine the phase composition of the catalyst after sintering at 800 degrees C, the XRD analysis was carried out. The catalyst was then tested in chlorodifluoromethane dehalogenation process on laboratory scale at temperatures of 300, 400 and 500 degrees C in the presence of water vapor. Catalyst achieves high dehalogenation efficiencies of 88.6, 95.9, and 99.5 % for each of the process temperatures, respectively. Obtained results are in the range with those achieved by using thermo-chemically prepared dehalogenation catalysts.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Synthesis of novel wo3/zrsio4 catalysts for dehalogenation of halogenated hydrocarbons",
pages = "37-31",
number = "1",
volume = "25",
doi = "10.30544/411"
}

Nikolić, V., Kamberović, Ž., Ranitović, M., Gavrilovski, M.,& Anđić, Z.. (2019). Synthesis of novel wo3/zrsio4 catalysts for dehalogenation of halogenated hydrocarbons. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 25(1), 31-37.
https://doi.org/10.30544/411

Nikolić V, Kamberović Ž, Ranitović M, Gavrilovski M, Anđić Z. Synthesis of novel wo3/zrsio4 catalysts for dehalogenation of halogenated hydrocarbons. in Metallurgical & Materials Engineering. 2019;25(1):31-37.
doi:10.30544/411 .

Nikolić, Vesna, Kamberović, Željko, Ranitović, Milisav, Gavrilovski, Milorad, Anđić, Zoran, "Synthesis of novel wo3/zrsio4 catalysts for dehalogenation of halogenated hydrocarbons" in Metallurgical & Materials Engineering, 25, no. 1 (2019):31-37,
https://doi.org/10.30544/411 . .

TY  - THES
AU  - Štulović, Marija
PY  - 2019
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=7299
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:21079/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51887887
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4683
AB  - Alkaline lead slag is a waste generated in the pyrometallurgical process of the recycling of materials based on lead with the addition of a sodium(I)-carbonate (Na2CO3) as a flux. The doctoral dissertation includes investigation of a combined process of recycling of lead materials from primary and secondary sources, as well as the possibility of pre-treatment, stabilization and solidification of the industrial sample of lead alkaline slag from the recycling process of spent lead acid batteries. In the first part of the research, the smelting process of lead materials in a short rotary furnace was examined in laboratory conditions. In the process, lead concentrate (primary raw material) and desumporized lead paste (secondary raw material) were used, after their detailed characterization including chemical and granulometric composition of the lead concentrate, as well as the chemical composition of the desumporized lead paste. The smelting process was tested in the function of the batch composition, temperature, rotation and process time in the furnace. The efficacy of the smelting process was estimated based on the achieved degree of extraction of lead from raw materials, physical and chemical properties (chemical composition, basicity, viscosity) and quantities of generated slag. The best result of the extraction efficiency of lead (98.38 %) was obtained in an experiment with combined smelting of lead concentrate (50 %) and desumporized lead paste (50 %). Slag is generated in the amount of 32 % in relation to the weight of the charge, with a content of 3.34% of lead. XRD analysis of the slag showed Na4Ca4 (Si6O18), Fe2SiO4 and FeO as the main phases (OH), less CaFe2O4, whereas FeO was the least present. Due to the use of relatively pure raw material in charge mixture, the amount of As in the generated slag was low (0.003 %). The viscosity of the generated slag was 60 P (kg/(m·s)) at 1100 ° C, which was satisfactory in terms of the good separation of the slag from the metal, and the calculated value of the basicity of 0.85 indicated its slightly acidic character. The second part of the study included the investigation of the pre-treatment process of the industrial sample of alkaline lead slag generated in the recycling process of spent lead-acid batteries. The water leaching of elements (Na, S, As, Fe, Pb) from the slag, in a reactior (discontinuous leaching) and in the innovative device, with a cylindrical-rotating washer-separator (continuous leaching) was examined. The research included the study of the possibility of removing of water soluble components from the slag, the maximum valorization of useful components, and the minimization of waste streams from the process. The starting slag is characterized. Its chemical composition, granulometric composition, mass change and slag granulation with time, solubility in water and treatment according to standard procedures (TCLP, EN 12457-2) are determined. The results of the characterization of alkaline lead slug pointed to its hazardous and specific nature (hygroscopicity, time delamination, solubility in water) and the content of toxic elements that potentially could affect the environment. Leaching degrees of Na, S and As from slag were dominant. The effects of L/S ratio, stirring speed and temperature were analyzed in the function of time. Maximum leaching degrees 95.78 % Na, 75.34 % S and 79.89 % As were determined for L/S = 20, w = 600 min-1, T = 333 K and 120 min. As kinetics was explained by the process of three-dimensional diffusion and activation energy of 15.55 kJ·mol-1. The kinetics of Na and S are explained by the two-degree diffusion model through a cylindrical layer of products, with activation energies of 18.71 kJ·mol-1 and 17.24 kJ·mol-1 respectively. The obtained results of the leaching test were used in the optimization of the patent process of the continuous pre-treatment of alkaline lead slag in the rotating-cylinder washer/separator (T = 313 K, L/S = 10, w = 200 min-1 with the setting of the retention time). In the continuous leaching process of 60 min, the maximum degree of leaching was determined Na 45 %, S 45 % and As 70 % as well as the degree of Na2SO4 utilization from the solution of 10 %, relative to the desulphurization phase of the paste. With pre-treatment of the slag in the discontinuous process, for the conditions of treatment: L/S=20, w =600 min-1, T = 333 K and 120 min, a reduction in mass of about 30% was achieved, and in the continuous process, for the elimination conditions L/S=10, w=200 min-1, T = 313 K, with adjusting retention time, about 20%. The metal-sulfide phase of the slag (fraction + 1mm) was returned to the smelting process in order to obtain useful metals. The phase of finer granulation (- 1mm) was characterized (TCLP test) as a hazardous type of waste, due to the Pb released (pH ~ 3) higher than MDK (5.00 mg·L-1) in strongly acidic conditions and further treated by stabilization/solidification process (S/S)...
AB  - Olovna alkalna šljaka je otpad koji se generiše u pirometalurškom procesu prerade olovnih sirovina, sa dodatkom topitelja natrijum(I)-karbonata (Na2CO3). U izradi doktorske disertacije ispitivan je kombinovani proces prerade olovnih sirovina iz primarnih i sekundarnih izvora, kao i mogućnost predtretmana, stabilizacije i solidifikacije industrijskog uzorka olovne alkalne šljake iz procesa reciklaže istrošenih olovnih akumulatora. U prvom delu istraživanja analiziran je proces topljenja olovnih sirovina u kratkoj rotacionoj peći, u laboratorijskim uslovima. U procesu su korišćeni olovni koncentrat (primarna sirovina) i desumporizovana olovna pasta (sekundarna sirovina), posle njihove detaljne karakterizacije, ispitivanja hemijskog i granulometrijskog sastava olovnog koncentrata, kao i hemijskog sastava desumporizovane olovne paste. Topljenje je ispitano u funkciji sastava šarže, temperature, rotacije i vremena zadržavanja materijala u peći. Efikasnost procesa topljenja je procenjena na osnovu ostvarenog stepena ekstrakcije olova iz sirovina, fizičko-hemijskih osobina (hemijski sastav, bazicitet, viskozitet) i količine generisane šljake. Najbolji rezultat efikasnosti ekstrakcije olova (98,38 %) je ostvaren u eksperimentu sa kombinovanim topljenjem olovnog koncentrata (50 %) i desumporizovane olovne paste (50 %). Generisana je šljaka u količini od 32 % u odnosu na masu polaznih sirovina, sa sadržajem 3,34 % olova, u kojoj su metodom rentgenske difrakcije (XRD - X-ray diffraction) identifikovane faze Na4Ca4(Si6O18), Fe2SiO4 i FeO(OH), manje količine faze CaFe2O4, i najmanje faze FeO. Zbog korišćenja relativno čistih sirovina u pogledu primesa, količina As u generisanoj šljaci je bila niska (0,003 %). Viskozitet generisane šljake od 60 P (kg/(m·s)), na temperaturi 1100 °C, bio je zadovoljavajući u pogledu dobrog razdvajanja šljake od metala, a izračunata vrednost baziciteta od 0,85 je ukazala na njen blago kiseli karakter. Drugi deo istraživanja obuhvatio je ispitivanje procesa predtretamana industrijskog uzorka olovne alkalne šljake, generisane u procesu reciklaže istrošenih olovnih akumulatora. Ispitano je luženje elemenata (Na, S, As, Fe, Pb) iz šljake u vodi, u reakcionom balonu (diskontinualno ispiranje) i u inovativnom uređaju, cilindričnom-rotirajućem ispirač-odvajaču (kontinualno ispiranje). Istraživanje je obuhvatilo ispitivanje mogućnosti uklanjanja u vodi rastvornih komponenata šljake, maksimalnu valorizaciju korisnih komponenata i minimizaciju otpadnih tokova iz procesa. Polazna šljaka je detaljno karakterisana, određen je hemijski i granulometriski sasatav, promena mase i granulacije šljake sa vremenom, rastvorljivost u vodi i proces luženja elemenata po standardnim procedurama (Toxicity characteristic leaching procedure – TCLP, EN 12457-2). Rezultati su ukazali na opasnu i specifičnu prirodu olovne alkalne šljake, što se ogleda u higroskopnosti, formiranju praškaste forme sa skladištenjem u atmosferi vazduha, rastvorljivosti u vodi i sadržaju toksičnih i migratornih elemenata koji mogu ugroziti životnu sredinu. Proces luženja Na, S i As iz šljake u vodi je bio dominantan. Uticaji odnosa tečno:čvrsto (L/S), brzine mešanja rastvora (w) i temperature (T) na luženje elemenata iz šljake ispitani su u funkciji vremena. Maksimalne vrednosti stepena izluženja Na od 95,78 %, S od 75,34 % i As od 79,89 % su proračunata za L / S = 20, w = 600 min-1, T = 333 K i 120 min izvođenja eksperimenta. Analiza kinetičkih parametara procesa luženja As je ukazala na model tro-dimenzione difuzije, sa energijom aktivacije 15,55 kJ∙mol-1. Luženje Na i S je objašnjeno po modelu dvo-stepene difuzije kroz cilindričan sloj proizvoda, sa energijama aktivacije 18,71 kJ∙mol-1 i 17,24 kJ∙mol-1, redom. Rezultati dobijeni u diskontinualnom procesu ispiranja šljake sa vodom su korišćeni u optimizaciji patentiranog procesa kontinualnog predtretmana olovne alkalne šljake u inovativnom uređaju, cilindričnom-rotirajućem ispirač-odvajaču (T = 313 K, L/S = 10, w = 200 min-1 sa podešavanjem vremena zadržavanja). U procesu kontinualnog ispiranja od 60 min proračunati su maksimalni stepeni izluženja Na 45 %, S 45 % i As 70 %, kao i stepen iskorišćenja Na2SO4 iz rastvora od ispiranja do 10 %, u odnosu na fazu desumporizacije paste. Sa ispiranjem šljake u diskontinulanom procesu (L / S = 20, w = 600 min-1, T = 333 K i 120 min), ostvareno je smanjenje mase od oko 30 %, a u kontinualnom procesu (L/S = 10, w = 200 min-1, T = 313 K, sa podešavanjem vremena zadržavanja), oko 20 %. Krupnija frakcija šljake (+1 mm), bogata metal-sulfidnim komponetama (kamenac), vraćena je u proces topljenja, u cilju valorizacije korisnih metala. Sitnija frakcija šljake (-1 mm), karakterisana je u opasnu vrstu otpada po TCLP testu, zbog koncentracije Pb u kiselim (pH ~3) lužnim rastvorima iznad maksimalno dozvoljene koncentracije (MDK) (5,00 mg·L-1), i dalje korišćena u pocesu stabilizacije i solidifikacije (S/S)...
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Alkaline lead in an innovative recycling process with pretreatment, stabilization and solidification
T1  - Olovna alkalna šljaka u inovativnom procesu reciklaže sa predtretmanom, stabilizacijom i solidifikacijom
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4683
ER  - 

