TY  - JOUR
AU  - Petrović, Sanja J.
AU  - Bogdanović, Grozdanka D.
AU  - Antonijević, Milan M.
AU  - Vukčević, Marija
AU  - Kovačević, Renata
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6989
AB  - Research on chalcopyrite leaching represents a great challenge, given its importance as one of the most abundant copper minerals and its significant role in global copper extraction. This study aimed to evaluate the effects of different parameters on chalcopyrite leaching by hydrogen peroxide as a strong oxidizing reagent in sulfuric acid solution. A series of leaching tests were carried out to investigate the effect of the solid/liquid ratio, stirring speed, temperature, oxidant and acid concentrations, and lixiviant dosing method on copper extraction from chalcopyrite concentrate. The catalytic decomposition of hydrogen peroxide occurred in the investigated leaching system, as reflected in the obtained metal extraction values. Copper extraction was increased in the first 60 min of the reaction, after which it essentially ceased. The maximum final copper extraction of 64.5% was attained with 3.0 mol/L H2O2 in 3.0 mol/L H2SO4 at a temperature of 40 °C after 120 min of reaction. Due to the catalytic decomposition of hydrogen peroxide in the examined leaching system, the leaching experiment was performed with the periodic addition of lixiviant at specific time intervals as well. The dissolution process was described by the first-order kinetics equation with an apparent activation energy of ~39 kJ/mol. Finally, XRD and SEM-EDS analyses were used to characterize the leached residue, and the results showed that the formation of elemental sulfur on the chalcopyrite surface affected the dissolution process.
PB  - MDPI
T2  - Metals
T1  - The Extraction of Copper from Chalcopyrite Concentrate with Hydrogen Peroxide in Sulfuric Acid Solution
IS  - 11
SP  - 1818
VL  - 13
DO  - 10.3390/met13111818
ER  - 

@article{
author = "Petrović, Sanja J. and Bogdanović, Grozdanka D. and Antonijević, Milan M. and Vukčević, Marija and Kovačević, Renata",
year = "2023",
abstract = "Research on chalcopyrite leaching represents a great challenge, given its importance as one of the most abundant copper minerals and its significant role in global copper extraction. This study aimed to evaluate the effects of different parameters on chalcopyrite leaching by hydrogen peroxide as a strong oxidizing reagent in sulfuric acid solution. A series of leaching tests were carried out to investigate the effect of the solid/liquid ratio, stirring speed, temperature, oxidant and acid concentrations, and lixiviant dosing method on copper extraction from chalcopyrite concentrate. The catalytic decomposition of hydrogen peroxide occurred in the investigated leaching system, as reflected in the obtained metal extraction values. Copper extraction was increased in the first 60 min of the reaction, after which it essentially ceased. The maximum final copper extraction of 64.5% was attained with 3.0 mol/L H2O2 in 3.0 mol/L H2SO4 at a temperature of 40 °C after 120 min of reaction. Due to the catalytic decomposition of hydrogen peroxide in the examined leaching system, the leaching experiment was performed with the periodic addition of lixiviant at specific time intervals as well. The dissolution process was described by the first-order kinetics equation with an apparent activation energy of ~39 kJ/mol. Finally, XRD and SEM-EDS analyses were used to characterize the leached residue, and the results showed that the formation of elemental sulfur on the chalcopyrite surface affected the dissolution process.",
publisher = "MDPI",
journal = "Metals",
title = "The Extraction of Copper from Chalcopyrite Concentrate with Hydrogen Peroxide in Sulfuric Acid Solution",
number = "11",
pages = "1818",
volume = "13",
doi = "10.3390/met13111818"
}

Petrović, S. J., Bogdanović, G. D., Antonijević, M. M., Vukčević, M.,& Kovačević, R.. (2023). The Extraction of Copper from Chalcopyrite Concentrate with Hydrogen Peroxide in Sulfuric Acid Solution. in Metals
MDPI., 13(11), 1818.
https://doi.org/10.3390/met13111818

Petrović SJ, Bogdanović GD, Antonijević MM, Vukčević M, Kovačević R. The Extraction of Copper from Chalcopyrite Concentrate with Hydrogen Peroxide in Sulfuric Acid Solution. in Metals. 2023;13(11):1818.
doi:10.3390/met13111818 .

Petrović, Sanja J., Bogdanović, Grozdanka D., Antonijević, Milan M., Vukčević, Marija, Kovačević, Renata, "The Extraction of Copper from Chalcopyrite Concentrate with Hydrogen Peroxide in Sulfuric Acid Solution" in Metals, 13, no. 11 (2023):1818,
https://doi.org/10.3390/met13111818 . .

TY  - JOUR
AU  - Veljković, Filip M.
AU  - Dimitrijević, Stevan P.
AU  - Dimitrijević, Silvana B.
AU  - Vurdelja, Borislava D.
AU  - Matović, Branko Z.
AU  - Stoiljković, Milovan M.
AU  - Kamberović, Željko J.
AU  - Veličković, Suzana R.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5317
AB  - This work presents the perspective of applying the laser desorption/ionization mass spectrometry (LDI MS) for characterization the anode film of the Ag60Cu26Zn14, Ag58.5Cu31.5Pd10, and Ag63Cu27In10 alloys (at high concentrations of chloride ions in solutions). The reference LDI mass spectra of anode films of pure Ag and Cu have been used for the identification of product corrosion. Knowing the clusters detected in the reference spectra lead to the facilitating identification of the LDI mass spectrum of the sample and reduces the analysis time. The LDI MS analysis of these alloys revealed that the predominant corrosion product are AgCl (from AgnCln+1−/+, n = 1–3), and CuCl (from “superhalogen” CumCln− clusters, m = 1–2, n = 2–6); it also revealed Cu2(OH)3Cl (from Cu2(OH)(H2O)2+) and Cu2O (from Cu(H2O)+, Cu2O doped with chlorine). These results are in accordance with the X-ray diffraction and Raman analysis. The LDI MS spectra of alloys contain the additional peaks formed due to the mutual influences of different metals in the alloys (AgCuCl3− (AgCl-CuCl2−), AgCu2Cl4− (AgCl-CuCl-CuCl2−), and Ag2CuCl4− (AgCl-AgCl-CuCl−), which is consistent with the identified corrosion products. It should be noted that the LDI MS suggest the presence of CuCl2, which can be interpreted as the corrosion products retained in the porous films of alloys, and not detected by the other methods due to a small amount. The future theoretical and experimental studies of metal clusters, significant for metallurgy, can contribute that the LDI MS is becoming a powerful analytical tool for characterization the metal surfaces.
PB  - Elsevier B.V.
T2  - Arabian Journal of Chemistry
T1  - Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system
IS  - 2
SP  - 104461
VL  - 16
DO  - 10.1016/j.arabjc.2022.104461
ER  - 

@article{
author = "Veljković, Filip M. and Dimitrijević, Stevan P. and Dimitrijević, Silvana B. and Vurdelja, Borislava D. and Matović, Branko Z. and Stoiljković, Milovan M. and Kamberović, Željko J. and Veličković, Suzana R.",
year = "2023",
abstract = "This work presents the perspective of applying the laser desorption/ionization mass spectrometry (LDI MS) for characterization the anode film of the Ag60Cu26Zn14, Ag58.5Cu31.5Pd10, and Ag63Cu27In10 alloys (at high concentrations of chloride ions in solutions). The reference LDI mass spectra of anode films of pure Ag and Cu have been used for the identification of product corrosion. Knowing the clusters detected in the reference spectra lead to the facilitating identification of the LDI mass spectrum of the sample and reduces the analysis time. The LDI MS analysis of these alloys revealed that the predominant corrosion product are AgCl (from AgnCln+1−/+, n = 1–3), and CuCl (from “superhalogen” CumCln− clusters, m = 1–2, n = 2–6); it also revealed Cu2(OH)3Cl (from Cu2(OH)(H2O)2+) and Cu2O (from Cu(H2O)+, Cu2O doped with chlorine). These results are in accordance with the X-ray diffraction and Raman analysis. The LDI MS spectra of alloys contain the additional peaks formed due to the mutual influences of different metals in the alloys (AgCuCl3− (AgCl-CuCl2−), AgCu2Cl4− (AgCl-CuCl-CuCl2−), and Ag2CuCl4− (AgCl-AgCl-CuCl−), which is consistent with the identified corrosion products. It should be noted that the LDI MS suggest the presence of CuCl2, which can be interpreted as the corrosion products retained in the porous films of alloys, and not detected by the other methods due to a small amount. The future theoretical and experimental studies of metal clusters, significant for metallurgy, can contribute that the LDI MS is becoming a powerful analytical tool for characterization the metal surfaces.",
publisher = "Elsevier B.V.",
journal = "Arabian Journal of Chemistry",
title = "Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system",
number = "2",
pages = "104461",
volume = "16",
doi = "10.1016/j.arabjc.2022.104461"
}

Veljković, F. M., Dimitrijević, S. P., Dimitrijević, S. B., Vurdelja, B. D., Matović, B. Z., Stoiljković, M. M., Kamberović, Ž. J.,& Veličković, S. R.. (2023). Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system. in Arabian Journal of Chemistry
Elsevier B.V.., 16(2), 104461.
https://doi.org/10.1016/j.arabjc.2022.104461

Veljković FM, Dimitrijević SP, Dimitrijević SB, Vurdelja BD, Matović BZ, Stoiljković MM, Kamberović ŽJ, Veličković SR. Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system. in Arabian Journal of Chemistry. 2023;16(2):104461.
doi:10.1016/j.arabjc.2022.104461 .

