TY  - JOUR
AU  - Marković, Snežana
AU  - Radojković, Bojana
AU  - Jegdić, Bore
AU  - Jovanović, Aleksandar
AU  - Stojanović, Jovica
AU  - Trumić, Milan
AU  - Manojlović, Vaso
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7408
AB  - The corrosion behaviour of three types of alloys (two low-alloy carbon steel and one stainless iron with ~15 wt.% Cr), in a solution which simulates seawater (3% NaCl solution, pH 8.1) was tested. Tested samples are used to make steel (iron) balls applied in mils for grinding copper and other ore. The corrosion tests were performed using three electrochemical methods, at room temperature in the presence of atmospheric oxygen. The linear polarization resistance (LPR) method, electrochemical impedance spectroscopy (EIS) method, and linear sweep voltammetry (LSV) method were applied. Based on measurements by LPR and EIS methods (as non-destructive methods), the value of polarization resistance (Rp) was determined and the general corrosion rate (vcorr) of the examined samples was calculated. The obtained values of the general corrosion rate can be used to calculate the service life of steel (iron) balls under exploitation conditions (seawater). The appearance of the surface after linear sweep voltammetry (LSV) measurement showed the presence of localized corrosion (pits were formed) of the tested samples, especially stainless iron, and the LSV method is not suitable for the determination of the general corrosion rate of tested samples in seawater. This form of corrosion occurs at high anodic polarizations, during performing LSV measurements.
AB  - Ispitivano  je  koroziono  ponašanje  tri  vrste legura(dva  nisko-legirana  ugljenična  čelika  i  jedanuzorakje nerđajuće gvožđe sa ~15% Cr), u rastvoru koji simulira morsku vodu (3% rastvor NaCl, pH 8,1). Ispitani uzorcise koriste za proizvodnju čeličnih kugli koje se primenjuju u mlinovima za mlevenje  bakarnih  i  drugih  ruda. Koroziona  ispitivanja  su  izvedena  primenom  tri  elektrohemijske metode, na sobnoj temperaturi u prisustvu atmosferskog kiseonika. Korišćene su metoda linearne polarizacione   otpornosti   (LPR),   metoda   elektrohemijske   impedansne   spektroskopije   (EIS)   i metoda  linearne  promene  potencijala  (LSV).  Na  osnovu  merenja  LPR  i  EIS  metodama  (kao nerazarajućim  metodama),  određena  je  vrednost  polarizacione  otpornosti  (Rp),   a   zatim   je izračunata vrednost brzine opšte korozije (vkor)  ispitivanih uzoraka.  Dobijene  vrednosti  za  brzinu opšte  korozije  se  mogu  koristiti  za  izračunavanje  veka  trajanja  kugli  u  uslovima  eksploatacije (morska  voda).  Izgled  površine  ispitivanih uzorakanakon  izvođenja  LSV  metode  pokazao  je prisustvo  lokalizovane  korozije  (formirane  su  jamice,  pitovi)  na  ispitivanim uzorcima,  posebno  na nerđajućem gvožđu. Prema tome, LSV metoda nije pogodna za određivanje brzine opšte korozije ispitivanih čelika u morskoj vodi. Ovaj oblik korozije javlja se pri visokim anodnim polarizacijama tokom izvođenja LSV merenja.
PB  - Inženjersko društvo za koroziju
T2  - Zaštita materijala
T1  - Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution
T1  - Koroziono ponašanje čeličnih kuglica za mlevenje sa visokim i niskim sadržajem hroma u rastvoru hlorida
EP  - 53
IS  - 1
SP  - 45
VL  - 65
DO  - 10.62638/zasmat998
ER  - 

@article{
author = "Marković, Snežana and Radojković, Bojana and Jegdić, Bore and Jovanović, Aleksandar and Stojanović, Jovica and Trumić, Milan and Manojlović, Vaso",
year = "2024",
abstract = "The corrosion behaviour of three types of alloys (two low-alloy carbon steel and one stainless iron with ~15 wt.% Cr), in a solution which simulates seawater (3% NaCl solution, pH 8.1) was tested. Tested samples are used to make steel (iron) balls applied in mils for grinding copper and other ore. The corrosion tests were performed using three electrochemical methods, at room temperature in the presence of atmospheric oxygen. The linear polarization resistance (LPR) method, electrochemical impedance spectroscopy (EIS) method, and linear sweep voltammetry (LSV) method were applied. Based on measurements by LPR and EIS methods (as non-destructive methods), the value of polarization resistance (Rp) was determined and the general corrosion rate (vcorr) of the examined samples was calculated. The obtained values of the general corrosion rate can be used to calculate the service life of steel (iron) balls under exploitation conditions (seawater). The appearance of the surface after linear sweep voltammetry (LSV) measurement showed the presence of localized corrosion (pits were formed) of the tested samples, especially stainless iron, and the LSV method is not suitable for the determination of the general corrosion rate of tested samples in seawater. This form of corrosion occurs at high anodic polarizations, during performing LSV measurements., Ispitivano  je  koroziono  ponašanje  tri  vrste legura(dva  nisko-legirana  ugljenična  čelika  i  jedanuzorakje nerđajuće gvožđe sa ~15% Cr), u rastvoru koji simulira morsku vodu (3% rastvor NaCl, pH 8,1). Ispitani uzorcise koriste za proizvodnju čeličnih kugli koje se primenjuju u mlinovima za mlevenje  bakarnih  i  drugih  ruda. Koroziona  ispitivanja  su  izvedena  primenom  tri  elektrohemijske metode, na sobnoj temperaturi u prisustvu atmosferskog kiseonika. Korišćene su metoda linearne polarizacione   otpornosti   (LPR),   metoda   elektrohemijske   impedansne   spektroskopije   (EIS)   i metoda  linearne  promene  potencijala  (LSV).  Na  osnovu  merenja  LPR  i  EIS  metodama  (kao nerazarajućim  metodama),  određena  je  vrednost  polarizacione  otpornosti  (Rp),   a   zatim   je izračunata vrednost brzine opšte korozije (vkor)  ispitivanih uzoraka.  Dobijene  vrednosti  za  brzinu opšte  korozije  se  mogu  koristiti  za  izračunavanje  veka  trajanja  kugli  u  uslovima  eksploatacije (morska  voda).  Izgled  površine  ispitivanih uzorakanakon  izvođenja  LSV  metode  pokazao  je prisustvo  lokalizovane  korozije  (formirane  su  jamice,  pitovi)  na  ispitivanim uzorcima,  posebno  na nerđajućem gvožđu. Prema tome, LSV metoda nije pogodna za određivanje brzine opšte korozije ispitivanih čelika u morskoj vodi. Ovaj oblik korozije javlja se pri visokim anodnim polarizacijama tokom izvođenja LSV merenja.",
publisher = "Inženjersko društvo za koroziju",
journal = "Zaštita materijala",
title = "Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution, Koroziono ponašanje čeličnih kuglica za mlevenje sa visokim i niskim sadržajem hroma u rastvoru hlorida",
pages = "53-45",
number = "1",
volume = "65",
doi = "10.62638/zasmat998"
}