@phdthesis{
author = "Štulović, Marija",
year = "2019",
abstract = "Alkaline lead slag is a waste generated in the pyrometallurgical process of the recycling of materials based on lead with the addition of a sodium(I)-carbonate (Na2CO3) as a flux. The doctoral dissertation includes investigation of a combined process of recycling of lead materials from primary and secondary sources, as well as the possibility of pre-treatment, stabilization and solidification of the industrial sample of lead alkaline slag from the recycling process of spent lead acid batteries. In the first part of the research, the smelting process of lead materials in a short rotary furnace was examined in laboratory conditions. In the process, lead concentrate (primary raw material) and desumporized lead paste (secondary raw material) were used, after their detailed characterization including chemical and granulometric composition of the lead concentrate, as well as the chemical composition of the desumporized lead paste. The smelting process was tested in the function of the batch composition, temperature, rotation and process time in the furnace. The efficacy of the smelting process was estimated based on the achieved degree of extraction of lead from raw materials, physical and chemical properties (chemical composition, basicity, viscosity) and quantities of generated slag. The best result of the extraction efficiency of lead (98.38 %) was obtained in an experiment with combined smelting of lead concentrate (50 %) and desumporized lead paste (50 %). Slag is generated in the amount of 32 % in relation to the weight of the charge, with a content of 3.34% of lead. XRD analysis of the slag showed Na4Ca4 (Si6O18), Fe2SiO4 and FeO as the main phases (OH), less CaFe2O4, whereas FeO was the least present. Due to the use of relatively pure raw material in charge mixture, the amount of As in the generated slag was low (0.003 %). The viscosity of the generated slag was 60 P (kg/(m·s)) at 1100 ° C, which was satisfactory in terms of the good separation of the slag from the metal, and the calculated value of the basicity of 0.85 indicated its slightly acidic character. The second part of the study included the investigation of the pre-treatment process of the industrial sample of alkaline lead slag generated in the recycling process of spent lead-acid batteries. The water leaching of elements (Na, S, As, Fe, Pb) from the slag, in a reactior (discontinuous leaching) and in the innovative device, with a cylindrical-rotating washer-separator (continuous leaching) was examined. The research included the study of the possibility of removing of water soluble components from the slag, the maximum valorization of useful components, and the minimization of waste streams from the process. The starting slag is characterized. Its chemical composition, granulometric composition, mass change and slag granulation with time, solubility in water and treatment according to standard procedures (TCLP, EN 12457-2) are determined. The results of the characterization of alkaline lead slug pointed to its hazardous and specific nature (hygroscopicity, time delamination, solubility in water) and the content of toxic elements that potentially could affect the environment. Leaching degrees of Na, S and As from slag were dominant. The effects of L/S ratio, stirring speed and temperature were analyzed in the function of time. Maximum leaching degrees 95.78 % Na, 75.34 % S and 79.89 % As were determined for L/S = 20, w = 600 min-1, T = 333 K and 120 min. As kinetics was explained by the process of three-dimensional diffusion and activation energy of 15.55 kJ·mol-1. The kinetics of Na and S are explained by the two-degree diffusion model through a cylindrical layer of products, with activation energies of 18.71 kJ·mol-1 and 17.24 kJ·mol-1 respectively. The obtained results of the leaching test were used in the optimization of the patent process of the continuous pre-treatment of alkaline lead slag in the rotating-cylinder washer/separator (T = 313 K, L/S = 10, w = 200 min-1 with the setting of the retention time). In the continuous leaching process of 60 min, the maximum degree of leaching was determined Na 45 %, S 45 % and As 70 % as well as the degree of Na2SO4 utilization from the solution of 10 %, relative to the desulphurization phase of the paste. With pre-treatment of the slag in the discontinuous process, for the conditions of treatment: L/S=20, w =600 min-1, T = 333 K and 120 min, a reduction in mass of about 30% was achieved, and in the continuous process, for the elimination conditions L/S=10, w=200 min-1, T = 313 K, with adjusting retention time, about 20%. The metal-sulfide phase of the slag (fraction + 1mm) was returned to the smelting process in order to obtain useful metals. The phase of finer granulation (- 1mm) was characterized (TCLP test) as a hazardous type of waste, due to the Pb released (pH ~ 3) higher than MDK (5.00 mg·L-1) in strongly acidic conditions and further treated by stabilization/solidification process (S/S)..., Olovna alkalna šljaka je otpad koji se generiše u pirometalurškom procesu prerade olovnih sirovina, sa dodatkom topitelja natrijum(I)-karbonata (Na2CO3). U izradi doktorske disertacije ispitivan je kombinovani proces prerade olovnih sirovina iz primarnih i sekundarnih izvora, kao i mogućnost predtretmana, stabilizacije i solidifikacije industrijskog uzorka olovne alkalne šljake iz procesa reciklaže istrošenih olovnih akumulatora. U prvom delu istraživanja analiziran je proces topljenja olovnih sirovina u kratkoj rotacionoj peći, u laboratorijskim uslovima. U procesu su korišćeni olovni koncentrat (primarna sirovina) i desumporizovana olovna pasta (sekundarna sirovina), posle njihove detaljne karakterizacije, ispitivanja hemijskog i granulometrijskog sastava olovnog koncentrata, kao i hemijskog sastava desumporizovane olovne paste. Topljenje je ispitano u funkciji sastava šarže, temperature, rotacije i vremena zadržavanja materijala u peći. Efikasnost procesa topljenja je procenjena na osnovu ostvarenog stepena ekstrakcije olova iz sirovina, fizičko-hemijskih osobina (hemijski sastav, bazicitet, viskozitet) i količine generisane šljake. Najbolji rezultat efikasnosti ekstrakcije olova (98,38 %) je ostvaren u eksperimentu sa kombinovanim topljenjem olovnog koncentrata (50 %) i desumporizovane olovne paste (50 %). Generisana je šljaka u količini od 32 % u odnosu na masu polaznih sirovina, sa sadržajem 3,34 % olova, u kojoj su metodom rentgenske difrakcije (XRD - X-ray diffraction) identifikovane faze Na4Ca4(Si6O18), Fe2SiO4 i FeO(OH), manje količine faze CaFe2O4, i najmanje faze FeO. Zbog korišćenja relativno čistih sirovina u pogledu primesa, količina As u generisanoj šljaci je bila niska (0,003 %). Viskozitet generisane šljake od 60 P (kg/(m·s)), na temperaturi 1100 °C, bio je zadovoljavajući u pogledu dobrog razdvajanja šljake od metala, a izračunata vrednost baziciteta od 0,85 je ukazala na njen blago kiseli karakter. Drugi deo istraživanja obuhvatio je ispitivanje procesa predtretamana industrijskog uzorka olovne alkalne šljake, generisane u procesu reciklaže istrošenih olovnih akumulatora. Ispitano je luženje elemenata (Na, S, As, Fe, Pb) iz šljake u vodi, u reakcionom balonu (diskontinualno ispiranje) i u inovativnom uređaju, cilindričnom-rotirajućem ispirač-odvajaču (kontinualno ispiranje). Istraživanje je obuhvatilo ispitivanje mogućnosti uklanjanja u vodi rastvornih komponenata šljake, maksimalnu valorizaciju korisnih komponenata i minimizaciju otpadnih tokova iz procesa. Polazna šljaka je detaljno karakterisana, određen je hemijski i granulometriski sasatav, promena mase i granulacije šljake sa vremenom, rastvorljivost u vodi i proces luženja elemenata po standardnim procedurama (Toxicity characteristic leaching procedure – TCLP, EN 12457-2). Rezultati su ukazali na opasnu i specifičnu prirodu olovne alkalne šljake, što se ogleda u higroskopnosti, formiranju praškaste forme sa skladištenjem u atmosferi vazduha, rastvorljivosti u vodi i sadržaju toksičnih i migratornih elemenata koji mogu ugroziti životnu sredinu. Proces luženja Na, S i As iz šljake u vodi je bio dominantan. Uticaji odnosa tečno:čvrsto (L/S), brzine mešanja rastvora (w) i temperature (T) na luženje elemenata iz šljake ispitani su u funkciji vremena. Maksimalne vrednosti stepena izluženja Na od 95,78 %, S od 75,34 % i As od 79,89 % su proračunata za L / S = 20, w = 600 min-1, T = 333 K i 120 min izvođenja eksperimenta. Analiza kinetičkih parametara procesa luženja As je ukazala na model tro-dimenzione difuzije, sa energijom aktivacije 15,55 kJ∙mol-1. Luženje Na i S je objašnjeno po modelu dvo-stepene difuzije kroz cilindričan sloj proizvoda, sa energijama aktivacije 18,71 kJ∙mol-1 i 17,24 kJ∙mol-1, redom. Rezultati dobijeni u diskontinualnom procesu ispiranja šljake sa vodom su korišćeni u optimizaciji patentiranog procesa kontinualnog predtretmana olovne alkalne šljake u inovativnom uređaju, cilindričnom-rotirajućem ispirač-odvajaču (T = 313 K, L/S = 10, w = 200 min-1 sa podešavanjem vremena zadržavanja). U procesu kontinualnog ispiranja od 60 min proračunati su maksimalni stepeni izluženja Na 45 %, S 45 % i As 70 %, kao i stepen iskorišćenja Na2SO4 iz rastvora od ispiranja do 10 %, u odnosu na fazu desumporizacije paste. Sa ispiranjem šljake u diskontinulanom procesu (L / S = 20, w = 600 min-1, T = 333 K i 120 min), ostvareno je smanjenje mase od oko 30 %, a u kontinualnom procesu (L/S = 10, w = 200 min-1, T = 313 K, sa podešavanjem vremena zadržavanja), oko 20 %. Krupnija frakcija šljake (+1 mm), bogata metal-sulfidnim komponetama (kamenac), vraćena je u proces topljenja, u cilju valorizacije korisnih metala. Sitnija frakcija šljake (-1 mm), karakterisana je u opasnu vrstu otpada po TCLP testu, zbog koncentracije Pb u kiselim (pH ~3) lužnim rastvorima iznad maksimalno dozvoljene koncentracije (MDK) (5,00 mg·L-1), i dalje korišćena u pocesu stabilizacije i solidifikacije (S/S)...",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Alkaline lead in an innovative recycling process with pretreatment, stabilization and solidification, Olovna alkalna šljaka u inovativnom procesu reciklaže sa predtretmanom, stabilizacijom i solidifikacijom",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4683"
}

Štulović, M.. (2019). Alkaline lead in an innovative recycling process with pretreatment, stabilization and solidification. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_4683

Štulović M. Alkaline lead in an innovative recycling process with pretreatment, stabilization and solidification. 2019;.
https://hdl.handle.net/21.15107/rcub_technorep_4683 .