Veljković, Filip M., Dimitrijević, Stevan P., Dimitrijević, Silvana B., Vurdelja, Borislava D., Matović, Branko Z., Stoiljković, Milovan M., Kamberović, Željko J., Veličković, Suzana R., "Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system" in Arabian Journal of Chemistry, 16, no. 2 (2023):104461,
https://doi.org/10.1016/j.arabjc.2022.104461 . .

TY  - JOUR
AU  - Janošević, Miloš
AU  - Conić, Vesna
AU  - Božić, Dragana
AU  - Avramović, Ljiljana
AU  - Jovanović, Ivana
AU  - Kamberović, Željko
AU  - Marjanović, Saša
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6376
AB  - The processing of zinc ore using hydrometallurgical methods leads to the formation and accumulation of a by-product called jarosite, which contains concentrated precious metals. In this study, we propose the recovery of In and its separation from Cu, Zn, Fe, Pb, and Ag. This study also presents a proposal for a new technological procedure for jarosite treatment. First we roasted the jarosite, and then the calcine collected was leached in water. The leaching extraction values obtained for Cu, Zn, Fe, and In were 91.07%, 91.97%, 9.60%, and 100.0%, respectively. Following the leaching of the roasted material in water, Pb, Ag, and most of the Fe obtained remained in the solid residue. The leaching solution was treated further by a precipitation process using NaOH, where In and Fe were precipitated and consequently separated from Cu and Zn. The In (OH)3 and Fe(OH)3 precipitates were dissolved further in a diluted H2SO4 solution, and then the cementation of In with Al was performed. We used HCl acid to remove Al from the In, after which unwrought In was obtained.
PB  - MDPI
T2  - Minerals
T1  - Indium Recovery from Jarosite Pb–Ag Tailings Waste (Part 1)
IS  - 4
SP  - 540
VL  - 13
DO  - 10.3390/min13040540
ER  - 

@article{
author = "Janošević, Miloš and Conić, Vesna and Božić, Dragana and Avramović, Ljiljana and Jovanović, Ivana and Kamberović, Željko and Marjanović, Saša",
year = "2023",
abstract = "The processing of zinc ore using hydrometallurgical methods leads to the formation and accumulation of a by-product called jarosite, which contains concentrated precious metals. In this study, we propose the recovery of In and its separation from Cu, Zn, Fe, Pb, and Ag. This study also presents a proposal for a new technological procedure for jarosite treatment. First we roasted the jarosite, and then the calcine collected was leached in water. The leaching extraction values obtained for Cu, Zn, Fe, and In were 91.07%, 91.97%, 9.60%, and 100.0%, respectively. Following the leaching of the roasted material in water, Pb, Ag, and most of the Fe obtained remained in the solid residue. The leaching solution was treated further by a precipitation process using NaOH, where In and Fe were precipitated and consequently separated from Cu and Zn. The In (OH)3 and Fe(OH)3 precipitates were dissolved further in a diluted H2SO4 solution, and then the cementation of In with Al was performed. We used HCl acid to remove Al from the In, after which unwrought In was obtained.",
publisher = "MDPI",
journal = "Minerals",
title = "Indium Recovery from Jarosite Pb–Ag Tailings Waste (Part 1)",
number = "4",
pages = "540",
volume = "13",
doi = "10.3390/min13040540"
}

Janošević, M., Conić, V., Božić, D., Avramović, L., Jovanović, I., Kamberović, Ž.,& Marjanović, S.. (2023). Indium Recovery from Jarosite Pb–Ag Tailings Waste (Part 1). in Minerals
MDPI., 13(4), 540.
https://doi.org/10.3390/min13040540

Janošević M, Conić V, Božić D, Avramović L, Jovanović I, Kamberović Ž, Marjanović S. Indium Recovery from Jarosite Pb–Ag Tailings Waste (Part 1). in Minerals. 2023;13(4):540.
doi:10.3390/min13040540 .

Janošević, Miloš, Conić, Vesna, Božić, Dragana, Avramović, Ljiljana, Jovanović, Ivana, Kamberović, Željko, Marjanović, Saša, "Indium Recovery from Jarosite Pb–Ag Tailings Waste (Part 1)" in Minerals, 13, no. 4 (2023):540,
https://doi.org/10.3390/min13040540 . .

TY  - CONF
AU  - Korać, Marija
AU  - Dimitrijević, Stevan
AU  - Delijić, Kemal
AU  - Dimitrijević, Silvana
AU  - Kamberović, Željko
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6841
AB  - The presented paper investigates the influence of zinc addition on corrosion characteristics of different sterling silver alloy systems. Open circuit potential measurements, linear polarization resistance method, and potentiodynamic polarization tests were employed to determine the corrosion characteristics of the alloys. The materials were tested in an Artificial Sweat, 0.9% NaCl, and 0.01M Na2S solutions. Based on the presented results, it could be concluded that zinc has the most significant direct impact. The benefits of zinc addition are especially noticeable in aluminum-containing alloy systems, but only up to 3.7 % of Zn. The best results are achieved for alloy AgCu1.9Zn3.7Al1.6Si0.3.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia (AMES)
C3  - Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023
T1  - Influence of zinc addition on anti-tarnish silver alloys in four different systems
EP  - 290
SP  - 286
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6841
ER  - 

@conference{
author = "Korać, Marija and Dimitrijević, Stevan and Delijić, Kemal and Dimitrijević, Silvana and Kamberović, Željko",
year = "2023",
abstract = "The presented paper investigates the influence of zinc addition on corrosion characteristics of different sterling silver alloy systems. Open circuit potential measurements, linear polarization resistance method, and potentiodynamic polarization tests were employed to determine the corrosion characteristics of the alloys. The materials were tested in an Artificial Sweat, 0.9% NaCl, and 0.01M Na2S solutions. Based on the presented results, it could be concluded that zinc has the most significant direct impact. The benefits of zinc addition are especially noticeable in aluminum-containing alloy systems, but only up to 3.7 % of Zn. The best results are achieved for alloy AgCu1.9Zn3.7Al1.6Si0.3.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia (AMES)",
journal = "Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023",
title = "Influence of zinc addition on anti-tarnish silver alloys in four different systems",
pages = "290-286",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6841"
}

Korać, M., Dimitrijević, S., Delijić, K., Dimitrijević, S.,& Kamberović, Ž.. (2023). Influence of zinc addition on anti-tarnish silver alloys in four different systems. in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023
Belgrade : Association of Metallurgical Engineers of Serbia (AMES)., 286-290.
https://hdl.handle.net/21.15107/rcub_technorep_6841

Korać M, Dimitrijević S, Delijić K, Dimitrijević S, Kamberović Ž. Influence of zinc addition on anti-tarnish silver alloys in four different systems. in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023. 2023;:286-290.
https://hdl.handle.net/21.15107/rcub_technorep_6841 .

Korać, Marija, Dimitrijević, Stevan, Delijić, Kemal, Dimitrijević, Silvana, Kamberović, Željko, "Influence of zinc addition on anti-tarnish silver alloys in four different systems" in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023 (2023):286-290,
https://hdl.handle.net/21.15107/rcub_technorep_6841 .

TY  - CONF
AU  - Dimitrijević, Stevan P.
AU  - Dimitrijević, Silvana B.
AU  - Ivanović, Aleksandra T.
AU  - Kovačević, Renata
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6801
AB  - Palladium alloys with low nickel content are commonly used as catalyst-trap for platinum or
platinum-rhodium catalysts in the process of production of nitric acid. Pure palladium and,
consequently, alloys with a high concentration of Pd are highly resistant in many corrosion
environments across the full pH range, from 0 to 14 and beyond, in the presence of different anions.
Mineral acids do not affect palladium, especially at lower concentrations; they can be dissolved
just in the mix of them. However, nickel in the alloy can be selectively dissolved in single mineral
acid with the use of an oxidation agent or anodic polarization, which is the more controllable
process. The aim of the work is the research of dealloying of PdNi5 in 0.5M sulfuric acid under
anodic polarization conditions. This study used open circuit potential, linear polarization
resistance, and chronoamperometry as electrochemical methods. Scanning electronic microscopy
with energy-dispersive X-ray spectroscopy (SEM-EDS) and inductively coupled plasma mass
spectrometry (ICP-MS) were used as structural and analytical techniques for the study of PdNi5
alloy dealloying in 0.5M sulfuric acid at three different anodic potentials.
AB  - Legure paladijuma sa niskim sadržajem nikla se obično koriste kao havatači katalizatora za platinu ili platina-rodijum katalizatore u procesu proizvodnje azotne kiseline. Čisti paladijum i posledično legure sa visokom koncentracijom Pd su visoko otporni u mnogim korozionim sredinama u punom pH opsegu, od 0 do 14 i više, u prisustvu različitih anjona. Mineralne kiseline ne utiču na paladijum, posebno na nižim koncentracijama; može se rastvoriti samo u njihovoj mešavini. Međutim, nikl u leguri može se selektivno rastvoriti u jednoj mineralnoj kiselini uz upotrebu oksidacionog agensa ili anodne polarizacije, što je proces koji se može više kontrolisati. Cilj rada je istraživanje dealloying-a PdNi5 u 0,5M sumpornoj kiselini u uslovima anodne polarizacije. Ova studija je koristila potencijal otvorenog kola, otpor linearne polarizacije i hronoamperometriju kao elektrohemijske metode. Skenirajuća elektronska mikroskopija sa energetski disperzivnom rendgenskom spektroskopijom (SEM-EDS) i masena spektrometrija induktivno spregnute plazme (ICP-MS) korišćene su kao strukturne i analitičke tehnike za proučavanje dealloying-a legure PdNi5 u 0,5M sumpornoj kiselini na tri različita anodna potencijala.
PB  - Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources
C3  - Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023
T1  - DEALLOYING OF PdNi5 ALLOY IN 0.5M SULFURIC ACID
T1  - DEALLOYING PdNi5 LEGURE U 0.5M SULFATNOJ KISELINI
EP  - 349
SP  - 341
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6801
ER  - 