Marković, S., Radojković, B., Jegdić, B., Jovanović, A., Stojanović, J., Trumić, M.,& Manojlović, V.. (2024). Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution. in Zaštita materijala
Inženjersko društvo za koroziju., 65(1), 45-53.
https://doi.org/10.62638/zasmat998

Marković S, Radojković B, Jegdić B, Jovanović A, Stojanović J, Trumić M, Manojlović V. Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution. in Zaštita materijala. 2024;65(1):45-53.
doi:10.62638/zasmat998 .

Marković, Snežana, Radojković, Bojana, Jegdić, Bore, Jovanović, Aleksandar, Stojanović, Jovica, Trumić, Milan, Manojlović, Vaso, "Corrosion behavior of high- and low-chromium steel grinding balls in chloride solution" in Zaštita materijala, 65, no. 1 (2024):45-53,
https://doi.org/10.62638/zasmat998 . .

TY  - JOUR
AU  - Kamberović, Željko
AU  - Ranitović, Milisav
AU  - Manojlović, Vaso
AU  - Jevtić, Sanja
AU  - Gajić, Nataša
AU  - Štulović, Marija
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6624
AB  - Jarosite is a specific type of hazardous waste determined by the origin of the primary raw materials of the hydrometallurgical process of zinc production. It represents a very demanding raw material for further treatment and recover of valuable metals due to their complex phase structures. The aim of this study was to collect relevant data for the designing the process of thermal decomposition of jarosite Pb–Ag sludge desired structure, which includes the transformation of Fe(II) and Fe(III) sulfates to insoluble hematite, retention of Cu, Zn and In in the form of soluble sulfates, with the possibility of their subsequent valorization by hydrometallurgical methods. Thermal decomposition of the industrial sample of jarosite Pb–Ag sludge is investigated under different temperatures (670–750 °C) and atmospheres (air and nitrogen) by thermodynamic, thermogravimetric and kinetic analysis. Physicochemical characterization of samples was done by ICP-MS, AAS, IMS, XRD, SEM techniques. The examined sample is ammonium jarosite type with the dominant phases NH4Fe3(SO4)2(OH)6 × H2O (44.00%) and ZnFe2O4 (15.25%). Experimental results, physicochemical characterization and thermodynamic analysis confirmed that the maximum content of hematite (Fe2O3) and metal sulfates (Cu, Pb and Zn), as required compounds for selective metal extraction, without the presence of unreacted ammonium jarosite, was obtained at 730 °C. A kinetic study obtained by thermogravimetric analysis showed that the thermal decomposition of jarosite Pb–Ag sludge takes place in two phases. The activation energy, calculated using the Kissinger–Akahira–Sunose iso-conversion method, was 235.4 kJ mol−1 and 208.8 kJ mol−1 for the decomposition of jarosite in air and nitrogen, respectively.
PB  - Springer Science and Business Media B.V.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Thermodynamic and kinetic analysis of jarosite Pb–Ag sludge thermal decomposition for hydrometallurgical utilization of valuable elements
EP  - 11810
IS  - 21
SP  - 11799
VL  - 148
DO  - 10.1007/s10973-023-12508-3
ER  - 

@article{
author = "Kamberović, Željko and Ranitović, Milisav and Manojlović, Vaso and Jevtić, Sanja and Gajić, Nataša and Štulović, Marija",
year = "2023",
abstract = "Jarosite is a specific type of hazardous waste determined by the origin of the primary raw materials of the hydrometallurgical process of zinc production. It represents a very demanding raw material for further treatment and recover of valuable metals due to their complex phase structures. The aim of this study was to collect relevant data for the designing the process of thermal decomposition of jarosite Pb–Ag sludge desired structure, which includes the transformation of Fe(II) and Fe(III) sulfates to insoluble hematite, retention of Cu, Zn and In in the form of soluble sulfates, with the possibility of their subsequent valorization by hydrometallurgical methods. Thermal decomposition of the industrial sample of jarosite Pb–Ag sludge is investigated under different temperatures (670–750 °C) and atmospheres (air and nitrogen) by thermodynamic, thermogravimetric and kinetic analysis. Physicochemical characterization of samples was done by ICP-MS, AAS, IMS, XRD, SEM techniques. The examined sample is ammonium jarosite type with the dominant phases NH4Fe3(SO4)2(OH)6 × H2O (44.00%) and ZnFe2O4 (15.25%). Experimental results, physicochemical characterization and thermodynamic analysis confirmed that the maximum content of hematite (Fe2O3) and metal sulfates (Cu, Pb and Zn), as required compounds for selective metal extraction, without the presence of unreacted ammonium jarosite, was obtained at 730 °C. A kinetic study obtained by thermogravimetric analysis showed that the thermal decomposition of jarosite Pb–Ag sludge takes place in two phases. The activation energy, calculated using the Kissinger–Akahira–Sunose iso-conversion method, was 235.4 kJ mol−1 and 208.8 kJ mol−1 for the decomposition of jarosite in air and nitrogen, respectively.",
publisher = "Springer Science and Business Media B.V.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Thermodynamic and kinetic analysis of jarosite Pb–Ag sludge thermal decomposition for hydrometallurgical utilization of valuable elements",
pages = "11810-11799",
number = "21",
volume = "148",
doi = "10.1007/s10973-023-12508-3"
}