Štulović, Marija, "Alkaline lead in an innovative recycling process with pretreatment, stabilization and solidification" (2019),
https://hdl.handle.net/21.15107/rcub_technorep_4683 .

TY  - JOUR
AU  - Dimitrijević, Silvana B.
AU  - Alagić, Slađana Č.
AU  - Rajčić-Vujasinović, Mirjana M.
AU  - Dimitrijević, Stevan P.
AU  - Ivanović, Aleksandra T.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5898
AB  - The aim of this study was a characterization of the crystals of gold complexes based on mercaptotrazole, obtained from solutions with different pH values (2, 4, 7, and 9), using the methods of infrared (IR) and Raman spectroscopy. Both methods provided very useful information on the investigated systems and signalized existence of the Au-S bond in the complexes obtained at pH = 2 and 9. Recorded spectra clearly illustrated the changes that occur in the systems as a consequence of pH change. At the same time, the results also showed that the pyrrole nitrogen atoms stay protonated at pH = 9, which is not in favor of the assumption evolved from the previous UV-vis analysis of possible additional coordination between Au and possible deprotonated nitrogen atoms at this particular pH.
PB  - Bulgarian Academy of Sciences
T2  - Bulgarian Chemical Communications
T1  - IR/Raman characterization of Au-mercaptotriazole crystals
EP  - 364
IS  - 3
SP  - 358
VL  - 51
DO  - 10.34049/bcc.51.3.5003
ER  - 

@article{
author = "Dimitrijević, Silvana B. and Alagić, Slađana Č. and Rajčić-Vujasinović, Mirjana M. and Dimitrijević, Stevan P. and Ivanović, Aleksandra T.",
year = "2019",
abstract = "The aim of this study was a characterization of the crystals of gold complexes based on mercaptotrazole, obtained from solutions with different pH values (2, 4, 7, and 9), using the methods of infrared (IR) and Raman spectroscopy. Both methods provided very useful information on the investigated systems and signalized existence of the Au-S bond in the complexes obtained at pH = 2 and 9. Recorded spectra clearly illustrated the changes that occur in the systems as a consequence of pH change. At the same time, the results also showed that the pyrrole nitrogen atoms stay protonated at pH = 9, which is not in favor of the assumption evolved from the previous UV-vis analysis of possible additional coordination between Au and possible deprotonated nitrogen atoms at this particular pH.",
publisher = "Bulgarian Academy of Sciences",
journal = "Bulgarian Chemical Communications",
title = "IR/Raman characterization of Au-mercaptotriazole crystals",
pages = "364-358",
number = "3",
volume = "51",
doi = "10.34049/bcc.51.3.5003"
}

Dimitrijević, S. B., Alagić, S. Č., Rajčić-Vujasinović, M. M., Dimitrijević, S. P.,& Ivanović, A. T.. (2019). IR/Raman characterization of Au-mercaptotriazole crystals. in Bulgarian Chemical Communications
Bulgarian Academy of Sciences., 51(3), 358-364.
https://doi.org/10.34049/bcc.51.3.5003

Dimitrijević SB, Alagić SČ, Rajčić-Vujasinović MM, Dimitrijević SP, Ivanović AT. IR/Raman characterization of Au-mercaptotriazole crystals. in Bulgarian Chemical Communications. 2019;51(3):358-364.
doi:10.34049/bcc.51.3.5003 .

Dimitrijević, Silvana B., Alagić, Slađana Č., Rajčić-Vujasinović, Mirjana M., Dimitrijević, Stevan P., Ivanović, Aleksandra T., "IR/Raman characterization of Au-mercaptotriazole crystals" in Bulgarian Chemical Communications, 51, no. 3 (2019):358-364,
https://doi.org/10.34049/bcc.51.3.5003 . .

TY  - JOUR
AU  - Ranitović, Milisav
AU  - Đokić, Jovana
AU  - Korać, Marija
AU  - Gajić, Nataša
AU  - Dimitrijević, Stevan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4077
AB  - This study presents the results of the theoretical assessment and a preliminary experimental investigation of technology metals (TM) recovery from magnetic fraction obtained after mechanical treatment of waste printed circuit boards (WPCBs). Experimental work included physical and chemical characterization, thermodynamic analysis, and pyrometallurgical tests corresponding to secondary lead, copper, and steel metallurgy. Technology metals recyclability and recovery potential were evaluated with respect to their distribution between metal and slag phase (difficult for recovering) versus the dust phase (easy for recovering). According to obtained results, it was determined that high-temperature processing of magnetic fraction in the electric arc furnace promotes volatilization of the TM and their pre-concentration in the filter as a dust product from which they could be valorized using further hydrometallurgical methods.
PB  - Association of Metallurgical Engineers of Serbia
T2  - Metallurgical and Materials Engineering
T1  - Recyclability of technology metals from E-waste: Case study of in and Ga recovery from magnetic fraction
EP  - 194
IS  - 3
SP  - 183
VL  - 25
DO  - 10.30544/446
ER  - 

@article{
author = "Ranitović, Milisav and Đokić, Jovana and Korać, Marija and Gajić, Nataša and Dimitrijević, Stevan",
year = "2019",
abstract = "This study presents the results of the theoretical assessment and a preliminary experimental investigation of technology metals (TM) recovery from magnetic fraction obtained after mechanical treatment of waste printed circuit boards (WPCBs). Experimental work included physical and chemical characterization, thermodynamic analysis, and pyrometallurgical tests corresponding to secondary lead, copper, and steel metallurgy. Technology metals recyclability and recovery potential were evaluated with respect to their distribution between metal and slag phase (difficult for recovering) versus the dust phase (easy for recovering). According to obtained results, it was determined that high-temperature processing of magnetic fraction in the electric arc furnace promotes volatilization of the TM and their pre-concentration in the filter as a dust product from which they could be valorized using further hydrometallurgical methods.",
publisher = "Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical and Materials Engineering",
title = "Recyclability of technology metals from E-waste: Case study of in and Ga recovery from magnetic fraction",
pages = "194-183",
number = "3",
volume = "25",
doi = "10.30544/446"
}

Ranitović, M., Đokić, J., Korać, M., Gajić, N.,& Dimitrijević, S.. (2019). Recyclability of technology metals from E-waste: Case study of in and Ga recovery from magnetic fraction. in Metallurgical and Materials Engineering
Association of Metallurgical Engineers of Serbia., 25(3), 183-194.
https://doi.org/10.30544/446

Ranitović M, Đokić J, Korać M, Gajić N, Dimitrijević S. Recyclability of technology metals from E-waste: Case study of in and Ga recovery from magnetic fraction. in Metallurgical and Materials Engineering. 2019;25(3):183-194.
doi:10.30544/446 .

Ranitović, Milisav, Đokić, Jovana, Korać, Marija, Gajić, Nataša, Dimitrijević, Stevan, "Recyclability of technology metals from E-waste: Case study of in and Ga recovery from magnetic fraction" in Metallurgical and Materials Engineering, 25, no. 3 (2019):183-194,
https://doi.org/10.30544/446 . .

TY  - JOUR
AU  - Štulović, Marija
AU  - Radovanović, Dragana
AU  - Kamberović, Željko
AU  - Korać, Marija
AU  - Anđić, Zoran
AU  - Ranitović, Milisav
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4096
AB  - Secondary alkaline lead slag (SALS), generated during lead-acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under atmospheric condition for 30 days, the SALS was sieved and coarse fraction (+1 mm) was returned to the recycling process. Finer fraction (-1 mm) was treated by water leaching to remove soluble compounds. SALS compositions prior and after the pre-treatment and effects of liquid-to-solid ratio, stirring rate, and temperature on Na, S, Fe, As, and Pb leaching from SALS were analyzed. The results show that maximal leaching degrees were 95.78%, 75.32%, and 79.89% for Na, S, and As, respectively (20 l kg(-1), 600 min(-1), 333 K, 120 min). Leachability of Na and S from SALS was controlled by dissolution of Na2SO4 that could be recovered from leaching solution. Isothermal As leaching is described by diffusion mechanism with activation energy of 15.5 kJ mol(-1). Insoluble Pb and Fe sulfates, sulfides, and oxides remained in the SALS. Pre-treated SALS, with reduced mass up to 32%, was solidified in cement matrix. The results of toxicity characteristic leaching procedure and unconfined compressive strength confirmed effectiveness of As removal from SALS by water leaching and Pb immobilization in cement matrix containing 20% of SALS.
PB  - Springer, New York
T2  - Journal of Material Cycles and Waste Management
T1  - Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products
EP  - 1413
IS  - 6
SP  - 1402
VL  - 21
DO  - 10.1007/s10163-019-00892-8
ER  - 

@article{
author = "Štulović, Marija and Radovanović, Dragana and Kamberović, Željko and Korać, Marija and Anđić, Zoran and Ranitović, Milisav",
year = "2019",
abstract = "Secondary alkaline lead slag (SALS), generated during lead-acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under atmospheric condition for 30 days, the SALS was sieved and coarse fraction (+1 mm) was returned to the recycling process. Finer fraction (-1 mm) was treated by water leaching to remove soluble compounds. SALS compositions prior and after the pre-treatment and effects of liquid-to-solid ratio, stirring rate, and temperature on Na, S, Fe, As, and Pb leaching from SALS were analyzed. The results show that maximal leaching degrees were 95.78%, 75.32%, and 79.89% for Na, S, and As, respectively (20 l kg(-1), 600 min(-1), 333 K, 120 min). Leachability of Na and S from SALS was controlled by dissolution of Na2SO4 that could be recovered from leaching solution. Isothermal As leaching is described by diffusion mechanism with activation energy of 15.5 kJ mol(-1). Insoluble Pb and Fe sulfates, sulfides, and oxides remained in the SALS. Pre-treated SALS, with reduced mass up to 32%, was solidified in cement matrix. The results of toxicity characteristic leaching procedure and unconfined compressive strength confirmed effectiveness of As removal from SALS by water leaching and Pb immobilization in cement matrix containing 20% of SALS.",
publisher = "Springer, New York",
journal = "Journal of Material Cycles and Waste Management",
title = "Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products",
pages = "1413-1402",
number = "6",
volume = "21",
doi = "10.1007/s10163-019-00892-8"
}

Štulović, M., Radovanović, D., Kamberović, Ž., Korać, M., Anđić, Z.,& Ranitović, M.. (2019). Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products. in Journal of Material Cycles and Waste Management
Springer, New York., 21(6), 1402-1413.
https://doi.org/10.1007/s10163-019-00892-8

Štulović M, Radovanović D, Kamberović Ž, Korać M, Anđić Z, Ranitović M. Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products. in Journal of Material Cycles and Waste Management. 2019;21(6):1402-1413.
doi:10.1007/s10163-019-00892-8 .