@conference{
author = "Dimitrijević, Stevan P. and Dimitrijević, Silvana B. and Ivanović, Aleksandra T. and Kovačević, Renata",
year = "2023",
abstract = "Palladium alloys with low nickel content are commonly used as catalyst-trap for platinum or
platinum-rhodium catalysts in the process of production of nitric acid. Pure palladium and,
consequently, alloys with a high concentration of Pd are highly resistant in many corrosion
environments across the full pH range, from 0 to 14 and beyond, in the presence of different anions.
Mineral acids do not affect palladium, especially at lower concentrations; they can be dissolved
just in the mix of them. However, nickel in the alloy can be selectively dissolved in single mineral
acid with the use of an oxidation agent or anodic polarization, which is the more controllable
process. The aim of the work is the research of dealloying of PdNi5 in 0.5M sulfuric acid under
anodic polarization conditions. This study used open circuit potential, linear polarization
resistance, and chronoamperometry as electrochemical methods. Scanning electronic microscopy
with energy-dispersive X-ray spectroscopy (SEM-EDS) and inductively coupled plasma mass
spectrometry (ICP-MS) were used as structural and analytical techniques for the study of PdNi5
alloy dealloying in 0.5M sulfuric acid at three different anodic potentials., Legure paladijuma sa niskim sadržajem nikla se obično koriste kao havatači katalizatora za platinu ili platina-rodijum katalizatore u procesu proizvodnje azotne kiseline. Čisti paladijum i posledično legure sa visokom koncentracijom Pd su visoko otporni u mnogim korozionim sredinama u punom pH opsegu, od 0 do 14 i više, u prisustvu različitih anjona. Mineralne kiseline ne utiču na paladijum, posebno na nižim koncentracijama; može se rastvoriti samo u njihovoj mešavini. Međutim, nikl u leguri može se selektivno rastvoriti u jednoj mineralnoj kiselini uz upotrebu oksidacionog agensa ili anodne polarizacije, što je proces koji se može više kontrolisati. Cilj rada je istraživanje dealloying-a PdNi5 u 0,5M sumpornoj kiselini u uslovima anodne polarizacije. Ova studija je koristila potencijal otvorenog kola, otpor linearne polarizacije i hronoamperometriju kao elektrohemijske metode. Skenirajuća elektronska mikroskopija sa energetski disperzivnom rendgenskom spektroskopijom (SEM-EDS) i masena spektrometrija induktivno spregnute plazme (ICP-MS) korišćene su kao strukturne i analitičke tehnike za proučavanje dealloying-a legure PdNi5 u 0,5M sumpornoj kiselini na tri različita anodna potencijala.",
publisher = "Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources",
journal = "Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023",
title = "DEALLOYING OF PdNi5 ALLOY IN 0.5M SULFURIC ACID, DEALLOYING PdNi5 LEGURE U 0.5M SULFATNOJ KISELINI",
pages = "349-341",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6801"
}

Dimitrijević, S. P., Dimitrijević, S. B., Ivanović, A. T.,& Kovačević, R.. (2023). DEALLOYING OF PdNi5 ALLOY IN 0.5M SULFURIC ACID. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023
Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources., 341-349.
https://hdl.handle.net/21.15107/rcub_technorep_6801

Dimitrijević SP, Dimitrijević SB, Ivanović AT, Kovačević R. DEALLOYING OF PdNi5 ALLOY IN 0.5M SULFURIC ACID. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023. 2023;:341-349.
https://hdl.handle.net/21.15107/rcub_technorep_6801 .

Dimitrijević, Stevan P., Dimitrijević, Silvana B., Ivanović, Aleksandra T., Kovačević, Renata, "DEALLOYING OF PdNi5 ALLOY IN 0.5M SULFURIC ACID" in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023 (2023):341-349,
https://hdl.handle.net/21.15107/rcub_technorep_6801 .

TY  - CONF
AU  - Dimitrijević, Silvana B.
AU  - Ivanović, Aleksandra T.
AU  - Magdalinović, Srđana
AU  - Đorđijevski, Stefan S.
AU  - Dimitrijević, Stevan P.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6800
AB  - Recycling of printed circuit boards (PCBs) is an extremely complex and sensitive process. Physicochemical
characterization of printed circuit boards is significant for choosing the optimal
processing procedure. The aim of this research was the physico-chemical characterization of the
boards and the separated fractions after cutting on a shredder and magnetic separation. Separated
fractions (metal granulate, magnetic fraction, and plastic) were leached in three consecutive phases
by use of sulfuric acid, nitric acid, and aqua regia. The experiments were performed on the
fractions obtained by processing 100 kg of the sample and were compared with the results obtained by the chemical analysis of the sample obtained by manually unfolding 10 PCBs. Also, the grain size analysis of each separated fraction was determined.
AB  - Reciklaža štampanih ploča (PCBs) je izuzetno složen i osetljiv postupak. Fizičko-hemijska karakterizacija štampanih ploča je od velikog značaja zbog izbora optimalnog postupka za preradu. Cilj ovog istraživanja bila je fizičko-hemijska karakterizacija ploča kao i izdvojenih frakcija nakon sečenja na šrederu i magnetne separacije. Izdvojene frakcije (metalni granulat, magnetna frakcija i plastika) su rastvarane u tri uzastopne faze, luženjem, uz korišćenje: sumporne kiseline, azotne kiseline i carske vode. Eksperimenti su izvedeni na frakcijama dobijenim preradom 100 kg uzorka i upoređivani su sa rezultatima dobijenim hemijskom analizom uzorka dobijenog ručnim rasklapanjem 10 ploča. Takođe, određivan je granulo sastav svake izdvojene frakcije.
PB  - Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources
C3  - Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023
T1  - PHYSICO-CHEMICAL CHARACTERIZATION OF PCBs
T1  - FIZIČKO-HEMIJSKA KARAKTERIZACIJA ŠTAMPANIH PLOČA
EP  - 339
SP  - 333
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6800
ER  - 

@conference{
author = "Dimitrijević, Silvana B. and Ivanović, Aleksandra T. and Magdalinović, Srđana and Đorđijevski, Stefan S. and Dimitrijević, Stevan P.",
year = "2023",
abstract = "Recycling of printed circuit boards (PCBs) is an extremely complex and sensitive process. Physicochemical
characterization of printed circuit boards is significant for choosing the optimal
processing procedure. The aim of this research was the physico-chemical characterization of the
boards and the separated fractions after cutting on a shredder and magnetic separation. Separated
fractions (metal granulate, magnetic fraction, and plastic) were leached in three consecutive phases
by use of sulfuric acid, nitric acid, and aqua regia. The experiments were performed on the
fractions obtained by processing 100 kg of the sample and were compared with the results obtained by the chemical analysis of the sample obtained by manually unfolding 10 PCBs. Also, the grain size analysis of each separated fraction was determined., Reciklaža štampanih ploča (PCBs) je izuzetno složen i osetljiv postupak. Fizičko-hemijska karakterizacija štampanih ploča je od velikog značaja zbog izbora optimalnog postupka za preradu. Cilj ovog istraživanja bila je fizičko-hemijska karakterizacija ploča kao i izdvojenih frakcija nakon sečenja na šrederu i magnetne separacije. Izdvojene frakcije (metalni granulat, magnetna frakcija i plastika) su rastvarane u tri uzastopne faze, luženjem, uz korišćenje: sumporne kiseline, azotne kiseline i carske vode. Eksperimenti su izvedeni na frakcijama dobijenim preradom 100 kg uzorka i upoređivani su sa rezultatima dobijenim hemijskom analizom uzorka dobijenog ručnim rasklapanjem 10 ploča. Takođe, određivan je granulo sastav svake izdvojene frakcije.",
publisher = "Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources",
journal = "Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023",
title = "PHYSICO-CHEMICAL CHARACTERIZATION OF PCBs, FIZIČKO-HEMIJSKA KARAKTERIZACIJA ŠTAMPANIH PLOČA",
pages = "339-333",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6800"
}

Dimitrijević, S. B., Ivanović, A. T., Magdalinović, S., Đorđijevski, S. S.,& Dimitrijević, S. P.. (2023). PHYSICO-CHEMICAL CHARACTERIZATION OF PCBs. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023
Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources., 333-339.
https://hdl.handle.net/21.15107/rcub_technorep_6800

Dimitrijević SB, Ivanović AT, Magdalinović S, Đorđijevski SS, Dimitrijević SP. PHYSICO-CHEMICAL CHARACTERIZATION OF PCBs. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023. 2023;:333-339.
https://hdl.handle.net/21.15107/rcub_technorep_6800 .