Kamberović, Ž., Ranitović, M., Manojlović, V., Jevtić, S., Gajić, N.,& Štulović, M.. (2023). Thermodynamic and kinetic analysis of jarosite Pb–Ag sludge thermal decomposition for hydrometallurgical utilization of valuable elements. in Journal of Thermal Analysis and Calorimetry
Springer Science and Business Media B.V.., 148(21), 11799-11810.
https://doi.org/10.1007/s10973-023-12508-3

Kamberović Ž, Ranitović M, Manojlović V, Jevtić S, Gajić N, Štulović M. Thermodynamic and kinetic analysis of jarosite Pb–Ag sludge thermal decomposition for hydrometallurgical utilization of valuable elements. in Journal of Thermal Analysis and Calorimetry. 2023;148(21):11799-11810.
doi:10.1007/s10973-023-12508-3 .

Kamberović, Željko, Ranitović, Milisav, Manojlović, Vaso, Jevtić, Sanja, Gajić, Nataša, Štulović, Marija, "Thermodynamic and kinetic analysis of jarosite Pb–Ag sludge thermal decomposition for hydrometallurgical utilization of valuable elements" in Journal of Thermal Analysis and Calorimetry, 148, no. 21 (2023):11799-11810,
https://doi.org/10.1007/s10973-023-12508-3 . .

TY  - JOUR
AU  - Marković, Gordana
AU  - Manojlović, Vaso
AU  - Ružić, Jovana
AU  - Sokić, Miroslav
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6729
AB  - Titanium alloys have been present for decades as the main components for the production of various orthopedic and dental elements. However, modern times require titanium alloys with a low Young’s modulus, and without the presence of cytotoxic alloying elements. Machine learning was used with aim to analyze biocompatible titanium alloys and predict the composition of Ti alloys with a low Young’s modulus. A database was created using experimental data for alloy composition, Young’s modulus, and mechanical and thermal properties of biocompatible titanium alloys. The Extra Tree Regression model was built to predict the Young’s modulus of titanium alloys. By processing data of 246 alloys, the specific heat was discovered to be the most influential parameter that contributes to the lowering of the Young’s modulus of titanium alloys. Further, the Monte Carlo method was used to predict the composition of future alloys with the desired properties. Simulation results of ten million samples, with predefined conditions for obtaining titanium alloys with a Young’s modulus lower than 70 GPa, show that it is possible to obtain several multicomponent alloys, consisting of five main elements: titanium, zirconium, tin, manganese and niobium.
PB  - MDPI
T2  - Materials
T1  - Predicting Low-Modulus Biocompatible Titanium Alloys Using Machine Learning
IS  - 19
SP  - 6355
VL  - 16
DO  - 10.3390/ma16196355
ER  - 

@article{
author = "Marković, Gordana and Manojlović, Vaso and Ružić, Jovana and Sokić, Miroslav",
year = "2023",
abstract = "Titanium alloys have been present for decades as the main components for the production of various orthopedic and dental elements. However, modern times require titanium alloys with a low Young’s modulus, and without the presence of cytotoxic alloying elements. Machine learning was used with aim to analyze biocompatible titanium alloys and predict the composition of Ti alloys with a low Young’s modulus. A database was created using experimental data for alloy composition, Young’s modulus, and mechanical and thermal properties of biocompatible titanium alloys. The Extra Tree Regression model was built to predict the Young’s modulus of titanium alloys. By processing data of 246 alloys, the specific heat was discovered to be the most influential parameter that contributes to the lowering of the Young’s modulus of titanium alloys. Further, the Monte Carlo method was used to predict the composition of future alloys with the desired properties. Simulation results of ten million samples, with predefined conditions for obtaining titanium alloys with a Young’s modulus lower than 70 GPa, show that it is possible to obtain several multicomponent alloys, consisting of five main elements: titanium, zirconium, tin, manganese and niobium.",
publisher = "MDPI",
journal = "Materials",
title = "Predicting Low-Modulus Biocompatible Titanium Alloys Using Machine Learning",
number = "19",
pages = "6355",
volume = "16",
doi = "10.3390/ma16196355"
}

Marković, G., Manojlović, V., Ružić, J.,& Sokić, M.. (2023). Predicting Low-Modulus Biocompatible Titanium Alloys Using Machine Learning. in Materials
MDPI., 16(19), 6355.
https://doi.org/10.3390/ma16196355

Marković G, Manojlović V, Ružić J, Sokić M. Predicting Low-Modulus Biocompatible Titanium Alloys Using Machine Learning. in Materials. 2023;16(19):6355.
doi:10.3390/ma16196355 .

Marković, Gordana, Manojlović, Vaso, Ružić, Jovana, Sokić, Miroslav, "Predicting Low-Modulus Biocompatible Titanium Alloys Using Machine Learning" in Materials, 16, no. 19 (2023):6355,
https://doi.org/10.3390/ma16196355 . .