Štulović, Marija, Radovanović, Dragana, Kamberović, Željko, Korać, Marija, Anđić, Zoran, Ranitović, Milisav, "Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products" in Journal of Material Cycles and Waste Management, 21, no. 6 (2019):1402-1413,
https://doi.org/10.1007/s10163-019-00892-8 . .

TY  - JOUR
AU  - Štulović, Marija
AU  - Radovanović, Dragana
AU  - Kamberović, Željko
AU  - Korać, Marija
AU  - Anđić, Zoran
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4240
AB  - Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of lead-acid batteries that may be suitable in construction materials. The environmental impact of the use of lead slag as a partial replacement of fine aggregates in the cement-based stabilization/solidification (S/S) process for the preparation of concrete was studied in this paper. Solidified products containing 10%, 15%, 20%, and 25% slag were laboratory tested by unconfined compressive strength (UCS) analyses and the Toxicity Characteristic Leaching Procedure (TCLP). At the same time, the leachability of toxic elements from solidified products with a high percent of slag was evaluated under environmental conditions for during one year. The results of the UCS and TCLP indicated that utilization of this type of slag in cement-based applications may be justified with its controlled addition. However, the described application of the slag was disputed due to the high release of As under high alkaline environmental conditions. Eh-pH analyses and the geochemical modeling using the software PHREEQC were evaluated, as well as the mechanism of pollutant (Pb, As) immobilization (precipitation, adsorption) as a function of pH conditions.
PB  - MDPI, Basel
T2  - International Journal of Environmental Research and Public Health
T1  - Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag
IS  - 11
VL  - 16
DO  - 10.3390/ijerph16112005
ER  - 

@article{
author = "Štulović, Marija and Radovanović, Dragana and Kamberović, Željko and Korać, Marija and Anđić, Zoran",
year = "2019",
abstract = "Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of lead-acid batteries that may be suitable in construction materials. The environmental impact of the use of lead slag as a partial replacement of fine aggregates in the cement-based stabilization/solidification (S/S) process for the preparation of concrete was studied in this paper. Solidified products containing 10%, 15%, 20%, and 25% slag were laboratory tested by unconfined compressive strength (UCS) analyses and the Toxicity Characteristic Leaching Procedure (TCLP). At the same time, the leachability of toxic elements from solidified products with a high percent of slag was evaluated under environmental conditions for during one year. The results of the UCS and TCLP indicated that utilization of this type of slag in cement-based applications may be justified with its controlled addition. However, the described application of the slag was disputed due to the high release of As under high alkaline environmental conditions. Eh-pH analyses and the geochemical modeling using the software PHREEQC were evaluated, as well as the mechanism of pollutant (Pb, As) immobilization (precipitation, adsorption) as a function of pH conditions.",
publisher = "MDPI, Basel",
journal = "International Journal of Environmental Research and Public Health",
title = "Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag",
number = "11",
volume = "16",
doi = "10.3390/ijerph16112005"
}

Štulović, M., Radovanović, D., Kamberović, Ž., Korać, M.,& Anđić, Z.. (2019). Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag. in International Journal of Environmental Research and Public Health
MDPI, Basel., 16(11).
https://doi.org/10.3390/ijerph16112005

Štulović M, Radovanović D, Kamberović Ž, Korać M, Anđić Z. Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag. in International Journal of Environmental Research and Public Health. 2019;16(11).
doi:10.3390/ijerph16112005 .

Štulović, Marija, Radovanović, Dragana, Kamberović, Željko, Korać, Marija, Anđić, Zoran, "Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag" in International Journal of Environmental Research and Public Health, 16, no. 11 (2019),
https://doi.org/10.3390/ijerph16112005 . .

TY  - JOUR
AU  - Gajić, Nataša
AU  - Kamberović, Željko
AU  - Anđić, Zoran
AU  - Trpčevská, Jarmila
AU  - Plešingerova, Beatrice
AU  - Korać, Marija
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4247
AB  - This paper describes the synthesis of tungsten disulfide (WS2) powder by the sulfurization of tungsten trioxide (WO3) particles in the presence of additive potassium carbonate (K2CO3) in nitrogen (N-2) atmosphere, first at lower temperature (200 degrees C) and followed by reduction at higher temperature (900 degrees C). In addition, the ultrasonic spray pyrolysis of ammonium meta-tungstate hydrate (AMT) was used for the production of WO3 particles at 650 degrees C in air. The HSC ChemistryA (R) software package 9.0 was used for the analysis of chemistry and thermodynamic parameters of the processes for WS2 powder synthesis. The crystalline structure and phase composition of all synthesized powders were analyzed by X-ray diffraction (XRD) measurements. The morphology and chemical composition of these samples were examined by scanning electron microscopy (SEM) combined with energy dispersive X-ray analysis (EDX).
PB  - MDPI, Basel
T2  - Metals
T1  - Synthesis of Tribological WS2 Powder from WO3 Prepared by Ultrasonic Spray Pyrolysis (USP)
IS  - 3
VL  - 9
DO  - 10.3390/met9030277
ER  - 

@article{
author = "Gajić, Nataša and Kamberović, Željko and Anđić, Zoran and Trpčevská, Jarmila and Plešingerova, Beatrice and Korać, Marija",
year = "2019",
abstract = "This paper describes the synthesis of tungsten disulfide (WS2) powder by the sulfurization of tungsten trioxide (WO3) particles in the presence of additive potassium carbonate (K2CO3) in nitrogen (N-2) atmosphere, first at lower temperature (200 degrees C) and followed by reduction at higher temperature (900 degrees C). In addition, the ultrasonic spray pyrolysis of ammonium meta-tungstate hydrate (AMT) was used for the production of WO3 particles at 650 degrees C in air. The HSC ChemistryA (R) software package 9.0 was used for the analysis of chemistry and thermodynamic parameters of the processes for WS2 powder synthesis. The crystalline structure and phase composition of all synthesized powders were analyzed by X-ray diffraction (XRD) measurements. The morphology and chemical composition of these samples were examined by scanning electron microscopy (SEM) combined with energy dispersive X-ray analysis (EDX).",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Synthesis of Tribological WS2 Powder from WO3 Prepared by Ultrasonic Spray Pyrolysis (USP)",
number = "3",
volume = "9",
doi = "10.3390/met9030277"
}

Gajić, N., Kamberović, Ž., Anđić, Z., Trpčevská, J., Plešingerova, B.,& Korać, M.. (2019). Synthesis of Tribological WS2 Powder from WO3 Prepared by Ultrasonic Spray Pyrolysis (USP). in Metals
MDPI, Basel., 9(3).
https://doi.org/10.3390/met9030277

Gajić N, Kamberović Ž, Anđić Z, Trpčevská J, Plešingerova B, Korać M. Synthesis of Tribological WS2 Powder from WO3 Prepared by Ultrasonic Spray Pyrolysis (USP). in Metals. 2019;9(3).
doi:10.3390/met9030277 .

Gajić, Nataša, Kamberović, Željko, Anđić, Zoran, Trpčevská, Jarmila, Plešingerova, Beatrice, Korać, Marija, "Synthesis of Tribological WS2 Powder from WO3 Prepared by Ultrasonic Spray Pyrolysis (USP)" in Metals, 9, no. 3 (2019),
https://doi.org/10.3390/met9030277 . .

TY  - JOUR
AU  - Gajić, Nataša
AU  - Kamberović, Željko
AU  - Anđić, Zoran
AU  - Korać, Marija
AU  - Trpčevská, Jarmila
AU  - Stamatović, Mirko
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4256
AB  - The aim of this research was to study the effect of graphite addition in the process of synthesis of tribological materials based on tin sulphides. The tin sulphides powders were synthesized from selected precursors by pyrometallurgical method in rotary tilting tube furnace. The thermodynamic parameters of the synthesis were determined using HSC Chemistry software modelling package. In addition, the synthesis process was also characterized by the thermal analysis method: simultaneous differential scanning calorimetry and thermogravimetry (DCS-TGA). The characterization of the synthesized tin sulphides powders included analysis of chemical composition by optical emission spectroscopy, phase composition identification by X-ray diffraction (XRD) and examination of morphology, as well as elemental composition by scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS). The hexagonal SnS2 and orthorhombic Sn2S3 phases were formed after the thermal treatment of starting powders in nitrogen atmosphere. The obtained results indicate the positive effects of the graphite addition which enables the synthesis of tin sulphide powders with appropriate content of sulphide phases with minimal loss of sulphur.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Improving the synthesis process of tribological materials based on tin sulphides by adding graphite as additive
EP  - 433
IS  - 4
SP  - 423
VL  - 84
DO  - 10.2298/JSC180628102G
ER  - 

@article{
author = "Gajić, Nataša and Kamberović, Željko and Anđić, Zoran and Korać, Marija and Trpčevská, Jarmila and Stamatović, Mirko",
year = "2019",
abstract = "The aim of this research was to study the effect of graphite addition in the process of synthesis of tribological materials based on tin sulphides. The tin sulphides powders were synthesized from selected precursors by pyrometallurgical method in rotary tilting tube furnace. The thermodynamic parameters of the synthesis were determined using HSC Chemistry software modelling package. In addition, the synthesis process was also characterized by the thermal analysis method: simultaneous differential scanning calorimetry and thermogravimetry (DCS-TGA). The characterization of the synthesized tin sulphides powders included analysis of chemical composition by optical emission spectroscopy, phase composition identification by X-ray diffraction (XRD) and examination of morphology, as well as elemental composition by scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS). The hexagonal SnS2 and orthorhombic Sn2S3 phases were formed after the thermal treatment of starting powders in nitrogen atmosphere. The obtained results indicate the positive effects of the graphite addition which enables the synthesis of tin sulphide powders with appropriate content of sulphide phases with minimal loss of sulphur.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Improving the synthesis process of tribological materials based on tin sulphides by adding graphite as additive",
pages = "433-423",
number = "4",
volume = "84",
doi = "10.2298/JSC180628102G"
}

Gajić, N., Kamberović, Ž., Anđić, Z., Korać, M., Trpčevská, J.,& Stamatović, M.. (2019). Improving the synthesis process of tribological materials based on tin sulphides by adding graphite as additive. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 84(4), 423-433.
https://doi.org/10.2298/JSC180628102G

Gajić N, Kamberović Ž, Anđić Z, Korać M, Trpčevská J, Stamatović M. Improving the synthesis process of tribological materials based on tin sulphides by adding graphite as additive. in Journal of the Serbian Chemical Society. 2019;84(4):423-433.
doi:10.2298/JSC180628102G .