Dimitrijević, Silvana B., Ivanović, Aleksandra T., Magdalinović, Srđana, Đorđijevski, Stefan S., Dimitrijević, Stevan P., "PHYSICO-CHEMICAL CHARACTERIZATION OF PCBs" in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023 (2023):333-339,
https://hdl.handle.net/21.15107/rcub_technorep_6800 .

TY  - CONF
AU  - Ivanović, Aleksandra T.
AU  - Dimitrijević, Silvana B.
AU  - Dimitrijević, Stevan P.
AU  - Petković, Branka B.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6799
AB  - This paper present the results of defining the mathematical model which describes the dependence
of tensile strength from the influential input parameters, aimed at developing non-toxic alloys that
could completely respond to the requirements in traffic networks electrification by replacing the
currently used Cu-Cd alloy system. The use of Cu-Cd alloys system is always resulting in many
environmental problems. Mathematical model is defined using the enter MLRA method, resulted in
a linear model whose coefficient of determination was R2=0.826. Validation of the acquired model
was performed using the data from the laboratory investigation that are not used when defining the
model, rendering the same statistical reliability, with R2=0.815.
AB  - U ovom radu su prikazani rezultati definisanja matematičkog modela koji opisuje zavisnost zatezne čvrstoće od uticajnih ulaznih parametara, u cilju razvoja netoksičnih legura koje bi u potpunosti mogle da odgovore zahtevima elektrifikacije saobraćajnih mreža zamenom trenutno korišćene legure Cu-Cd sistema. Upotreba legura sistema Cu-Cd uvek dovodi do mnogih ekoloških problema. Matematički model je definisan primenom enter MLRA metode, što je rezultiralo linearnim modelom čiji je koeficijent determinacije R2=0,826. Validacija dobijenog modela izvršena je korišćenjem podataka iz laboratorijskog ispitivanja koji se ne koriste pri definisanju modela, što daje istu statističku pouzdanost, sa R2=0,815.
PB  - Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources
C3  - Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023
T1  - STATISTICAL MODELING OF SOME ENVIRONMENTALLY-FRIENDLY COPPER-BASED ALLOYS
T1  - STATISTIČKO MODELOVANJE NEKIH EKOLOŠKI PRIHVATLJIVIH LEGURA NA BAZI BAKRA
EP  - 407
SP  - 403
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6799
ER  - 

@conference{
author = "Ivanović, Aleksandra T. and Dimitrijević, Silvana B. and Dimitrijević, Stevan P. and Petković, Branka B.",
year = "2023",
abstract = "This paper present the results of defining the mathematical model which describes the dependence
of tensile strength from the influential input parameters, aimed at developing non-toxic alloys that
could completely respond to the requirements in traffic networks electrification by replacing the
currently used Cu-Cd alloy system. The use of Cu-Cd alloys system is always resulting in many
environmental problems. Mathematical model is defined using the enter MLRA method, resulted in
a linear model whose coefficient of determination was R2=0.826. Validation of the acquired model
was performed using the data from the laboratory investigation that are not used when defining the
model, rendering the same statistical reliability, with R2=0.815., U ovom radu su prikazani rezultati definisanja matematičkog modela koji opisuje zavisnost zatezne čvrstoće od uticajnih ulaznih parametara, u cilju razvoja netoksičnih legura koje bi u potpunosti mogle da odgovore zahtevima elektrifikacije saobraćajnih mreža zamenom trenutno korišćene legure Cu-Cd sistema. Upotreba legura sistema Cu-Cd uvek dovodi do mnogih ekoloških problema. Matematički model je definisan primenom enter MLRA metode, što je rezultiralo linearnim modelom čiji je koeficijent determinacije R2=0,826. Validacija dobijenog modela izvršena je korišćenjem podataka iz laboratorijskog ispitivanja koji se ne koriste pri definisanju modela, što daje istu statističku pouzdanost, sa R2=0,815.",
publisher = "Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources",
journal = "Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023",
title = "STATISTICAL MODELING OF SOME ENVIRONMENTALLY-FRIENDLY COPPER-BASED ALLOYS, STATISTIČKO MODELOVANJE NEKIH EKOLOŠKI PRIHVATLJIVIH LEGURA NA BAZI BAKRA",
pages = "407-403",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6799"
}

Ivanović, A. T., Dimitrijević, S. B., Dimitrijević, S. P.,& Petković, B. B.. (2023). STATISTICAL MODELING OF SOME ENVIRONMENTALLY-FRIENDLY COPPER-BASED ALLOYS. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023
Beograd : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Society for Renewable Electrical Power Sources., 403-407.
https://hdl.handle.net/21.15107/rcub_technorep_6799

Ivanović AT, Dimitrijević SB, Dimitrijević SP, Petković BB. STATISTICAL MODELING OF SOME ENVIRONMENTALLY-FRIENDLY COPPER-BASED ALLOYS. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023. 2023;:403-407.
https://hdl.handle.net/21.15107/rcub_technorep_6799 .

Ivanović, Aleksandra T., Dimitrijević, Silvana B., Dimitrijević, Stevan P., Petković, Branka B., "STATISTICAL MODELING OF SOME ENVIRONMENTALLY-FRIENDLY COPPER-BASED ALLOYS" in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, November 02-03, 2023 (2023):403-407,
https://hdl.handle.net/21.15107/rcub_technorep_6799 .

TY  - CONF
AU  - Dimitrijević, Silvana
AU  - Dimitrijević, Stevan
AU  - Ivanović, Aleksandra
AU  - Korać, Marija
AU  - Ranitović, Milisav
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6732
AB  - Although the same quality of various metals from the recycling process is considered for granted, obtaining aluminum of high purity and aluminum alloys with identical properties as from production from pure raw materials is a very challenging process, especially if the sources for recycling are numerous materials that contain different impurities. In this study, recycled alloys were produced by melting of aluminum scrap with the addition of the required components. This paper aims to compare two commercial Al alloys with their analogs from the recycling process. Both of the alloys belong to the aluminum series 6000, with designations 6060 and 6082. The results of comparing corrosion and physical characteristics are presented in this study. Physical characterization was performed by measuring the alloys' hardness and electrical conductivity. The electrochemical investigation used several corrosion methods, OCP (open circuit potential), measuring polarization curves in apparent Tafel region with extrapolation of results, and LRP (linear polarization resistance). The corrosion environment was acidulated 0.5M Na2SO4 with pH=2.5. The received results have confirmed insignificant differences between the properties of the commercial and alloys produced by the recycling. Recycled alloys have achieved almost identical mechanical properties and even slightly better corrosion characteristics, which was the consequence of the lower concentration of impurities in recycled alloys or higher concentration of microalloying components.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia (AMES)
C3  - Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023
T1  - Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys
EP  - 275
SP  - 269
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6732
ER  - 

@conference{
author = "Dimitrijević, Silvana and Dimitrijević, Stevan and Ivanović, Aleksandra and Korać, Marija and Ranitović, Milisav",
year = "2023",
abstract = "Although the same quality of various metals from the recycling process is considered for granted, obtaining aluminum of high purity and aluminum alloys with identical properties as from production from pure raw materials is a very challenging process, especially if the sources for recycling are numerous materials that contain different impurities. In this study, recycled alloys were produced by melting of aluminum scrap with the addition of the required components. This paper aims to compare two commercial Al alloys with their analogs from the recycling process. Both of the alloys belong to the aluminum series 6000, with designations 6060 and 6082. The results of comparing corrosion and physical characteristics are presented in this study. Physical characterization was performed by measuring the alloys' hardness and electrical conductivity. The electrochemical investigation used several corrosion methods, OCP (open circuit potential), measuring polarization curves in apparent Tafel region with extrapolation of results, and LRP (linear polarization resistance). The corrosion environment was acidulated 0.5M Na2SO4 with pH=2.5. The received results have confirmed insignificant differences between the properties of the commercial and alloys produced by the recycling. Recycled alloys have achieved almost identical mechanical properties and even slightly better corrosion characteristics, which was the consequence of the lower concentration of impurities in recycled alloys or higher concentration of microalloying components.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia (AMES)",
journal = "Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023",
title = "Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys",
pages = "275-269",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6732"
}

Dimitrijević, S., Dimitrijević, S., Ivanović, A., Korać, M.,& Ranitović, M.. (2023). Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys. in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023
Belgrade : Association of Metallurgical Engineers of Serbia (AMES)., 269-275.
https://hdl.handle.net/21.15107/rcub_technorep_6732

Dimitrijević S, Dimitrijević S, Ivanović A, Korać M, Ranitović M. Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys. in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023. 2023;:269-275.
https://hdl.handle.net/21.15107/rcub_technorep_6732 .