TY  - JOUR
AU  - Milojkov, Dušan V.
AU  - Sokić, Miroslav D.
AU  - Živković-Radovanović, Vukosava
AU  - Manojlović, Vaso D.
AU  - Mutavdžić, Dragosav R.
AU  - Janjić, Goran V.
AU  - Radotić, Ksenija
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5279
AB  - In this study, luminescence and antibacterial behavior of pure fluorapatite (FAp) and praseodymium-nitrate-carbonate co-doped fluorapatite (PrNCFAp) nanopowders were investigated. Uniform nanopowders were synthesized by precipitation reaction followed by centrifugation and systematically characterized by XRD, FTIR, SEM–EDS, TG and PL methods. XRD analysis revealed the formation of hexagonal FAp crystals, and FTIR spectra indicate the presence of nitrate (NO3−) and carbonate (CO32−) species. SEM analyzes confirm agglomerates composed of irregular nanometer-sized spheres. Emission of FAp nanopowder occurred in the violet-blue region of the visible part of the spectrum, with redshift to the blue-green color region when Pr3+, NO3− and CO32− co-doped in the lattice. Analysis of luminescence spectra by MCR-ALS method extract three fluorophores from the PrNCFAp sample and showed simultaneous existents of emission-reabsorption-emission between dopants in FAp lattice. Antibacterial activity against pathogen Staphylococcus aureus was investigated before and after treatment of nanopowders by UVA radiation of 365 nm. Nanopowders irradiated with UVA compared to non-irradiated reduced Staphylococcus aureus by 84.9% for PrNCFAp and 33.3% for FAp in the first 0.5 h of contact, and 76.1% and 42.9% after 24 h of contact. In addition, the obtained luminescent nanomaterials showed a low degree of hemolytic activity and could potentially be candidates for further research in dentistry.
PB  - Springer
T2  - Optical and Quantum Electronics
T1  - Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions
IS  - 1
SP  - 84
VL  - 55
DO  - 10.1007/s11082-022-04347-7
ER  - 

@article{
author = "Milojkov, Dušan V. and Sokić, Miroslav D. and Živković-Radovanović, Vukosava and Manojlović, Vaso D. and Mutavdžić, Dragosav R. and Janjić, Goran V. and Radotić, Ksenija",
year = "2023",
abstract = "In this study, luminescence and antibacterial behavior of pure fluorapatite (FAp) and praseodymium-nitrate-carbonate co-doped fluorapatite (PrNCFAp) nanopowders were investigated. Uniform nanopowders were synthesized by precipitation reaction followed by centrifugation and systematically characterized by XRD, FTIR, SEM–EDS, TG and PL methods. XRD analysis revealed the formation of hexagonal FAp crystals, and FTIR spectra indicate the presence of nitrate (NO3−) and carbonate (CO32−) species. SEM analyzes confirm agglomerates composed of irregular nanometer-sized spheres. Emission of FAp nanopowder occurred in the violet-blue region of the visible part of the spectrum, with redshift to the blue-green color region when Pr3+, NO3− and CO32− co-doped in the lattice. Analysis of luminescence spectra by MCR-ALS method extract three fluorophores from the PrNCFAp sample and showed simultaneous existents of emission-reabsorption-emission between dopants in FAp lattice. Antibacterial activity against pathogen Staphylococcus aureus was investigated before and after treatment of nanopowders by UVA radiation of 365 nm. Nanopowders irradiated with UVA compared to non-irradiated reduced Staphylococcus aureus by 84.9% for PrNCFAp and 33.3% for FAp in the first 0.5 h of contact, and 76.1% and 42.9% after 24 h of contact. In addition, the obtained luminescent nanomaterials showed a low degree of hemolytic activity and could potentially be candidates for further research in dentistry.",
publisher = "Springer",
journal = "Optical and Quantum Electronics",
title = "Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions",
number = "1",
pages = "84",
volume = "55",
doi = "10.1007/s11082-022-04347-7"
}

Milojkov, D. V., Sokić, M. D., Živković-Radovanović, V., Manojlović, V. D., Mutavdžić, D. R., Janjić, G. V.,& Radotić, K.. (2023). Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions. in Optical and Quantum Electronics
Springer., 55(1), 84.
https://doi.org/10.1007/s11082-022-04347-7

Milojkov DV, Sokić MD, Živković-Radovanović V, Manojlović VD, Mutavdžić DR, Janjić GV, Radotić K. Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions. in Optical and Quantum Electronics. 2023;55(1):84.
doi:10.1007/s11082-022-04347-7 .

Milojkov, Dušan V., Sokić, Miroslav D., Živković-Radovanović, Vukosava, Manojlović, Vaso D., Mutavdžić, Dragosav R., Janjić, Goran V., Radotić, Ksenija, "Cascade luminescence and antibacterial behavior of fluorapatite nanopowder co-doped with Pr3+, NO3− and CO32− ions" in Optical and Quantum Electronics, 55, no. 1 (2023):84,
https://doi.org/10.1007/s11082-022-04347-7 . .