Gajić, Nataša, Kamberović, Željko, Anđić, Zoran, Korać, Marija, Trpčevská, Jarmila, Stamatović, Mirko, "Improving the synthesis process of tribological materials based on tin sulphides by adding graphite as additive" in Journal of the Serbian Chemical Society, 84, no. 4 (2019):423-433,
https://doi.org/10.2298/JSC180628102G . .

TY  - JOUR
AU  - Manojlović, Vaso
AU  - Kamberović, Željko
AU  - Gajić, Nataša
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4301
AB  - This paper aims to consider the treatment of jarosite residue using a different reducing agents, aluminum, magnesium, and carbon. The jarosite residue is not standard-it contains higher amounts of Pb and Ag, as well as in, Ga and Ge. We show thermodynamical conditions of gas phase equilibrium for the given experiments and predominance diagrams that show potential for obtaining critical metals in the metallic phase. Using a mixture of aluminum and magnesium, as reducing agents, showed proper fuming of Zn and Pb at a temperature of 1200 °C. However, magnesium alone, and carbon in the mixture of reducing agents cause poor results for zinc fuming, which is explained by the modeling of the given compositions.
AB  - U ovom radu prikazan je metod tretmana jarosit ostatka pomoću različitih reducenata: aluminijuma, magnezijum i ugljenika. Jarosit ostatak nije standardan -sadrži veće koilčine Pb i Ag, a pored njih i in, Ga i Ge. Prikazani su termodinamički uslovi ravnoteže gasne faze za date eksperimente, kao i uslovi u kojima će kritični metali biti sakupljeni u metalnoj fazi. Korišćenjem mešavine aluminijuma i magnezijuma kao reducenata postignuto je dobro isparavanje Zn i Pb na temperaturi od 1200 °C. Međutim, korišćenje samo magnezijuma ili ugljenika sa ostalim reducentima dovode do lošijih rezultata isparavanja cinka, što je objašnjeno modelovanjem datih sastava iz eksperimenata.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - An alternative route for valorization of valuable metals from jarosite residue
T1  - Alternativna metoda za valorizaciju vrednih metala iz jarosit ostatka
EP  - 393
IS  - 3
SP  - 388
VL  - 74
DO  - 10.5937/tehnika1903388M
ER  - 

@article{
author = "Manojlović, Vaso and Kamberović, Željko and Gajić, Nataša",
year = "2019",
abstract = "This paper aims to consider the treatment of jarosite residue using a different reducing agents, aluminum, magnesium, and carbon. The jarosite residue is not standard-it contains higher amounts of Pb and Ag, as well as in, Ga and Ge. We show thermodynamical conditions of gas phase equilibrium for the given experiments and predominance diagrams that show potential for obtaining critical metals in the metallic phase. Using a mixture of aluminum and magnesium, as reducing agents, showed proper fuming of Zn and Pb at a temperature of 1200 °C. However, magnesium alone, and carbon in the mixture of reducing agents cause poor results for zinc fuming, which is explained by the modeling of the given compositions., U ovom radu prikazan je metod tretmana jarosit ostatka pomoću različitih reducenata: aluminijuma, magnezijum i ugljenika. Jarosit ostatak nije standardan -sadrži veće koilčine Pb i Ag, a pored njih i in, Ga i Ge. Prikazani su termodinamički uslovi ravnoteže gasne faze za date eksperimente, kao i uslovi u kojima će kritični metali biti sakupljeni u metalnoj fazi. Korišćenjem mešavine aluminijuma i magnezijuma kao reducenata postignuto je dobro isparavanje Zn i Pb na temperaturi od 1200 °C. Međutim, korišćenje samo magnezijuma ili ugljenika sa ostalim reducentima dovode do lošijih rezultata isparavanja cinka, što je objašnjeno modelovanjem datih sastava iz eksperimenata.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "An alternative route for valorization of valuable metals from jarosite residue, Alternativna metoda za valorizaciju vrednih metala iz jarosit ostatka",
pages = "393-388",
number = "3",
volume = "74",
doi = "10.5937/tehnika1903388M"
}

Manojlović, V., Kamberović, Ž.,& Gajić, N.. (2019). An alternative route for valorization of valuable metals from jarosite residue. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 74(3), 388-393.
https://doi.org/10.5937/tehnika1903388M

Manojlović V, Kamberović Ž, Gajić N. An alternative route for valorization of valuable metals from jarosite residue. in Tehnika. 2019;74(3):388-393.
doi:10.5937/tehnika1903388M .

Manojlović, Vaso, Kamberović, Željko, Gajić, Nataša, "An alternative route for valorization of valuable metals from jarosite residue" in Tehnika, 74, no. 3 (2019):388-393,
https://doi.org/10.5937/tehnika1903388M . .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Stanković, Srđan
AU  - Karnberović, Željko
AU  - Štrbac, Nada
AU  - Manojlović, Vaso
AU  - Petronijević, Nela
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4112
AB  - In ores, chalcopyrite is usually associated with other sulfide minerals, such as sphalerite, galena, and pyrite, in a dispersed form, with complex mineralogical structures. Concentrates obtained by flotation of such ores are unsuitable for pyrometallurgical processing owing to their poor quality and low metal recovery. This paper presents the leaching of chalcopyrite concentrate from the location "Rudnik, Serbia". The samples from the flotation plant were treated with hydrogen peroxide in sulfuric acid. The influences of temperature, particle size, stirring speed, as well as the concentrations of hydrogen peroxide and sulfuric acid were followed and discussed. Hence, the main objective was to optimize the relevant conditions and to determine the reaction kinetics. It was remarked that the increase in temperature, hydrogen peroxide content, and sulfuric acid concentration, as well as the decrease in particle size and stirring speed, contribute to the dissolution of chalcopyrite. The dissolution kinetics follow a model controlled by diffusion, and the lixiviant diffusion controls the rate of reaction through the sulfur layer. Finally, the main characterization methods used to corroborate the obtained results were X-ray diffraction (XRD) as well as qualitative and quantitative light microscopy of the chalcopyrite concentrate samples and the leach residue.
PB  - MDPI, Basel
T2  - Metals
T1  - Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid
IS  - 11
VL  - 9
DO  - 10.3390/met9111173
ER  - 

@article{
author = "Sokić, Miroslav and Marković, Branislav and Stanković, Srđan and Karnberović, Željko and Štrbac, Nada and Manojlović, Vaso and Petronijević, Nela",
year = "2019",
abstract = "In ores, chalcopyrite is usually associated with other sulfide minerals, such as sphalerite, galena, and pyrite, in a dispersed form, with complex mineralogical structures. Concentrates obtained by flotation of such ores are unsuitable for pyrometallurgical processing owing to their poor quality and low metal recovery. This paper presents the leaching of chalcopyrite concentrate from the location "Rudnik, Serbia". The samples from the flotation plant were treated with hydrogen peroxide in sulfuric acid. The influences of temperature, particle size, stirring speed, as well as the concentrations of hydrogen peroxide and sulfuric acid were followed and discussed. Hence, the main objective was to optimize the relevant conditions and to determine the reaction kinetics. It was remarked that the increase in temperature, hydrogen peroxide content, and sulfuric acid concentration, as well as the decrease in particle size and stirring speed, contribute to the dissolution of chalcopyrite. The dissolution kinetics follow a model controlled by diffusion, and the lixiviant diffusion controls the rate of reaction through the sulfur layer. Finally, the main characterization methods used to corroborate the obtained results were X-ray diffraction (XRD) as well as qualitative and quantitative light microscopy of the chalcopyrite concentrate samples and the leach residue.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid",
number = "11",
volume = "9",
doi = "10.3390/met9111173"
}

Sokić, M., Marković, B., Stanković, S., Karnberović, Ž., Štrbac, N., Manojlović, V.,& Petronijević, N.. (2019). Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid. in Metals
MDPI, Basel., 9(11).
https://doi.org/10.3390/met9111173

Sokić M, Marković B, Stanković S, Karnberović Ž, Štrbac N, Manojlović V, Petronijević N. Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid. in Metals. 2019;9(11).
doi:10.3390/met9111173 .

Sokić, Miroslav, Marković, Branislav, Stanković, Srđan, Karnberović, Željko, Štrbac, Nada, Manojlović, Vaso, Petronijević, Nela, "Kinetics of Chalcopyrite Leaching by Hydrogen Peroxide in Sulfuric Acid" in Metals, 9, no. 11 (2019),
https://doi.org/10.3390/met9111173 . .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Radovanović, Dragana
AU  - Marković, Branislav
AU  - Stojanović, Jovica
AU  - Kamberović, Željko
AU  - Petronijević, Nela
AU  - Stanković, Srđan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4268
AB  - Since commissioning in 1961, the copper mine Majdanpek, a part of the Mining and Smelting Complex Bor (RTB Bor), produced approximately 378 million tons of flotation tailings. Semiquantitative mineralogical analysis of the flotation tailings revealed significant content of carbonate minerals (approximately 20-25 %), indicating high acid neutralization capacity. Also, approximately 70 % of copper is in the form of the oxide mineral cuprite (Cu2O). Copper can be easily leached from cuprite by using sulphuric acid. The RTB Bor copper smelter generates 8.7 m(3)h(-1) of extremely acidic waste effluent (142.4 kgm(-3) of sulphuric acid, pH - 0.464) with relatively high concentrations of dissolved metals and metalloids (Cu, Fe, Zn, Pb and As). The effluent is currently treated with hydrated lime. The present study focused on application of flotation tailings as a neutralizing agent for acidic effluents. Laboratory experiments followed by computer simulation of the industrial process showed that 99% of the acid can be neutralized with flotation tailings in a series of six reactors resulting in the final copper concentration of 1.55 gL(-1). Benefits of the proposed process are: lower environmental impact of the process and reduced costs of neutralization of the acidic effluent from the copper smelter.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Treatment of the acidic effluent from a copper smelter by flotation tailings
EP  - 124
IS  - 2
SP  - 115
VL  - 73
DO  - 10.2298/HEMIND181009010S
ER  - 

@article{
author = "Sokić, Miroslav and Radovanović, Dragana and Marković, Branislav and Stojanović, Jovica and Kamberović, Željko and Petronijević, Nela and Stanković, Srđan",
year = "2019",
abstract = "Since commissioning in 1961, the copper mine Majdanpek, a part of the Mining and Smelting Complex Bor (RTB Bor), produced approximately 378 million tons of flotation tailings. Semiquantitative mineralogical analysis of the flotation tailings revealed significant content of carbonate minerals (approximately 20-25 %), indicating high acid neutralization capacity. Also, approximately 70 % of copper is in the form of the oxide mineral cuprite (Cu2O). Copper can be easily leached from cuprite by using sulphuric acid. The RTB Bor copper smelter generates 8.7 m(3)h(-1) of extremely acidic waste effluent (142.4 kgm(-3) of sulphuric acid, pH - 0.464) with relatively high concentrations of dissolved metals and metalloids (Cu, Fe, Zn, Pb and As). The effluent is currently treated with hydrated lime. The present study focused on application of flotation tailings as a neutralizing agent for acidic effluents. Laboratory experiments followed by computer simulation of the industrial process showed that 99% of the acid can be neutralized with flotation tailings in a series of six reactors resulting in the final copper concentration of 1.55 gL(-1). Benefits of the proposed process are: lower environmental impact of the process and reduced costs of neutralization of the acidic effluent from the copper smelter.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Treatment of the acidic effluent from a copper smelter by flotation tailings",
pages = "124-115",
number = "2",
volume = "73",
doi = "10.2298/HEMIND181009010S"
}

Sokić, M., Radovanović, D., Marković, B., Stojanović, J., Kamberović, Ž., Petronijević, N.,& Stanković, S.. (2019). Treatment of the acidic effluent from a copper smelter by flotation tailings. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 73(2), 115-124.
https://doi.org/10.2298/HEMIND181009010S

Sokić M, Radovanović D, Marković B, Stojanović J, Kamberović Ž, Petronijević N, Stanković S. Treatment of the acidic effluent from a copper smelter by flotation tailings. in Hemijska industrija. 2019;73(2):115-124.
doi:10.2298/HEMIND181009010S .