Dimitrijević, Silvana, Dimitrijević, Stevan, Ivanović, Aleksandra, Korać, Marija, Ranitović, Milisav, "Comparation of corrosion and mechanical properties of commercial and recycled 6060 and 6082 aluminium alloys" in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023 (2023):269-275,
https://hdl.handle.net/21.15107/rcub_technorep_6732 .

TY  - CONF
AU  - Ivanović, Aleksandra
AU  - Dimitrijević, Silvana
AU  - Dimitrijević, Stevan
AU  - Kovačević, Renata
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6733
AB  - Binary palladium alloys with nickel are known to have catalytic activity and are also used as catalyst-trap in the synthesis of nitric acid. High Pd alloys are corrosive resistant in many solutions, including highly alkaline and highly acidic. Although generally not prone to corrosion in low concentrations of mineral acids due to the high content of palladium in it, this alloy is still prone to the dealloying effect under specific conditions. The dealloying process was researched under anodic polarization in 1.0M nitric acid solution. Scanning electronic microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), inductively coupled plasma atomic emission spectroscopy (ICP-AES)  and electrochemical methods were used to study the susceptibility of PdNi5 alloy to dealloying.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia (AMES)
C3  - Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023
T1  - Dealloying of PdNi5 Alloy in 1.0M Nitric Acid
EP  - 285
SP  - 279
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6733
ER  - 

@conference{
author = "Ivanović, Aleksandra and Dimitrijević, Silvana and Dimitrijević, Stevan and Kovačević, Renata",
year = "2023",
abstract = "Binary palladium alloys with nickel are known to have catalytic activity and are also used as catalyst-trap in the synthesis of nitric acid. High Pd alloys are corrosive resistant in many solutions, including highly alkaline and highly acidic. Although generally not prone to corrosion in low concentrations of mineral acids due to the high content of palladium in it, this alloy is still prone to the dealloying effect under specific conditions. The dealloying process was researched under anodic polarization in 1.0M nitric acid solution. Scanning electronic microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), inductively coupled plasma atomic emission spectroscopy (ICP-AES)  and electrochemical methods were used to study the susceptibility of PdNi5 alloy to dealloying.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia (AMES)",
journal = "Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023",
title = "Dealloying of PdNi5 Alloy in 1.0M Nitric Acid",
pages = "285-279",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6733"
}

Ivanović, A., Dimitrijević, S., Dimitrijević, S.,& Kovačević, R.. (2023). Dealloying of PdNi5 Alloy in 1.0M Nitric Acid. in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023
Belgrade : Association of Metallurgical Engineers of Serbia (AMES)., 279-285.
https://hdl.handle.net/21.15107/rcub_technorep_6733

Ivanović A, Dimitrijević S, Dimitrijević S, Kovačević R. Dealloying of PdNi5 Alloy in 1.0M Nitric Acid. in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023. 2023;:279-285.
https://hdl.handle.net/21.15107/rcub_technorep_6733 .

Ivanović, Aleksandra, Dimitrijević, Silvana, Dimitrijević, Stevan, Kovačević, Renata, "Dealloying of PdNi5 Alloy in 1.0M Nitric Acid" in Congress Proceedings / 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023 (2023):279-285,
https://hdl.handle.net/21.15107/rcub_technorep_6733 .

TY  - JOUR
AU  - Marjanović, Vesna
AU  - Marković, Radmila
AU  - Steharnik, Mirjana
AU  - Dimitrijević, Silvana
AU  - Marinković, Aleksandar D.
AU  - Perić-Grujić, Aleksandra
AU  - Đolić, Maja
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5271
AB  - Highly porous lignin-based microspheres, modified by magnetite nanoparticles, were used for the first time for the removal of selenate anions, Se(VI), from spiked and real water samples. The influence of experimental conditions: selenate concentration, adsorbent dosage and contact time on the adsorption capacity was investigated in a batch experimental mode. The FTIR, XRD, SEM techniques were used to analyze the structural and morphological properties of the native and exhausted adsorbent. The maximum adsorption capacity was found to be 69.9 mg/g for Se(VI) anions at pH 6.46 from the simulated water samples. The modified natural polymer was efficient in Se(VI) removal from the real (potable) water samples, originated from six cities in the Republic of Serbia, with an overage efficacy of 20%. The regeneration capacity of 61% in one cycle of desorption (0.5 M NaOH as desorption solution) of bio-based adsorbent was gained in this investigation. The examined material demonstrated a significant affinity for Se(VI) oxyanion, but a low potential for multi-cycle material application; consequently, the loaded sorbent could be proposed to be used as a Se fertilizer.
PB  - MDPI
T2  - International Journal of Molecular Sciences
T1  - Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent
IS  - 22
SP  - 13872
VL  - 23
DO  - 10.3390/ijms232213872
ER  - 

@article{
author = "Marjanović, Vesna and Marković, Radmila and Steharnik, Mirjana and Dimitrijević, Silvana and Marinković, Aleksandar D. and Perić-Grujić, Aleksandra and Đolić, Maja",
year = "2022",
abstract = "Highly porous lignin-based microspheres, modified by magnetite nanoparticles, were used for the first time for the removal of selenate anions, Se(VI), from spiked and real water samples. The influence of experimental conditions: selenate concentration, adsorbent dosage and contact time on the adsorption capacity was investigated in a batch experimental mode. The FTIR, XRD, SEM techniques were used to analyze the structural and morphological properties of the native and exhausted adsorbent. The maximum adsorption capacity was found to be 69.9 mg/g for Se(VI) anions at pH 6.46 from the simulated water samples. The modified natural polymer was efficient in Se(VI) removal from the real (potable) water samples, originated from six cities in the Republic of Serbia, with an overage efficacy of 20%. The regeneration capacity of 61% in one cycle of desorption (0.5 M NaOH as desorption solution) of bio-based adsorbent was gained in this investigation. The examined material demonstrated a significant affinity for Se(VI) oxyanion, but a low potential for multi-cycle material application; consequently, the loaded sorbent could be proposed to be used as a Se fertilizer.",
publisher = "MDPI",
journal = "International Journal of Molecular Sciences",
title = "Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent",
number = "22",
pages = "13872",
volume = "23",
doi = "10.3390/ijms232213872"
}

Marjanović, V., Marković, R., Steharnik, M., Dimitrijević, S., Marinković, A. D., Perić-Grujić, A.,& Đolić, M.. (2022). Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent. in International Journal of Molecular Sciences
MDPI., 23(22), 13872.
https://doi.org/10.3390/ijms232213872

Marjanović V, Marković R, Steharnik M, Dimitrijević S, Marinković AD, Perić-Grujić A, Đolić M. Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent. in International Journal of Molecular Sciences. 2022;23(22):13872.
doi:10.3390/ijms232213872 .

Marjanović, Vesna, Marković, Radmila, Steharnik, Mirjana, Dimitrijević, Silvana, Marinković, Aleksandar D., Perić-Grujić, Aleksandra, Đolić, Maja, "Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent" in International Journal of Molecular Sciences, 23, no. 22 (2022):13872,
https://doi.org/10.3390/ijms232213872 . .

Dimitrijević, S., Kamberović, Ž., Ranitović, M., Korać, M.,& Dimitrijević, S.. (2022). Poboljšanje karakteristika srebrnog praha mikrometarske veličine i optimizacija troškova proizvodnje u proizvodnom pogonu Chimet S.p.A.. in Tehnološko-metalurški fakultet
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_6647

Dimitrijević S, Kamberović Ž, Ranitović M, Korać M, Dimitrijević S. Poboljšanje karakteristika srebrnog praha mikrometarske veličine i optimizacija troškova proizvodnje u proizvodnom pogonu Chimet S.p.A.. in Tehnološko-metalurški fakultet. 2022;.
https://hdl.handle.net/21.15107/rcub_technorep_6647 .

Dimitrijević, Stevan, Kamberović, Željko, Ranitović, Milisav, Korać, Marija, Dimitrijević, Silvana, "Poboljšanje karakteristika srebrnog praha mikrometarske veličine i optimizacija troškova proizvodnje u proizvodnom pogonu Chimet S.p.A." in Tehnološko-metalurški fakultet (2022),
https://hdl.handle.net/21.15107/rcub_technorep_6647 .