TY  - JOUR
AU  - Popović, Andjelka
AU  - Manojlović, Vaso
AU  - Adnadjević, Borivoj
AU  - Petrović, Jelena
AU  - Kamberović, Željko
AU  - Ranitović, Milisav
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5162
AB  - The influence of the multi-stage electrostatic separation (ESS) of mechanically treated and magnetically separated waste electronic material and the pyrolysis of the selected ESS fraction on the distribution of metal elements (MEs), elements contained in refractory oxides (EROs), bromine (Br), and rare-earth elements (REEs) contained in waste electronic material was studied. The concentration of MEs, Br, and EROs in the tested samples was determined by X-ray fluorescence analysis, and the concentration of REEs and uranium was determined by inductively coupled plasma mass spectrometry (ICP-MS). The analysis of the distribution of elements during the multi-stage ESS showed that MEs were predominantly distributed in the conductive fraction and Br, EROs, and REEs were distributed in the nonconductive fraction. The nonconductive fraction (NC2) of the two-stage ESS was subjected to a low-temperature vacuum pyrolysis (T = 550◦C, p = 10 mbar). The distribution of pyrolysis products of the NC2 fraction was determined. The main products of the vacuum pyrolysis experiments were the solid residue phase (54.4 wt.%) and oils (35.4 wt.%). It has been proven that pyrolysis can significantly increase the concentration of MEs, EROs, and REEs in raw materials, thereby providing a method for cost-effectively obtaining of REEs from waste printed circuit boards.
PB  - MDPI
T2  - Processes
T1  - Recovery of Rare-Earth Elements from Printed Circuit Boards by Vacuum Pyrolysis and Multiple Electrostatic Separation
IS  - 6
SP  - 1152
VL  - 10
DO  - 10.3390/pr10061152
ER  - 

@article{
author = "Popović, Andjelka and Manojlović, Vaso and Adnadjević, Borivoj and Petrović, Jelena and Kamberović, Željko and Ranitović, Milisav",
year = "2022",
abstract = "The influence of the multi-stage electrostatic separation (ESS) of mechanically treated and magnetically separated waste electronic material and the pyrolysis of the selected ESS fraction on the distribution of metal elements (MEs), elements contained in refractory oxides (EROs), bromine (Br), and rare-earth elements (REEs) contained in waste electronic material was studied. The concentration of MEs, Br, and EROs in the tested samples was determined by X-ray fluorescence analysis, and the concentration of REEs and uranium was determined by inductively coupled plasma mass spectrometry (ICP-MS). The analysis of the distribution of elements during the multi-stage ESS showed that MEs were predominantly distributed in the conductive fraction and Br, EROs, and REEs were distributed in the nonconductive fraction. The nonconductive fraction (NC2) of the two-stage ESS was subjected to a low-temperature vacuum pyrolysis (T = 550◦C, p = 10 mbar). The distribution of pyrolysis products of the NC2 fraction was determined. The main products of the vacuum pyrolysis experiments were the solid residue phase (54.4 wt.%) and oils (35.4 wt.%). It has been proven that pyrolysis can significantly increase the concentration of MEs, EROs, and REEs in raw materials, thereby providing a method for cost-effectively obtaining of REEs from waste printed circuit boards.",
publisher = "MDPI",
journal = "Processes",
title = "Recovery of Rare-Earth Elements from Printed Circuit Boards by Vacuum Pyrolysis and Multiple Electrostatic Separation",
number = "6",
pages = "1152",
volume = "10",
doi = "10.3390/pr10061152"
}

Popović, A., Manojlović, V., Adnadjević, B., Petrović, J., Kamberović, Ž.,& Ranitović, M.. (2022). Recovery of Rare-Earth Elements from Printed Circuit Boards by Vacuum Pyrolysis and Multiple Electrostatic Separation. in Processes
MDPI., 10(6), 1152.
https://doi.org/10.3390/pr10061152

Popović A, Manojlović V, Adnadjević B, Petrović J, Kamberović Ž, Ranitović M. Recovery of Rare-Earth Elements from Printed Circuit Boards by Vacuum Pyrolysis and Multiple Electrostatic Separation. in Processes. 2022;10(6):1152.
doi:10.3390/pr10061152 .

Popović, Andjelka, Manojlović, Vaso, Adnadjević, Borivoj, Petrović, Jelena, Kamberović, Željko, Ranitović, Milisav, "Recovery of Rare-Earth Elements from Printed Circuit Boards by Vacuum Pyrolysis and Multiple Electrostatic Separation" in Processes, 10, no. 6 (2022):1152,
https://doi.org/10.3390/pr10061152 . .

TY  - JOUR
AU  - Manojlović, Vaso
AU  - Kamberović, Željko
AU  - Korać, Marija
AU  - Dotlić, Milan
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5334
AB  - The electric arc furnace has been the subject of extensive research due to its complex and chaotic nature. Machine learning methods provide a powerful forensic examination of industrial processes as they exclude numerous assumptions and involve irregularities present in industrial conditions. In this study, different machine learning and data processing methods were used to evaluate the energy efficiency parameters of the electric arc furnace process. The dataset was collected over five years, in a steelmaking factory, with 42 features. This data was split into training and test sets, which were used for training and evaluation, respectively. With extensive data management, the data quality and machine learning model performance were improved. It was found that selected models display similar performance, yet the artificial neural network shows greater flexibility when changing targets. The results indicate that a data-centric rather than model-centric approach is better for improving model performance. Using the partial dependence plot and SHAP method, insight was gained into each parameter's correlation with the target. It was found that the amount of hot heel (melted steel left in the furnace, to be re-heated) was the main factor disturbing the data quality and model performance. It was also demonstrated that data for total oxygen consumption should be divided from the oxygen used into refining and natural gas. This highly improves model performance. Employing a data-centric machine learning model to control and optimize main process parameters (with a small capital investment) leads to lower energy consumption for industrial processes.
PB  - Elsevier Ltd.
T2  - Applied Energy
T1  - Machine learning analysis of electric arc furnace process for the evaluation of energy efficiency parameters
SP  - 118209
VL  - 307
DO  - 10.1016/j.apenergy.2021.118209
ER  - 