Sokić, Miroslav, Radovanović, Dragana, Marković, Branislav, Stojanović, Jovica, Kamberović, Željko, Petronijević, Nela, Stanković, Srđan, "Treatment of the acidic effluent from a copper smelter by flotation tailings" in Hemijska industrija, 73, no. 2 (2019):115-124,
https://doi.org/10.2298/HEMIND181009010S . .

TY  - JOUR
AU  - Drah, Abdusalam
AU  - Kovačević, Tihomir
AU  - Rusmirović, Jelena
AU  - Tomić, Nataša
AU  - Brzić, Saša
AU  - Bogosavljavić, Marica
AU  - Marinković, Aleksandar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4168
AB  - Two types of alumina particles, commercial (c-Al2O3) and iron doped (Fe-Al2O3), were functionalized with 3-(aminopropyl)trimethoxysilane (one-step) and two-step consecutive process, i.e. firstly using 3-(aminopropyl)trimethoxysilane followed by methyl ester of linseed oil (biodiesel) to produce Al(2)O(3)ATPMS-BD reinforcement, respectively. The effect of modifier type and variable amount of alumina particles on the dynamical and mechanical properties of unsaturated polyester resin-based composites was studied. The highest improvement of the tensile strength and micro Vickers hardness, 78.1 and 163%, respectively, was obtained at 1.0 wt% of Fe-Al(2)O(3)APTMS-BD addition. The obtained multifunctional composites can be potentially applied in construction and mining industries.
PB  - Sage Publications Ltd, London
T2  - Journal of Composite Materials
T1  - Effect of surface activation of alumina particles on the performances of thermosetting-based composite materials
EP  - 2742
IS  - 19
SP  - 2727
VL  - 53
DO  - 10.1177/0021998319839133
ER  - 

@article{
author = "Drah, Abdusalam and Kovačević, Tihomir and Rusmirović, Jelena and Tomić, Nataša and Brzić, Saša and Bogosavljavić, Marica and Marinković, Aleksandar",
year = "2019",
abstract = "Two types of alumina particles, commercial (c-Al2O3) and iron doped (Fe-Al2O3), were functionalized with 3-(aminopropyl)trimethoxysilane (one-step) and two-step consecutive process, i.e. firstly using 3-(aminopropyl)trimethoxysilane followed by methyl ester of linseed oil (biodiesel) to produce Al(2)O(3)ATPMS-BD reinforcement, respectively. The effect of modifier type and variable amount of alumina particles on the dynamical and mechanical properties of unsaturated polyester resin-based composites was studied. The highest improvement of the tensile strength and micro Vickers hardness, 78.1 and 163%, respectively, was obtained at 1.0 wt% of Fe-Al(2)O(3)APTMS-BD addition. The obtained multifunctional composites can be potentially applied in construction and mining industries.",
publisher = "Sage Publications Ltd, London",
journal = "Journal of Composite Materials",
title = "Effect of surface activation of alumina particles on the performances of thermosetting-based composite materials",
pages = "2742-2727",
number = "19",
volume = "53",
doi = "10.1177/0021998319839133"
}

Drah, A., Kovačević, T., Rusmirović, J., Tomić, N., Brzić, S., Bogosavljavić, M.,& Marinković, A.. (2019). Effect of surface activation of alumina particles on the performances of thermosetting-based composite materials. in Journal of Composite Materials
Sage Publications Ltd, London., 53(19), 2727-2742.
https://doi.org/10.1177/0021998319839133

Drah A, Kovačević T, Rusmirović J, Tomić N, Brzić S, Bogosavljavić M, Marinković A. Effect of surface activation of alumina particles on the performances of thermosetting-based composite materials. in Journal of Composite Materials. 2019;53(19):2727-2742.
doi:10.1177/0021998319839133 .

Drah, Abdusalam, Kovačević, Tihomir, Rusmirović, Jelena, Tomić, Nataša, Brzić, Saša, Bogosavljavić, Marica, Marinković, Aleksandar, "Effect of surface activation of alumina particles on the performances of thermosetting-based composite materials" in Journal of Composite Materials, 53, no. 19 (2019):2727-2742,
https://doi.org/10.1177/0021998319839133 . .

TY  - JOUR
AU  - Kovačević, Tihomir
AU  - Rusmirović, Jelena
AU  - Tomić, Nataša
AU  - Mladenović, Goran
AU  - Milosević, Miloš
AU  - Mitrović, Nenad
AU  - Marinković, Aleksandar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4310
AB  - The investigation of the influence of acid/base treatment and addition level of non-metallic fractions (NMFs), obtained by processing of printed circuit boards, on the mechanical properties and shrinkage of unsaturated polyester resin (UPR)-based composites was main topic presented in this paper. NMF particles were treated using four different oxidative/etching agents: H2SO4/KMnO4 (NMF1), H2SO4/HNO3 (NMF2), HNO3 (NMF3), and NaOH (NMF4). Treated NMF(1-4) particles were characterized using fourier transform infrared, Boehm titration, optical microscopy and SEM analysis. Tensile strength and micro Vickers hardness of UPR/NMF(1-4) composites were the most improved with addition of 0.5wt% of filler, for 5.9-24.7%, in comparison to composite filled with non-treated NMF particles. Cross-linking density (nu), storage, and loss modulus (G' and G''), damping factor (tan delta) and glass transition temperature (T-g) of the composites were determined from the dynamic-mechanical analysis (DMA) testing. Shrinkage measurements, performed using Aramis 6.2.0, showed significant improvement in shrinkage reducing, for 17.8-30.6%, by introduction the oxidized NMF particles. Qualitative/quantitative evaluation of NMF(1-4) surface functionalities helped in understanding their influences on mechanical, DMA and shrinkage properties change of studied composites. POLYM. COMPOS., 40:1170-1186, 2019.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - Effects of oxidized/treated non-metallic fillers obtained from waste printed circuit boards on mechanical properties and shrinkage of unsaturated polyester-based composites
EP  - 1186
IS  - 3
SP  - 1170
VL  - 40
DO  - 10.1002/pc.24827
ER  - 

@article{
author = "Kovačević, Tihomir and Rusmirović, Jelena and Tomić, Nataša and Mladenović, Goran and Milosević, Miloš and Mitrović, Nenad and Marinković, Aleksandar",
year = "2019",
abstract = "The investigation of the influence of acid/base treatment and addition level of non-metallic fractions (NMFs), obtained by processing of printed circuit boards, on the mechanical properties and shrinkage of unsaturated polyester resin (UPR)-based composites was main topic presented in this paper. NMF particles were treated using four different oxidative/etching agents: H2SO4/KMnO4 (NMF1), H2SO4/HNO3 (NMF2), HNO3 (NMF3), and NaOH (NMF4). Treated NMF(1-4) particles were characterized using fourier transform infrared, Boehm titration, optical microscopy and SEM analysis. Tensile strength and micro Vickers hardness of UPR/NMF(1-4) composites were the most improved with addition of 0.5wt% of filler, for 5.9-24.7%, in comparison to composite filled with non-treated NMF particles. Cross-linking density (nu), storage, and loss modulus (G' and G''), damping factor (tan delta) and glass transition temperature (T-g) of the composites were determined from the dynamic-mechanical analysis (DMA) testing. Shrinkage measurements, performed using Aramis 6.2.0, showed significant improvement in shrinkage reducing, for 17.8-30.6%, by introduction the oxidized NMF particles. Qualitative/quantitative evaluation of NMF(1-4) surface functionalities helped in understanding their influences on mechanical, DMA and shrinkage properties change of studied composites. POLYM. COMPOS., 40:1170-1186, 2019.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "Effects of oxidized/treated non-metallic fillers obtained from waste printed circuit boards on mechanical properties and shrinkage of unsaturated polyester-based composites",
pages = "1186-1170",
number = "3",
volume = "40",
doi = "10.1002/pc.24827"
}

Kovačević, T., Rusmirović, J., Tomić, N., Mladenović, G., Milosević, M., Mitrović, N.,& Marinković, A.. (2019). Effects of oxidized/treated non-metallic fillers obtained from waste printed circuit boards on mechanical properties and shrinkage of unsaturated polyester-based composites. in Polymer Composites
Wiley, Hoboken., 40(3), 1170-1186.
https://doi.org/10.1002/pc.24827

Kovačević T, Rusmirović J, Tomić N, Mladenović G, Milosević M, Mitrović N, Marinković A. Effects of oxidized/treated non-metallic fillers obtained from waste printed circuit boards on mechanical properties and shrinkage of unsaturated polyester-based composites. in Polymer Composites. 2019;40(3):1170-1186.
doi:10.1002/pc.24827 .

Kovačević, Tihomir, Rusmirović, Jelena, Tomić, Nataša, Mladenović, Goran, Milosević, Miloš, Mitrović, Nenad, Marinković, Aleksandar, "Effects of oxidized/treated non-metallic fillers obtained from waste printed circuit boards on mechanical properties and shrinkage of unsaturated polyester-based composites" in Polymer Composites, 40, no. 3 (2019):1170-1186,
https://doi.org/10.1002/pc.24827 . .