TY  - JOUR
AU  - Petković, Branka B.
AU  - Kostić, Marija
AU  - Samaržija-Jovanović, Suzana
AU  - Ivanović, Aleksandra
AU  - Laban, Bojana
AU  - Veljović, Đorđe
AU  - Stanković, Dalibor M.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5283
AB  - Urea-formaldehyde resin (UF) is primarily used as an adhesive applied in the wood composites industry. In this work, we found that this resin modified with metal compounds could be a good starting point to produce high-performance electrode material applied for the construction of electrochemical sensor for important antioxidant, such as caffeic acids (CA). The conductivity of carbon paste electrodes (CPE) modified by materials produced by thermolysis of in situ synthesized urea formaldehyde resins with Fe(III) and Ti(IV) compounds (mixed metal compounds and individually) were examined. For comparison, pure CPE and CPE modified with material produced from the physical mixture of UF resins and metal compounds in the same combinations were also electrochemically characterized by impedance spectroscopy and cyclic voltammetry. The most conductive material, which consists of a combination of metal oxide particles in situ synthesized with UF (SynFe+Ti/UF-TP@CPE), was used as a CPE modifier and proved itself in sensitive differential pulse voltammetric determination of caffeic acid at a wide working range of 0.5-100 and limit of detection of 0.046 μM. The proposed electrode was successfully applied for the determination of the content of CA in spiked urine samples and the estimation of total phenol content, based on CA equivalents, of honey, liqueur and juice samples.
PB  - Electrochemical Science Group
T2  - International Journal of Electrochemical Science
T1  - An Efficient Electrochemical Sensing of Caffeic Acid at Thermolysis Prepared Urea-formaldehyde Resin Modified with Fe(III) and Ti(IV) Oxide Particles
SP  - 221214
VL  - 17
DO  - 10.20964/2022.12.04
ER  - 

@article{
author = "Petković, Branka B. and Kostić, Marija and Samaržija-Jovanović, Suzana and Ivanović, Aleksandra and Laban, Bojana and Veljović, Đorđe and Stanković, Dalibor M.",
year = "2022",
abstract = "Urea-formaldehyde resin (UF) is primarily used as an adhesive applied in the wood composites industry. In this work, we found that this resin modified with metal compounds could be a good starting point to produce high-performance electrode material applied for the construction of electrochemical sensor for important antioxidant, such as caffeic acids (CA). The conductivity of carbon paste electrodes (CPE) modified by materials produced by thermolysis of in situ synthesized urea formaldehyde resins with Fe(III) and Ti(IV) compounds (mixed metal compounds and individually) were examined. For comparison, pure CPE and CPE modified with material produced from the physical mixture of UF resins and metal compounds in the same combinations were also electrochemically characterized by impedance spectroscopy and cyclic voltammetry. The most conductive material, which consists of a combination of metal oxide particles in situ synthesized with UF (SynFe+Ti/UF-TP@CPE), was used as a CPE modifier and proved itself in sensitive differential pulse voltammetric determination of caffeic acid at a wide working range of 0.5-100 and limit of detection of 0.046 μM. The proposed electrode was successfully applied for the determination of the content of CA in spiked urine samples and the estimation of total phenol content, based on CA equivalents, of honey, liqueur and juice samples.",
publisher = "Electrochemical Science Group",
journal = "International Journal of Electrochemical Science",
title = "An Efficient Electrochemical Sensing of Caffeic Acid at Thermolysis Prepared Urea-formaldehyde Resin Modified with Fe(III) and Ti(IV) Oxide Particles",
pages = "221214",
volume = "17",
doi = "10.20964/2022.12.04"
}

Petković, B. B., Kostić, M., Samaržija-Jovanović, S., Ivanović, A., Laban, B., Veljović, Đ.,& Stanković, D. M.. (2022). An Efficient Electrochemical Sensing of Caffeic Acid at Thermolysis Prepared Urea-formaldehyde Resin Modified with Fe(III) and Ti(IV) Oxide Particles. in International Journal of Electrochemical Science
Electrochemical Science Group., 17, 221214.
https://doi.org/10.20964/2022.12.04

Petković BB, Kostić M, Samaržija-Jovanović S, Ivanović A, Laban B, Veljović Đ, Stanković DM. An Efficient Electrochemical Sensing of Caffeic Acid at Thermolysis Prepared Urea-formaldehyde Resin Modified with Fe(III) and Ti(IV) Oxide Particles. in International Journal of Electrochemical Science. 2022;17:221214.
doi:10.20964/2022.12.04 .

Petković, Branka B., Kostić, Marija, Samaržija-Jovanović, Suzana, Ivanović, Aleksandra, Laban, Bojana, Veljović, Đorđe, Stanković, Dalibor M., "An Efficient Electrochemical Sensing of Caffeic Acid at Thermolysis Prepared Urea-formaldehyde Resin Modified with Fe(III) and Ti(IV) Oxide Particles" in International Journal of Electrochemical Science, 17 (2022):221214,
https://doi.org/10.20964/2022.12.04 . .

TY  - JOUR
AU  - Dimitrijević, Stevan P.
AU  - Dimitrijević, Silvana B.
AU  - Ivanović, Aleksandra
AU  - Vuković, Nikola
AU  - Dhawan, Nikhil
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5206
AB  - This study investigates the electrochemical stability of the gold complex based on mercaptotriazole at an optimum pH of nine in the electrolyte with a gold concentration of 2.5 g dm−3. The stability of the complex was studied by visual monitoring and electrochemical characterization of electrolytes over a period of 1 year. Electrochemical characterization of the mercaptotriazole gold complex was performed using open circuit potential measurement, cyclic voltammetry, recording the polarization curves, pH, and conductivity of the electrolyte. Electrochemical characteristics and visual appearance of the mercaptotriazole gold complex at a pH ~ 9 were not significantly changed for one year, with no changes in its visual appearance. The results of this study are important for industrial applications in order to replace cyanide electrolytes with a stable organic complex.
PB  - Springer Science and Business Media Deutschland GmbH
T2  - Chemical Papers
T1  - Electrochemical stability of gold complex based on mercaptotriazole at optimal condition
DO  - 10.1007/s11696-022-02447-y
ER  - 

@article{
author = "Dimitrijević, Stevan P. and Dimitrijević, Silvana B. and Ivanović, Aleksandra and Vuković, Nikola and Dhawan, Nikhil",
year = "2022",
abstract = "This study investigates the electrochemical stability of the gold complex based on mercaptotriazole at an optimum pH of nine in the electrolyte with a gold concentration of 2.5 g dm−3. The stability of the complex was studied by visual monitoring and electrochemical characterization of electrolytes over a period of 1 year. Electrochemical characterization of the mercaptotriazole gold complex was performed using open circuit potential measurement, cyclic voltammetry, recording the polarization curves, pH, and conductivity of the electrolyte. Electrochemical characteristics and visual appearance of the mercaptotriazole gold complex at a pH ~ 9 were not significantly changed for one year, with no changes in its visual appearance. The results of this study are important for industrial applications in order to replace cyanide electrolytes with a stable organic complex.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Chemical Papers",
title = "Electrochemical stability of gold complex based on mercaptotriazole at optimal condition",
doi = "10.1007/s11696-022-02447-y"
}

Dimitrijević, S. P., Dimitrijević, S. B., Ivanović, A., Vuković, N.,& Dhawan, N.. (2022). Electrochemical stability of gold complex based on mercaptotriazole at optimal condition. in Chemical Papers
Springer Science and Business Media Deutschland GmbH..
https://doi.org/10.1007/s11696-022-02447-y

Dimitrijević SP, Dimitrijević SB, Ivanović A, Vuković N, Dhawan N. Electrochemical stability of gold complex based on mercaptotriazole at optimal condition. in Chemical Papers. 2022;.
doi:10.1007/s11696-022-02447-y .

Dimitrijević, Stevan P., Dimitrijević, Silvana B., Ivanović, Aleksandra, Vuković, Nikola, Dhawan, Nikhil, "Electrochemical stability of gold complex based on mercaptotriazole at optimal condition" in Chemical Papers (2022),
https://doi.org/10.1007/s11696-022-02447-y . .

TY  - CONF
AU  - Ivanović, Aleksandra T.
AU  - Dimitrijević, Silvana B.
AU  - Dimitrijević, Stevan P.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6631
AB  - This paper presents original software, developed for the needs of mathematical modeling of complex processes using the simplex method. The software was developed in the Delphi programming language for the Windows environment. The idea was to use the developed software to determine the efficiency of the simplex method in choosing the optimal mode of heat treatment of PdNi5 alloy, and simplex triangle can visually monitor the legality of the behavior of the test process depending on the influential parameters.
AB  - U radu je predstavljen originalni softver, razvijen za potrebe matematičkog modeliranja složenih procesa primenom simpleks metode. Softver je razvijen u programskom jeziku Delphi za Vindovs okruženje. Ideja je bila da se razvijenim softverom utvrdi efikasnost simpleks metode u izboru optimalnog načina termičke obrade legure PdNi5, a simpleks trouglom se može vizuelno pratiti zakonitost ponašanja procesa ispitivanja u zavisnosti od uticajnih parametara.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije SMEITS, Društvo za obnovljive izvore električne energije
C3  - Zbornik radova 10. Međunarodne konferencije o obnovljivim izvorima električne energije
T1  - Presentation of software for applying simplex methods
T1  - Prezentacija softvera za primenu simpleks metoda
EP  - 210
IS  - 1
SP  - 207
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6631
ER  - 

@conference{
author = "Ivanović, Aleksandra T. and Dimitrijević, Silvana B. and Dimitrijević, Stevan P.",
year = "2022",
abstract = "This paper presents original software, developed for the needs of mathematical modeling of complex processes using the simplex method. The software was developed in the Delphi programming language for the Windows environment. The idea was to use the developed software to determine the efficiency of the simplex method in choosing the optimal mode of heat treatment of PdNi5 alloy, and simplex triangle can visually monitor the legality of the behavior of the test process depending on the influential parameters., U radu je predstavljen originalni softver, razvijen za potrebe matematičkog modeliranja složenih procesa primenom simpleks metode. Softver je razvijen u programskom jeziku Delphi za Vindovs okruženje. Ideja je bila da se razvijenim softverom utvrdi efikasnost simpleks metode u izboru optimalnog načina termičke obrade legure PdNi5, a simpleks trouglom se može vizuelno pratiti zakonitost ponašanja procesa ispitivanja u zavisnosti od uticajnih parametara.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije SMEITS, Društvo za obnovljive izvore električne energije",
journal = "Zbornik radova 10. Međunarodne konferencije o obnovljivim izvorima električne energije",
title = "Presentation of software for applying simplex methods, Prezentacija softvera za primenu simpleks metoda",
pages = "210-207",
number = "1",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6631"
}

Ivanović, A. T., Dimitrijević, S. B.,& Dimitrijević, S. P.. (2022). Presentation of software for applying simplex methods. in Zbornik radova 10. Međunarodne konferencije o obnovljivim izvorima električne energije
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije SMEITS, Društvo za obnovljive izvore električne energije., 10(1), 207-210.
https://hdl.handle.net/21.15107/rcub_technorep_6631

Ivanović AT, Dimitrijević SB, Dimitrijević SP. Presentation of software for applying simplex methods. in Zbornik radova 10. Međunarodne konferencije o obnovljivim izvorima električne energije. 2022;10(1):207-210.
https://hdl.handle.net/21.15107/rcub_technorep_6631 .