@article{
author = "Manojlović, Vaso and Kamberović, Željko and Korać, Marija and Dotlić, Milan",
year = "2022",
abstract = "The electric arc furnace has been the subject of extensive research due to its complex and chaotic nature. Machine learning methods provide a powerful forensic examination of industrial processes as they exclude numerous assumptions and involve irregularities present in industrial conditions. In this study, different machine learning and data processing methods were used to evaluate the energy efficiency parameters of the electric arc furnace process. The dataset was collected over five years, in a steelmaking factory, with 42 features. This data was split into training and test sets, which were used for training and evaluation, respectively. With extensive data management, the data quality and machine learning model performance were improved. It was found that selected models display similar performance, yet the artificial neural network shows greater flexibility when changing targets. The results indicate that a data-centric rather than model-centric approach is better for improving model performance. Using the partial dependence plot and SHAP method, insight was gained into each parameter's correlation with the target. It was found that the amount of hot heel (melted steel left in the furnace, to be re-heated) was the main factor disturbing the data quality and model performance. It was also demonstrated that data for total oxygen consumption should be divided from the oxygen used into refining and natural gas. This highly improves model performance. Employing a data-centric machine learning model to control and optimize main process parameters (with a small capital investment) leads to lower energy consumption for industrial processes.",
publisher = "Elsevier Ltd.",
journal = "Applied Energy",
title = "Machine learning analysis of electric arc furnace process for the evaluation of energy efficiency parameters",
pages = "118209",
volume = "307",
doi = "10.1016/j.apenergy.2021.118209"
}

Manojlović, V., Kamberović, Ž., Korać, M.,& Dotlić, M.. (2022). Machine learning analysis of electric arc furnace process for the evaluation of energy efficiency parameters. in Applied Energy
Elsevier Ltd.., 307, 118209.
https://doi.org/10.1016/j.apenergy.2021.118209

Manojlović V, Kamberović Ž, Korać M, Dotlić M. Machine learning analysis of electric arc furnace process for the evaluation of energy efficiency parameters. in Applied Energy. 2022;307:118209.
doi:10.1016/j.apenergy.2021.118209 .

Manojlović, Vaso, Kamberović, Željko, Korać, Marija, Dotlić, Milan, "Machine learning analysis of electric arc furnace process for the evaluation of energy efficiency parameters" in Applied Energy, 307 (2022):118209,
https://doi.org/10.1016/j.apenergy.2021.118209 . .

TY  - JOUR
AU  - Tomić, Nataša Z.
AU  - Marinković, Aleksandar D.
AU  - Balanč, Bojana
AU  - Obradović, Vera
AU  - Pavlović, Vladimir
AU  - Manojlović, Vaso
AU  - Vuksanović, Marija M.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4944
AB  - Intelligent pedestrian crossings were made with the aim to increase pedestrian safety at poorly lit locations. New technologies include the design of polymer materials that have high performance by optimizing properties such as compression, tensile and impact strengths, wear resistance, hardness and transparency. The desired properties are set up to face the demands of a heavy daily traffic load and enable the functionality. Laminate material consists of the epoxy composite reinforced with silica (SiO2) derived from rice husk waste and a protective thermoplastic polyurethane layer. The top layer of the laminate material is a transparent thermoplastic polyurethane (TPU) serving as a protective layer with high wear resistance and good adhesion with epoxy composite. Silica obtained from rice husk waste was used in reinforcing of the epoxide in order to improve the mechanical properties, diffuse the light, improve the adhesion with TPU and decrease the production costs. Micro-Vickers hardness of the epoxy composite was increased by 70% with the addition of 15 wt% of SiO2. Impact energy of the epoxy composite with 15 wt% of SiO2 was increased by 272.9% after adding the TPU layer. Compressive strength of the epoxy resin is improved by 16.2% by reinforcement with 15 wt% of SiO2, while the laminate composite material showed 207% higher compressive strength than the commonly used asphalt pavement. Moreover, the addition of 15 wt% of SiO2 improved the adhesion between epoxy composite and TPU layer (11.2%). Thus, obtained laminated material made of the epoxy composite with 15 wt% of SiO2 (obtained from rice husk waste) and TPU598 showed mechanical properties and LED light transmission/diffusion appropriate for application in the intelligent pedestrian crossings.
PB  - Springer Science and Business Media Deutschland GmbH
T2  - Iranian Polymer Journal
T1  - High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings
EP  - 330
IS  - 3
SP  - 319
VL  - 30
DO  - 10.1007/s13726-020-00894-6
ER  - 

@article{
author = "Tomić, Nataša Z. and Marinković, Aleksandar D. and Balanč, Bojana and Obradović, Vera and Pavlović, Vladimir and Manojlović, Vaso and Vuksanović, Marija M.",
year = "2021",
abstract = "Intelligent pedestrian crossings were made with the aim to increase pedestrian safety at poorly lit locations. New technologies include the design of polymer materials that have high performance by optimizing properties such as compression, tensile and impact strengths, wear resistance, hardness and transparency. The desired properties are set up to face the demands of a heavy daily traffic load and enable the functionality. Laminate material consists of the epoxy composite reinforced with silica (SiO2) derived from rice husk waste and a protective thermoplastic polyurethane layer. The top layer of the laminate material is a transparent thermoplastic polyurethane (TPU) serving as a protective layer with high wear resistance and good adhesion with epoxy composite. Silica obtained from rice husk waste was used in reinforcing of the epoxide in order to improve the mechanical properties, diffuse the light, improve the adhesion with TPU and decrease the production costs. Micro-Vickers hardness of the epoxy composite was increased by 70% with the addition of 15 wt% of SiO2. Impact energy of the epoxy composite with 15 wt% of SiO2 was increased by 272.9% after adding the TPU layer. Compressive strength of the epoxy resin is improved by 16.2% by reinforcement with 15 wt% of SiO2, while the laminate composite material showed 207% higher compressive strength than the commonly used asphalt pavement. Moreover, the addition of 15 wt% of SiO2 improved the adhesion between epoxy composite and TPU layer (11.2%). Thus, obtained laminated material made of the epoxy composite with 15 wt% of SiO2 (obtained from rice husk waste) and TPU598 showed mechanical properties and LED light transmission/diffusion appropriate for application in the intelligent pedestrian crossings.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Iranian Polymer Journal",
title = "High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings",
pages = "330-319",
number = "3",
volume = "30",
doi = "10.1007/s13726-020-00894-6"
}