TY  - JOUR
AU  - Kamberović, Željko
AU  - Ranitović, Milisav
AU  - Korać, Marija
AU  - Anđić, Zoran
AU  - Gajić, Nataša
AU  - Đokić, Jovana
AU  - Jevtić, Sanja
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3896
AB  - This paper presents an experimentally-proved hydrometallurgical process for selective metals recovery from the waste-printed circuit boards (WPCBs) using a combination of conventional and time-saving methods: leaching, cementation, precipitation, reduction and electrowinning. According to the results obtained in the laboratory tests, 92.4% Cu, 98.5% Pb, 96.8% Ag and over 99% Au could be selectively leached and recovered using mineral acids: sulfuric, nitric and aqua regia. Problematic tin recovery was addressed with comprehensive theoretical and experimental work, so 55.4% of Sn could be recovered through the novel physical method, which consists of two-step phase separation. Based on the results, an integral hydrometallurgical route for selective base and precious metals recovery though consecutive steps, (i) Cu, (ii) Sn, (iii) Pb and Ag, and (iv) Au, was developed. The route was tested at scaled-up laboratory level, confirming feasibility of the process and efficiencies of metals recovery. According to the obtained results, the proposed hydrometallurgical route represents an innovative and promising method for selective metals recovery from WPCBs, particularly applicable in small scale hydrometallurgical environments, focused on medium and high grade WPCBs recycling.
PB  - MDPI, Basel
T2  - Metals
T1  - Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards
IS  - 6
VL  - 8
DO  - 10.3390/met8060441
ER  - 

@article{
author = "Kamberović, Željko and Ranitović, Milisav and Korać, Marija and Anđić, Zoran and Gajić, Nataša and Đokić, Jovana and Jevtić, Sanja",
year = "2018",
abstract = "This paper presents an experimentally-proved hydrometallurgical process for selective metals recovery from the waste-printed circuit boards (WPCBs) using a combination of conventional and time-saving methods: leaching, cementation, precipitation, reduction and electrowinning. According to the results obtained in the laboratory tests, 92.4% Cu, 98.5% Pb, 96.8% Ag and over 99% Au could be selectively leached and recovered using mineral acids: sulfuric, nitric and aqua regia. Problematic tin recovery was addressed with comprehensive theoretical and experimental work, so 55.4% of Sn could be recovered through the novel physical method, which consists of two-step phase separation. Based on the results, an integral hydrometallurgical route for selective base and precious metals recovery though consecutive steps, (i) Cu, (ii) Sn, (iii) Pb and Ag, and (iv) Au, was developed. The route was tested at scaled-up laboratory level, confirming feasibility of the process and efficiencies of metals recovery. According to the obtained results, the proposed hydrometallurgical route represents an innovative and promising method for selective metals recovery from WPCBs, particularly applicable in small scale hydrometallurgical environments, focused on medium and high grade WPCBs recycling.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards",
number = "6",
volume = "8",
doi = "10.3390/met8060441"
}

Kamberović, Ž., Ranitović, M., Korać, M., Anđić, Z., Gajić, N., Đokić, J.,& Jevtić, S.. (2018). Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards. in Metals
MDPI, Basel., 8(6).
https://doi.org/10.3390/met8060441

Kamberović Ž, Ranitović M, Korać M, Anđić Z, Gajić N, Đokić J, Jevtić S. Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards. in Metals. 2018;8(6).
doi:10.3390/met8060441 .

Kamberović, Željko, Ranitović, Milisav, Korać, Marija, Anđić, Zoran, Gajić, Nataša, Đokić, Jovana, Jevtić, Sanja, "Hydrometallurgical Process for Selective Metals Recovery from Waste-Printed Circuit Boards" in Metals, 8, no. 6 (2018),
https://doi.org/10.3390/met8060441 . .

TY  - CONF
AU  - Nikolić, Vesna
AU  - Anđić, Zoran
AU  - Radovanović, Dragana
AU  - Uljarević, Jelena
AU  - Stevanović, Maja
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5964
AB  - In this research, catalytic properties of Ni-Pd/Al2O3 catalyst synthesized by aerosol impregnationmethod were examined in the dry methane reforming process. First, reticulated ceramic foamswere impregnated by ultrasonically nebulized solution of corresponding chlorides and dried. Thecatalyst was activated by direct hydrogen reduction, without calcination, at only 533 K. Thereforming test was carried out at temperatures of 873, 973 and 1023 K. Since CO and H2 are themain products of the dry methane reforming, yields of those gasses were measured and obtainedresults were a base for conclusions about selectivity, activity and stability of the catalyst.Acknowledgement: This work was financially supported by the Ministry of Education, Scienceand Technological Development of the Republic of Serbia, Project No. TR - 34033.
PB  - Beograd : Materials Research Society of Serbia
C3  - Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018
T1  - Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming
EP  - 87
SP  - 87
VL  - 44
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5053
ER  - 

@conference{
author = "Nikolić, Vesna and Anđić, Zoran and Radovanović, Dragana and Uljarević, Jelena and Stevanović, Maja",
year = "2018",
abstract = "In this research, catalytic properties of Ni-Pd/Al2O3 catalyst synthesized by aerosol impregnationmethod were examined in the dry methane reforming process. First, reticulated ceramic foamswere impregnated by ultrasonically nebulized solution of corresponding chlorides and dried. Thecatalyst was activated by direct hydrogen reduction, without calcination, at only 533 K. Thereforming test was carried out at temperatures of 873, 973 and 1023 K. Since CO and H2 are themain products of the dry methane reforming, yields of those gasses were measured and obtainedresults were a base for conclusions about selectivity, activity and stability of the catalyst.Acknowledgement: This work was financially supported by the Ministry of Education, Scienceand Technological Development of the Republic of Serbia, Project No. TR - 34033.",
publisher = "Beograd : Materials Research Society of Serbia",
journal = "Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018",
title = "Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming",
pages = "87-87",
volume = "44",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5053"
}

Nikolić, V., Anđić, Z., Radovanović, D., Uljarević, J.,& Stevanović, M.. (2018). Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming. in Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018
Beograd : Materials Research Society of Serbia., 44, 87-87.
https://hdl.handle.net/21.15107/rcub_cherry_5053

Nikolić V, Anđić Z, Radovanović D, Uljarević J, Stevanović M. Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming. in Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018. 2018;44:87-87.
https://hdl.handle.net/21.15107/rcub_cherry_5053 .

Nikolić, Vesna, Anđić, Zoran, Radovanović, Dragana, Uljarević, Jelena, Stevanović, Maja, "Ni-Pd/Al2O3 catalyst in the form of foam for dry methane reforming" in Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018, 44 (2018):87-87,
https://hdl.handle.net/21.15107/rcub_cherry_5053 .

TY  - THES
AU  - Radovanović, Dragana
PY  - 2018
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=5696
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:17427/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=49979151
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4668
AB  - Stabilization and solidification process is considered to be the best available technique for the treatment of industrial waste sludge and solid waste. This PhD thesis presents investigations of development and optimization of the S/S process of waste sludge generated during the wastewater treatment in primary copper smelter, as well as the stabilization process of clinker formed during the treatment of waste sludges with copper content from hydrometallurgical zinc processing which are characterized by a high content of base and toxic metals (Cu, Zn, Pb, Ni i As). The optimization of the S/S process of wastewater treatment sludge from primary copper smelter is done by varying the ratio sludge/binder and the composition of the binder (the agent for stabilization). Fly ash (FA), individually or in mixtures with hydrated lime (HL) and composite Portland cement (PC), was investigated as the stabilization agent. The efficiency of the S/S process is determined by measuring the unconfined compressive strength (UCS) and leaching stability of solidificates by using two standard leaching tests: TCLP and EN 12457-4. The two leaching tests gave different classification of the same treated waste as hazardous or non-hazardous. For that reason the setting of a long-term leaching test under the real environmental conditions is proposed and applied within the PhD thesis. The test includes exposure of solidificates to the effect of atmospheric water during one year and collection of drainage water during the summer and winter season in order to determine a more realistic assessment of the stability of the treated waste. It is determined that the leaching level of contaminants depends on the buffer capacity of the solidificates and it was analyzed by using the ANC test. Phases in the solidified structure that caused the differences in the UCS and leaching stability between the obtained solidificates were not detected in the mineralogical analysis done by the XRD method due to the generally amorphous structure of the solidified matrix. Differential ANC analysis (d-ANC) is an effective alternative in examining the solidified structure, and its results are paired with Eh-pH diagrams, which is a novelty in the application of this analysis presented in the PhD thesis. The application of the modified d-ANC analysis determined the presence of unreacted calcium(II)-hydroxide added in excess, which caused an increase of the buffer capacity and leaching stability of solidificates, but also a decrease of the UCS...
AB  - Proces stabilizacije/solidifikacije (S/S) se smatra najboljom dostupnom tehnikom za tretman industrijskog muljevitog i čvrstog otpada. U okviru disertacije ispitivan je razvoj i optimizacija S/S procesa otpadnog mulja koji nastaje tretmanom otpadne vode iz primarne topionice bakra, kao i stabilizacija klinkera tokom tretmana otpadnih muljeva iz hidrometaluškog procesa dobijanja cinka koji se odlikuju visokim sadržajem osnovnih i toksičnih metala (Cu, Zn, Pb, Ni i As). Optimizacija S/S procesa otpadnog mulja iz primarne topionice bakra je vršena variranjem odnosa mulj/agens za stabilizaciju i sastava agensa. Kao agens za stabilizaciju ispitivan je leteći pepeo u smešama sa kalcijum(II)-hidroksidom i kompozitnim portland cementom. Efikasnost S/S procesa je određena merenjem pritisne čvrstoće i stabilnosti solidifikata na luženje kontaminenata upotrebom dva standardna testa: TCLP i EN 12457-4. Kako su primenjeni standardni testovi dali različitu klasifikaciju pojedinih solidifikata kao opasnog ili neopasnog otpada, u disertaciji je predložena i primenjena postavka dugoročnog testa luženja pod realnim uslovima sredine koji se sastoji u izlaganju solidifikata uticaju atmosferalija tokom godinu dana i skupljanju drenažne vode tokom zimskog i letnjeg perioda, a u cilju određivanja realnije ocene stabilnosti tretiranog otpada. Utvrđeno je da nivo izluženja kontaminenata zavisi od puferskog kapaciteta solidifikata, određenog primenom ANC testa. Faze u strukturi solidifikata koje su uzrokovale razlike u pritisnoj čvrstoći i stabilnosti na luženje između dobijenih solidifikata nisu otkrivene tokom mineraloške analize primenom XRD metode usled generalno amorfne strukture solidifikovane matrice. Diferencijalna ANC analiza (d-ANC) predstavlja efikasnu alternativu u ispitivanju strukture solidifikata, a u disertaciji su njeni rezultati upareni sa Eh-pH dijagramima što predstavlja novitet u primeni ove analize. Primena modifikovane d-ANC analize je determinisala prisustvo neizreagovanog kalcijum(II)-hidroksida, dodatog u višku, koji uzrokuje povećanje puferskog kapaciteta i stabilnost na luženje solidifikata, ali i pad pritisne čvrstoće. Prisustvo ove faze je potvrđeno SEM analizom uzoraka solidifikata...
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Stabilization and solidification process of hazardous sludge generated during wastewater treatment process
T1  - Proces stabilizacije i solidifikacije opasnog mulja obrazovanog nakon tretmana otpadne vode u primarnoj metalurgiji bakra
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4668
ER  - 