Ivanović, Aleksandra T., Dimitrijević, Silvana B., Dimitrijević, Stevan P., "Presentation of software for applying simplex methods" in Zbornik radova 10. Međunarodne konferencije o obnovljivim izvorima električne energije, 10, no. 1 (2022):207-210,
https://hdl.handle.net/21.15107/rcub_technorep_6631 .

TY  - CONF
AU  - Magdalinović, Srđana
AU  - Dimitrijević, Silvana
AU  - Ivanović, Aleksandra
AU  - Dimitrijević, Stevan
AU  - Đorđievski, Stefan
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6646
AB  - Recycling of the waste printed circuit boards (PCBs) is necessary from both an economic and an
environmental point of view. Large amounts of waste contain significant amounts of valuable metals
used as the secondary source. The PCBs can be viewed as a complicated mineral raw material on which
mineral processing procedures can be applied. This work presents the mineral processing procedures
used in the certain stages of recycling waste printed circuit boards.
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor
T1  - Application of mineral processing methods in recycling the waste printed circuit board
EP  - 50
SP  - 47
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6646
ER  - 

@conference{
author = "Magdalinović, Srđana and Dimitrijević, Silvana and Ivanović, Aleksandra and Dimitrijević, Stevan and Đorđievski, Stefan",
year = "2022",
abstract = "Recycling of the waste printed circuit boards (PCBs) is necessary from both an economic and an
environmental point of view. Large amounts of waste contain significant amounts of valuable metals
used as the secondary source. The PCBs can be viewed as a complicated mineral raw material on which
mineral processing procedures can be applied. This work presents the mineral processing procedures
used in the certain stages of recycling waste printed circuit boards.",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor",
title = "Application of mineral processing methods in recycling the waste printed circuit board",
pages = "50-47",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6646"
}

Magdalinović, S., Dimitrijević, S., Ivanović, A., Dimitrijević, S.,& Đorđievski, S.. (2022). Application of mineral processing methods in recycling the waste printed circuit board. in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor
Bor : Mining and Metallurgy Institute., 47-50.
https://hdl.handle.net/21.15107/rcub_technorep_6646

Magdalinović S, Dimitrijević S, Ivanović A, Dimitrijević S, Đorđievski S. Application of mineral processing methods in recycling the waste printed circuit board. in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor. 2022;:47-50.
https://hdl.handle.net/21.15107/rcub_technorep_6646 .

Magdalinović, Srđana, Dimitrijević, Silvana, Ivanović, Aleksandra, Dimitrijević, Stevan, Đorđievski, Stefan, "Application of mineral processing methods in recycling the waste printed circuit board" in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor (2022):47-50,
https://hdl.handle.net/21.15107/rcub_technorep_6646 .

TY  - CONF
AU  - Dimitrijević, Silvana
AU  - Veličković, Suzana
AU  - Veljković, Filip
AU  - Alagić, Slađana
AU  - Dimitrijević, Stevan
AU  - Ivanović, Aleksandra
AU  - Ivanović, Saša
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6645
AB  - This work is aimed to characterize the gold complexes using the electron spray ionization (ESI), and atmospheric solids analysis probe (ASAP), tandem quadrupole mass spectrometer (TQD). It is demonstrated here that the use of the ASAP is more suitable than the ESI for a rapid analysis of the gold coatings in the solid and liquid state. The mass spectra indicate that mercaptotriazole and glycine can coordinate with the gold ion and to build complexes such as [Au-2MT-Gly] and [Au-2MT-2Gly].
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor
T1  - CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD)
EP  - 172
SP  - 169
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6645
ER  - 

@conference{
author = "Dimitrijević, Silvana and Veličković, Suzana and Veljković, Filip and Alagić, Slađana and Dimitrijević, Stevan and Ivanović, Aleksandra and Ivanović, Saša",
year = "2022",
abstract = "This work is aimed to characterize the gold complexes using the electron spray ionization (ESI), and atmospheric solids analysis probe (ASAP), tandem quadrupole mass spectrometer (TQD). It is demonstrated here that the use of the ASAP is more suitable than the ESI for a rapid analysis of the gold coatings in the solid and liquid state. The mass spectra indicate that mercaptotriazole and glycine can coordinate with the gold ion and to build complexes such as [Au-2MT-Gly] and [Au-2MT-2Gly].",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor",
title = "CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD)",
pages = "172-169",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6645"
}

Dimitrijević, S., Veličković, S., Veljković, F., Alagić, S., Dimitrijević, S., Ivanović, A.,& Ivanović, S.. (2022). CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD). in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor
Bor : Mining and Metallurgy Institute., 169-172.
https://hdl.handle.net/21.15107/rcub_technorep_6645

Dimitrijević S, Veličković S, Veljković F, Alagić S, Dimitrijević S, Ivanović A, Ivanović S. CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD). in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor. 2022;:169-172.
https://hdl.handle.net/21.15107/rcub_technorep_6645 .

Dimitrijević, Silvana, Veličković, Suzana, Veljković, Filip, Alagić, Slađana, Dimitrijević, Stevan, Ivanović, Aleksandra, Ivanović, Saša, "CHARACTERIZATION OF THE GOLD MERCAPTOTRIAZOLE COMPLEX USING THE TANDEM QUADRUPOLE MASS SPECTROMETRY (TQD)" in Proceedings / 53rd International October Conference on Mining and Metallurgy - IOC 2022, 3 – 5 October 2022, Bor (2022):169-172,
https://hdl.handle.net/21.15107/rcub_technorep_6645 .

Stević, Z., Dimitrijević, S., Dimitrijević, S.,& Lekovski, S.. (2021). Razvoј hardvera i softvera za energetski efikasne računarom vođene peći za sinterovanje. in Tehnički fakultet u Boru, Univerzitet u Beogradu
Univerzitet u Beogradu, Tehnički fakultet u Boru..
https://hdl.handle.net/21.15107/rcub_technorep_6757

Stević Z, Dimitrijević S, Dimitrijević S, Lekovski S. Razvoј hardvera i softvera za energetski efikasne računarom vođene peći za sinterovanje. in Tehnički fakultet u Boru, Univerzitet u Beogradu. 2021;.
https://hdl.handle.net/21.15107/rcub_technorep_6757 .

Stević, Zoran, Dimitrijević, Stevan, Dimitrijević, Silvana, Lekovski, Sande, "Razvoј hardvera i softvera za energetski efikasne računarom vođene peći za sinterovanje" in Tehnički fakultet u Boru, Univerzitet u Beogradu (2021),
https://hdl.handle.net/21.15107/rcub_technorep_6757 .

TY  - JOUR
AU  - Dimitrijevic, Silvana B.
AU  - Velickovic, Suzana R.
AU  - Ivanovic, Aleksandra T.
AU  - Veljkovic, Filip M.
AU  - Jovanovic, Milan M.
AU  - Kamberović, Željko
AU  - Dimitrijević, Stevan
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4807
AB  - A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric acid/sodium hydroxide concentration, leaching time and stirring rate were studied. For the acid leaching process the optimal values for parameters were 60 degrees C, 1.0 M HNO3, 2.5 h, and 800 rpm. It has been noted that the key factors in the alkaline leaching process were temperature and NaOH concentration. For the alkaline leaching, the optimal parameters were 100 degrees C, 40% concentration of NaOH solution, and leaching time of 4 h. Identification and characterisation of products in all technological processes were performed by X-Ray Diffraction (XRD), scanning electron microscope using energy-dispersive X-ray spectroscopy (SEM-EDS), and laser desorption ionisation mass spectrometry (LDI-MS). The analysis of solutions in all phases was performed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The use of LDI-MS as a new approach to identify the products after phases in the recycling process was an important part of the study, and the results were consistent with the XRD analysis. The total tungsten recovery was over 95.6%, with a high purity of the obtained tungsten trioxide.
T2  - International Journal of Refractory Metals & Hard Materials
T1  - Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching
VL  - 101
DO  - 10.1016/j.ijrmhm.2021.105695
ER  - 