Tomić, N. Z., Marinković, A. D., Balanč, B., Obradović, V., Pavlović, V., Manojlović, V.,& Vuksanović, M. M.. (2021). High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings. in Iranian Polymer Journal
Springer Science and Business Media Deutschland GmbH., 30(3), 319-330.
https://doi.org/10.1007/s13726-020-00894-6

Tomić NZ, Marinković AD, Balanč B, Obradović V, Pavlović V, Manojlović V, Vuksanović MM. High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings. in Iranian Polymer Journal. 2021;30(3):319-330.
doi:10.1007/s13726-020-00894-6 .

Tomić, Nataša Z., Marinković, Aleksandar D., Balanč, Bojana, Obradović, Vera, Pavlović, Vladimir, Manojlović, Vaso, Vuksanović, Marija M., "High-performance laminate material based on polyurethane and epoxide reinforced by silica particles from rice husk used for intelligent pedestrian crossings" in Iranian Polymer Journal, 30, no. 3 (2021):319-330,
https://doi.org/10.1007/s13726-020-00894-6 . .

TY  - JOUR
AU  - Milojkov, Dusan V.
AU  - Sokić, Miroslav
AU  - Radosavljevic-Mihajlovic, Ana
AU  - Stanic, Vojislav Dj.
AU  - Manojlović, Vaso
AU  - Mutavdzic, Dragosav R.
AU  - Milanovic, Marija
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4796
AB  - Coupled substitution of fluorapatite (FAP) crystal lattice plays an important role in the engineering of optically active nanomaterials. Uniform fluorapatite nanopowders doped with praseodymium (Pr3+) and carbonate (CO32-) ions have been successfully synthesized by precipitation method under room temperature (25 degrees C). The structural, morphological, chemical and optical properties of monophase material were characterized by X-ray diffraction (XRD), Fourier Transform Infrared and Far Infrared Spectroscopy (FTIR and FIR, respectively), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/EDS), Transmission Electron Microscopy (TEM) and Photoluminescence Spectroscopy (PL). Coupled substitution of FAP crystal lattice with Pr3+ and CO32- reduces the crystallite size with a constant c/a ratio of 1.72. FTIR study showed that synthesized nanopowders were AB-type CO32- substitution, and FIR study revealed new Pr-O vibrations. TEM analysis was found that synthesized nanopowders were composed of irregular spheres in the nanometer range. The fluorescence of FAP nanoparticles was in the violet-blue region of the visible part of the spectrum. When Pr3+ was doped in a lattice, the violet-blue emission becomes sharper due to reabsorption. MCR-ALS analyses of fluorescence spectra indicated the shift of the maximum to the blue color with the increase in the concentration of Pr3+ ions. Additionally, luminescent nanopowders demonstrated significant antibacterial activity against Escherichia coli. As the obtained nanoparticles showed a good absorption of ultraviolet A light and reabsorption of blue-green luminescence, they are suitable for further development of optically active nanomaterials for light filtering. Optically active PrCFAP nanopowders with antibacterial properties may be promising additives for the development of multifunctional cosmetic and health care products.
T2  - Metals
T1  - Influence of Pr3+ and CO32- Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation
IS  - 9
VL  - 11
DO  - 10.3390/met11091384
ER  - 

@article{
author = "Milojkov, Dusan V. and Sokić, Miroslav and Radosavljevic-Mihajlovic, Ana and Stanic, Vojislav Dj. and Manojlović, Vaso and Mutavdzic, Dragosav R. and Milanovic, Marija",
year = "2021",
abstract = "Coupled substitution of fluorapatite (FAP) crystal lattice plays an important role in the engineering of optically active nanomaterials. Uniform fluorapatite nanopowders doped with praseodymium (Pr3+) and carbonate (CO32-) ions have been successfully synthesized by precipitation method under room temperature (25 degrees C). The structural, morphological, chemical and optical properties of monophase material were characterized by X-ray diffraction (XRD), Fourier Transform Infrared and Far Infrared Spectroscopy (FTIR and FIR, respectively), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/EDS), Transmission Electron Microscopy (TEM) and Photoluminescence Spectroscopy (PL). Coupled substitution of FAP crystal lattice with Pr3+ and CO32- reduces the crystallite size with a constant c/a ratio of 1.72. FTIR study showed that synthesized nanopowders were AB-type CO32- substitution, and FIR study revealed new Pr-O vibrations. TEM analysis was found that synthesized nanopowders were composed of irregular spheres in the nanometer range. The fluorescence of FAP nanoparticles was in the violet-blue region of the visible part of the spectrum. When Pr3+ was doped in a lattice, the violet-blue emission becomes sharper due to reabsorption. MCR-ALS analyses of fluorescence spectra indicated the shift of the maximum to the blue color with the increase in the concentration of Pr3+ ions. Additionally, luminescent nanopowders demonstrated significant antibacterial activity against Escherichia coli. As the obtained nanoparticles showed a good absorption of ultraviolet A light and reabsorption of blue-green luminescence, they are suitable for further development of optically active nanomaterials for light filtering. Optically active PrCFAP nanopowders with antibacterial properties may be promising additives for the development of multifunctional cosmetic and health care products.",
journal = "Metals",
title = "Influence of Pr3+ and CO32- Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation",
number = "9",
volume = "11",
doi = "10.3390/met11091384"
}

Milojkov, D. V., Sokić, M., Radosavljevic-Mihajlovic, A., Stanic, V. Dj., Manojlović, V., Mutavdzic, D. R.,& Milanovic, M.. (2021). Influence of Pr3+ and CO32- Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation. in Metals, 11(9).
https://doi.org/10.3390/met11091384

Milojkov DV, Sokić M, Radosavljevic-Mihajlovic A, Stanic VD, Manojlović V, Mutavdzic DR, Milanovic M. Influence of Pr3+ and CO32- Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation. in Metals. 2021;11(9).
doi:10.3390/met11091384 .