@phdthesis{
author = "Radovanović, Dragana",
year = "2018",
abstract = "Stabilization and solidification process is considered to be the best available technique for the treatment of industrial waste sludge and solid waste. This PhD thesis presents investigations of development and optimization of the S/S process of waste sludge generated during the wastewater treatment in primary copper smelter, as well as the stabilization process of clinker formed during the treatment of waste sludges with copper content from hydrometallurgical zinc processing which are characterized by a high content of base and toxic metals (Cu, Zn, Pb, Ni i As). The optimization of the S/S process of wastewater treatment sludge from primary copper smelter is done by varying the ratio sludge/binder and the composition of the binder (the agent for stabilization). Fly ash (FA), individually or in mixtures with hydrated lime (HL) and composite Portland cement (PC), was investigated as the stabilization agent. The efficiency of the S/S process is determined by measuring the unconfined compressive strength (UCS) and leaching stability of solidificates by using two standard leaching tests: TCLP and EN 12457-4. The two leaching tests gave different classification of the same treated waste as hazardous or non-hazardous. For that reason the setting of a long-term leaching test under the real environmental conditions is proposed and applied within the PhD thesis. The test includes exposure of solidificates to the effect of atmospheric water during one year and collection of drainage water during the summer and winter season in order to determine a more realistic assessment of the stability of the treated waste. It is determined that the leaching level of contaminants depends on the buffer capacity of the solidificates and it was analyzed by using the ANC test. Phases in the solidified structure that caused the differences in the UCS and leaching stability between the obtained solidificates were not detected in the mineralogical analysis done by the XRD method due to the generally amorphous structure of the solidified matrix. Differential ANC analysis (d-ANC) is an effective alternative in examining the solidified structure, and its results are paired with Eh-pH diagrams, which is a novelty in the application of this analysis presented in the PhD thesis. The application of the modified d-ANC analysis determined the presence of unreacted calcium(II)-hydroxide added in excess, which caused an increase of the buffer capacity and leaching stability of solidificates, but also a decrease of the UCS..., Proces stabilizacije/solidifikacije (S/S) se smatra najboljom dostupnom tehnikom za tretman industrijskog muljevitog i čvrstog otpada. U okviru disertacije ispitivan je razvoj i optimizacija S/S procesa otpadnog mulja koji nastaje tretmanom otpadne vode iz primarne topionice bakra, kao i stabilizacija klinkera tokom tretmana otpadnih muljeva iz hidrometaluškog procesa dobijanja cinka koji se odlikuju visokim sadržajem osnovnih i toksičnih metala (Cu, Zn, Pb, Ni i As). Optimizacija S/S procesa otpadnog mulja iz primarne topionice bakra je vršena variranjem odnosa mulj/agens za stabilizaciju i sastava agensa. Kao agens za stabilizaciju ispitivan je leteći pepeo u smešama sa kalcijum(II)-hidroksidom i kompozitnim portland cementom. Efikasnost S/S procesa je određena merenjem pritisne čvrstoće i stabilnosti solidifikata na luženje kontaminenata upotrebom dva standardna testa: TCLP i EN 12457-4. Kako su primenjeni standardni testovi dali različitu klasifikaciju pojedinih solidifikata kao opasnog ili neopasnog otpada, u disertaciji je predložena i primenjena postavka dugoročnog testa luženja pod realnim uslovima sredine koji se sastoji u izlaganju solidifikata uticaju atmosferalija tokom godinu dana i skupljanju drenažne vode tokom zimskog i letnjeg perioda, a u cilju određivanja realnije ocene stabilnosti tretiranog otpada. Utvrđeno je da nivo izluženja kontaminenata zavisi od puferskog kapaciteta solidifikata, određenog primenom ANC testa. Faze u strukturi solidifikata koje su uzrokovale razlike u pritisnoj čvrstoći i stabilnosti na luženje između dobijenih solidifikata nisu otkrivene tokom mineraloške analize primenom XRD metode usled generalno amorfne strukture solidifikovane matrice. Diferencijalna ANC analiza (d-ANC) predstavlja efikasnu alternativu u ispitivanju strukture solidifikata, a u disertaciji su njeni rezultati upareni sa Eh-pH dijagramima što predstavlja novitet u primeni ove analize. Primena modifikovane d-ANC analize je determinisala prisustvo neizreagovanog kalcijum(II)-hidroksida, dodatog u višku, koji uzrokuje povećanje puferskog kapaciteta i stabilnost na luženje solidifikata, ali i pad pritisne čvrstoće. Prisustvo ove faze je potvrđeno SEM analizom uzoraka solidifikata...",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Stabilization and solidification process of hazardous sludge generated during wastewater treatment process, Proces stabilizacije i solidifikacije opasnog mulja obrazovanog nakon tretmana otpadne vode u primarnoj metalurgiji bakra",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4668"
}

Radovanović, D.. (2018). Stabilization and solidification process of hazardous sludge generated during wastewater treatment process. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_4668

Radovanović D. Stabilization and solidification process of hazardous sludge generated during wastewater treatment process. 2018;.
https://hdl.handle.net/21.15107/rcub_technorep_4668 .

Radovanović, Dragana, "Stabilization and solidification process of hazardous sludge generated during wastewater treatment process" (2018),
https://hdl.handle.net/21.15107/rcub_technorep_4668 .

TY  - CONF
AU  - Dimitrijević, Stevan
AU  - Kamberović, Željko
AU  - Ranitović, Milisav
AU  - Dimitrijević, Silvana
AU  - Korać, Marija
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6979
AB  - This paper presents the method for preparation the fine Ag powder with a particles size smaller than 2 μm. Reduction was performed from the nitrate solution directly by the vigorous stirring at the room temperature by the use of ascorbic acid as the reducing agent and polyvinylpyridine as the protecting agent. Silver powder with nearly spherical particles and size of micrometers were prepared by the chemical reduction and characterized by the scanning electron microscope (SEM). The SEM analysis has shown that preferred size, less than 2 μm was obtained. Silver with purity of 99.9% or more was obtained.
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia
T1  - Silver micro-sized powder obtained by the chemical reduction
EP  - 278
SP  - 273
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6979
ER  - 

@conference{
author = "Dimitrijević, Stevan and Kamberović, Željko and Ranitović, Milisav and Dimitrijević, Silvana and Korać, Marija",
year = "2018",
abstract = "This paper presents the method for preparation the fine Ag powder with a particles size smaller than 2 μm. Reduction was performed from the nitrate solution directly by the vigorous stirring at the room temperature by the use of ascorbic acid as the reducing agent and polyvinylpyridine as the protecting agent. Silver powder with nearly spherical particles and size of micrometers were prepared by the chemical reduction and characterized by the scanning electron microscope (SEM). The SEM analysis has shown that preferred size, less than 2 μm was obtained. Silver with purity of 99.9% or more was obtained.",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia",
title = "Silver micro-sized powder obtained by the chemical reduction",
pages = "278-273",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6979"
}

Dimitrijević, S., Kamberović, Ž., Ranitović, M., Dimitrijević, S.,& Korać, M.. (2018). Silver micro-sized powder obtained by the chemical reduction. in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia
Bor : Mining and Metallurgy Institute., 273-278.
https://hdl.handle.net/21.15107/rcub_technorep_6979

Dimitrijević S, Kamberović Ž, Ranitović M, Dimitrijević S, Korać M. Silver micro-sized powder obtained by the chemical reduction. in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia. 2018;:273-278.
https://hdl.handle.net/21.15107/rcub_technorep_6979 .

Dimitrijević, Stevan, Kamberović, Željko, Ranitović, Milisav, Dimitrijević, Silvana, Korać, Marija, "Silver micro-sized powder obtained by the chemical reduction" in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia (2018):273-278,
https://hdl.handle.net/21.15107/rcub_technorep_6979 .

TY  - CONF
AU  - Vurdelja, Borislava
AU  - Veljković, Filip
AU  - Rajčić, Boris
AU  - Dimitrijević, Silvana
AU  - Dimitrijević, Stevan
AU  - Kamberović, Željko J.
AU  - Veličković, Suzana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6981
AB  - Precise, direct and fast methods for characterization the anodic films still have to be developed, since the conventional methods cannot be accelerated beyond the certain limits. The present work uses a laser desorption/ionization mass spectrometry (LDI MS) to characterize the chemical composition of anodic film on the Ag60Cu26Zn14 alloy. The positive mode mass spectra, measured from the propan-2-ol solution of corrosion film, shows the formation of three major signals originating from the Ag+, CuCl2CuCl(H2O)+ and Cu(OH)2(CuCl)3+ species. The other ions, such as Cu+, Cu(H2O)+, CuO(H2O)+, AgCl(H2O)+, Cu(ClO)2+, AgCuCl+, Ag2Cl(H2O)3+, have a much lower intensity. It has been noted that the ion species of zinc with chlorine or oxygen where not detected.
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia
T1  - CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY
EP  - 264
SP  - 261
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6981
ER  - 

@conference{
author = "Vurdelja, Borislava and Veljković, Filip and Rajčić, Boris and Dimitrijević, Silvana and Dimitrijević, Stevan and Kamberović, Željko J. and Veličković, Suzana",
year = "2018",
abstract = "Precise, direct and fast methods for characterization the anodic films still have to be developed, since the conventional methods cannot be accelerated beyond the certain limits. The present work uses a laser desorption/ionization mass spectrometry (LDI MS) to characterize the chemical composition of anodic film on the Ag60Cu26Zn14 alloy. The positive mode mass spectra, measured from the propan-2-ol solution of corrosion film, shows the formation of three major signals originating from the Ag+, CuCl2CuCl(H2O)+ and Cu(OH)2(CuCl)3+ species. The other ions, such as Cu+, Cu(H2O)+, CuO(H2O)+, AgCl(H2O)+, Cu(ClO)2+, AgCuCl+, Ag2Cl(H2O)3+, have a much lower intensity. It has been noted that the ion species of zinc with chlorine or oxygen where not detected.",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia",
title = "CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY",
pages = "264-261",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6981"
}

Vurdelja, B., Veljković, F., Rajčić, B., Dimitrijević, S., Dimitrijević, S., Kamberović, Ž. J.,& Veličković, S.. (2018). CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY. in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia
Bor : Mining and Metallurgy Institute., 261-264.
https://hdl.handle.net/21.15107/rcub_technorep_6981

Vurdelja B, Veljković F, Rajčić B, Dimitrijević S, Dimitrijević S, Kamberović ŽJ, Veličković S. CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY. in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia. 2018;:261-264.
https://hdl.handle.net/21.15107/rcub_technorep_6981 .

Vurdelja, Borislava, Veljković, Filip, Rajčić, Boris, Dimitrijević, Silvana, Dimitrijević, Stevan, Kamberović, Željko J., Veličković, Suzana, "CHARACTERIZATION OF THE ANODIC FILMS FORMED ON THE Ag60Cu26Zn14 ALLOY BY THE LDI MASS SPECTROMETRY" in Proceedings / 50th International October Conference on Mining and Metallurgy - IOC 2018, 30th September - 3rd October 2018 Bor Lake, Serbia (2018):261-264,
https://hdl.handle.net/21.15107/rcub_technorep_6981 .