@article{
author = "Dimitrijevic, Silvana B. and Velickovic, Suzana R. and Ivanovic, Aleksandra T. and Veljkovic, Filip M. and Jovanovic, Milan M. and Kamberović, Željko and Dimitrijević, Stevan",
year = "2021",
abstract = "A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric acid/sodium hydroxide concentration, leaching time and stirring rate were studied. For the acid leaching process the optimal values for parameters were 60 degrees C, 1.0 M HNO3, 2.5 h, and 800 rpm. It has been noted that the key factors in the alkaline leaching process were temperature and NaOH concentration. For the alkaline leaching, the optimal parameters were 100 degrees C, 40% concentration of NaOH solution, and leaching time of 4 h. Identification and characterisation of products in all technological processes were performed by X-Ray Diffraction (XRD), scanning electron microscope using energy-dispersive X-ray spectroscopy (SEM-EDS), and laser desorption ionisation mass spectrometry (LDI-MS). The analysis of solutions in all phases was performed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The use of LDI-MS as a new approach to identify the products after phases in the recycling process was an important part of the study, and the results were consistent with the XRD analysis. The total tungsten recovery was over 95.6%, with a high purity of the obtained tungsten trioxide.",
journal = "International Journal of Refractory Metals & Hard Materials",
title = "Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching",
volume = "101",
doi = "10.1016/j.ijrmhm.2021.105695"
}

Dimitrijevic, S. B., Velickovic, S. R., Ivanovic, A. T., Veljkovic, F. M., Jovanovic, M. M., Kamberović, Ž.,& Dimitrijević, S.. (2021). Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching. in International Journal of Refractory Metals & Hard Materials, 101.
https://doi.org/10.1016/j.ijrmhm.2021.105695

Dimitrijevic SB, Velickovic SR, Ivanovic AT, Veljkovic FM, Jovanovic MM, Kamberović Ž, Dimitrijević S. Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching. in International Journal of Refractory Metals & Hard Materials. 2021;101.
doi:10.1016/j.ijrmhm.2021.105695 .

Dimitrijevic, Silvana B., Velickovic, Suzana R., Ivanovic, Aleksandra T., Veljkovic, Filip M., Jovanovic, Milan M., Kamberović, Željko, Dimitrijević, Stevan, "Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching" in International Journal of Refractory Metals & Hard Materials, 101 (2021),
https://doi.org/10.1016/j.ijrmhm.2021.105695 . .

TY  - JOUR
AU  - Dimitrijevic, Silvana B.
AU  - Alagic, Sladana
AU  - Pavlovic, Sonja
AU  - Stankovic, Biljana
AU  - Kotur, Nikola
AU  - Ivanovic, Aleksandra
AU  - Dimitrijević, Stevan
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4822
AB  - The study presents the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay results on human erythroleukemia K562 cell line to compare the toxicity of electrolytes based on the mercaptotriazole gold complex (Au-MT) and gold potassium cyanide. Solutions immediately after mixing and after three months at different concentrations were compared, with a prolonged aging period, to a year, for the electrolytes at pH = 9. Lower toxicity of new organic gold complex at pH = 4, 7, and 12 than of alkaline cyanide electrolyte, but higher at pH = 2, was determined. The solution of the Au-MT at pH = 9 had comparable, but lower cell toxicity in the whole investigated period.
T2  - Journal of the Indian Chemical Society
T1  - Cytotoxicity of the gold complex based on mercaptotriazole - A comparison with the conventional cyanide electrolyte
IS  - 11
VL  - 98
DO  - 10.1016/j.jics.2021.100219
ER  - 

@article{
author = "Dimitrijevic, Silvana B. and Alagic, Sladana and Pavlovic, Sonja and Stankovic, Biljana and Kotur, Nikola and Ivanovic, Aleksandra and Dimitrijević, Stevan",
year = "2021",
abstract = "The study presents the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay results on human erythroleukemia K562 cell line to compare the toxicity of electrolytes based on the mercaptotriazole gold complex (Au-MT) and gold potassium cyanide. Solutions immediately after mixing and after three months at different concentrations were compared, with a prolonged aging period, to a year, for the electrolytes at pH = 9. Lower toxicity of new organic gold complex at pH = 4, 7, and 12 than of alkaline cyanide electrolyte, but higher at pH = 2, was determined. The solution of the Au-MT at pH = 9 had comparable, but lower cell toxicity in the whole investigated period.",
journal = "Journal of the Indian Chemical Society",
title = "Cytotoxicity of the gold complex based on mercaptotriazole - A comparison with the conventional cyanide electrolyte",
number = "11",
volume = "98",
doi = "10.1016/j.jics.2021.100219"
}

Dimitrijevic, S. B., Alagic, S., Pavlovic, S., Stankovic, B., Kotur, N., Ivanovic, A.,& Dimitrijević, S.. (2021). Cytotoxicity of the gold complex based on mercaptotriazole - A comparison with the conventional cyanide electrolyte. in Journal of the Indian Chemical Society, 98(11).
https://doi.org/10.1016/j.jics.2021.100219

Dimitrijevic SB, Alagic S, Pavlovic S, Stankovic B, Kotur N, Ivanovic A, Dimitrijević S. Cytotoxicity of the gold complex based on mercaptotriazole - A comparison with the conventional cyanide electrolyte. in Journal of the Indian Chemical Society. 2021;98(11).
doi:10.1016/j.jics.2021.100219 .

Dimitrijevic, Silvana B., Alagic, Sladana, Pavlovic, Sonja, Stankovic, Biljana, Kotur, Nikola, Ivanovic, Aleksandra, Dimitrijević, Stevan, "Cytotoxicity of the gold complex based on mercaptotriazole - A comparison with the conventional cyanide electrolyte" in Journal of the Indian Chemical Society, 98, no. 11 (2021),
https://doi.org/10.1016/j.jics.2021.100219 . .

TY  - JOUR
AU  - Stevanović, Dimitrije
AU  - Dimitrijević, Stevan
AU  - Kamberović, Željko
AU  - Parežanin, Vladimir
AU  - Dimitrijević, Silvana
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5
AB  - This study addresses the influence of heat treatment and alumina coating on the corrosion of EN 1.4713 steel in 0.1 mol dm(-3) sulfuric acid. The corrosion characteristics of three different samples are examined using the open circuit potential measurements, Tafel extrapolation, linear polarization resistance, weight-loss method, and electrochemical impedance spectroscopy. The results showed that the application of the weight-loss method yielded similar values to the electrochemical method in the first 24 h. A decrease in corrosion rate, in a similar manner, was observed for all three samples. The largest deacceleration was obtained for the alumina/titania-coated sample. It was obtained that the heat treatment significantly increased the corrosion resistance, but only in the first 24 h. The alumina/titania coating decreases the corrosion rate by approximately 30 times at the beginning of the corrosion exposure and by nearly 300 times after 240 h. This coating could have a significant influence on construction design, which uses ferritic stainless steel as the material.
PB  - John Wiley and Sons Inc.
T2  - Materials and Corrosion
T1  - Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al2O3-TiO2 coating
EP  - 1020
IS  - 6
SP  - 1010
VL  - 72
DO  - 10.1002/maco.202012197
ER  - 

@article{
author = "Stevanović, Dimitrije and Dimitrijević, Stevan and Kamberović, Željko and Parežanin, Vladimir and Dimitrijević, Silvana",
year = "2021",
abstract = "This study addresses the influence of heat treatment and alumina coating on the corrosion of EN 1.4713 steel in 0.1 mol dm(-3) sulfuric acid. The corrosion characteristics of three different samples are examined using the open circuit potential measurements, Tafel extrapolation, linear polarization resistance, weight-loss method, and electrochemical impedance spectroscopy. The results showed that the application of the weight-loss method yielded similar values to the electrochemical method in the first 24 h. A decrease in corrosion rate, in a similar manner, was observed for all three samples. The largest deacceleration was obtained for the alumina/titania-coated sample. It was obtained that the heat treatment significantly increased the corrosion resistance, but only in the first 24 h. The alumina/titania coating decreases the corrosion rate by approximately 30 times at the beginning of the corrosion exposure and by nearly 300 times after 240 h. This coating could have a significant influence on construction design, which uses ferritic stainless steel as the material.",
publisher = "John Wiley and Sons Inc.",
journal = "Materials and Corrosion",
title = "Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al2O3-TiO2 coating",
pages = "1020-1010",
number = "6",
volume = "72",
doi = "10.1002/maco.202012197"
}

Stevanović, D., Dimitrijević, S., Kamberović, Ž., Parežanin, V.,& Dimitrijević, S.. (2021). Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al2O3-TiO2 coating. in Materials and Corrosion
John Wiley and Sons Inc.., 72(6), 1010-1020.
https://doi.org/10.1002/maco.202012197

Stevanović D, Dimitrijević S, Kamberović Ž, Parežanin V, Dimitrijević S. Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al2O3-TiO2 coating. in Materials and Corrosion. 2021;72(6):1010-1020.
doi:10.1002/maco.202012197 .

Stevanović, Dimitrije, Dimitrijević, Stevan, Kamberović, Željko, Parežanin, Vladimir, Dimitrijević, Silvana, "Improvement of the corrosion characteristics of 1.4713 ferritic steel in 0.1 M sulfuric acid by heat treatment and Al2O3-TiO2 coating" in Materials and Corrosion, 72, no. 6 (2021):1010-1020,
https://doi.org/10.1002/maco.202012197 . .