Milojkov, Dusan V., Sokić, Miroslav, Radosavljevic-Mihajlovic, Ana, Stanic, Vojislav Dj., Manojlović, Vaso, Mutavdzic, Dragosav R., Milanovic, Marija, "Influence of Pr3+ and CO32- Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation" in Metals, 11, no. 9 (2021),
https://doi.org/10.3390/met11091384 . .

TY  - JOUR
AU  - Spasić, Aleksandar
AU  - Manojlović, Vaso
AU  - Jovanović, Mica
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4422
AB  - Applications of solvent extraction operations and processes play one of the most important roles in Hydrometallurgy. Therefore, in this brief review, some general concepts for selected representative applications are discussed. Also, one particular entrainment problem solution is discussed in some more details. At first, the selected general concepts for metal production of copper and uranium from their ores are presented. Then after, the leaching-solvent extraction-electro winning process for copper is shown. Finally, the extraction of uranium from wet phosphoric acid is discussed.
PB  - Association of Metallurgical Engineers of Serbia
T2  - Metallurgical & Materials Engineering
T1  - Solvent extraction and entrainment problem
EP  - 175
IS  - 2
SP  - 163
VL  - 26
DO  - 10.30544/480
ER  - 

@article{
author = "Spasić, Aleksandar and Manojlović, Vaso and Jovanović, Mica",
year = "2020",
abstract = "Applications of solvent extraction operations and processes play one of the most important roles in Hydrometallurgy. Therefore, in this brief review, some general concepts for selected representative applications are discussed. Also, one particular entrainment problem solution is discussed in some more details. At first, the selected general concepts for metal production of copper and uranium from their ores are presented. Then after, the leaching-solvent extraction-electro winning process for copper is shown. Finally, the extraction of uranium from wet phosphoric acid is discussed.",
publisher = "Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical & Materials Engineering",
title = "Solvent extraction and entrainment problem",
pages = "175-163",
number = "2",
volume = "26",
doi = "10.30544/480"
}

Spasić, A., Manojlović, V.,& Jovanović, M.. (2020). Solvent extraction and entrainment problem. in Metallurgical & Materials Engineering
Association of Metallurgical Engineers of Serbia., 26(2), 163-175.
https://doi.org/10.30544/480

Spasić A, Manojlović V, Jovanović M. Solvent extraction and entrainment problem. in Metallurgical & Materials Engineering. 2020;26(2):163-175.
doi:10.30544/480 .

Spasić, Aleksandar, Manojlović, Vaso, Jovanović, Mica, "Solvent extraction and entrainment problem" in Metallurgical & Materials Engineering, 26, no. 2 (2020):163-175,
https://doi.org/10.30544/480 . .

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  - Janjušević, Zoran
AU  - Matković, Vladislav
AU  - Bugarčić, Mladen
AU  - Sokić, Miroslav
AU  - Marković, Branislav
AU  - Manojlović, Vaso
AU  - Patarić, Aleksandra
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5969
AB  - The present work reports the commercialization of a recycling process of spent acid from filament
tungsten wire plant to recover molybdenum (VI)-oxide and further utilizing this product for alloying
cast iron. First part of the process consists of ammonia gas neutralization of spent acid containing
molybdenum, crystallization and filtration of ammonium molybdate, drying and roasting to produce
a commercial grade molybdic-trioxide powder (molybdenum mass fraction 59.2 mas%). Second
part of the process consists of grey cast alloying with MoO3 in inducing furnace. Final product was
hardened iron alloy with high yield of molybdenum recovery (up to 86 %).
PB  - Engineers Society of Corrosion, Belgrade
T2  - Zaštita materijala
T1  - Molybdenum recovery as alloying agent from waste molybdenum solution
EP  - 109
IS  - 1
SP  - 100
VL  - 59
DO  - 10.5937/ZasMat1801102J
ER  - 

@article{
author = "Janjušević, Zoran and Matković, Vladislav and Bugarčić, Mladen and Sokić, Miroslav and Marković, Branislav and Manojlović, Vaso and Patarić, Aleksandra",
year = "2018",
abstract = "The present work reports the commercialization of a recycling process of spent acid from filament
tungsten wire plant to recover molybdenum (VI)-oxide and further utilizing this product for alloying
cast iron. First part of the process consists of ammonia gas neutralization of spent acid containing
molybdenum, crystallization and filtration of ammonium molybdate, drying and roasting to produce
a commercial grade molybdic-trioxide powder (molybdenum mass fraction 59.2 mas%). Second
part of the process consists of grey cast alloying with MoO3 in inducing furnace. Final product was
hardened iron alloy with high yield of molybdenum recovery (up to 86 %).",
publisher = "Engineers Society of Corrosion, Belgrade",
journal = "Zaštita materijala",
title = "Molybdenum recovery as alloying agent from waste molybdenum solution",
pages = "109-100",
number = "1",
volume = "59",
doi = "10.5937/ZasMat1801102J"
}

Janjušević, Z., Matković, V., Bugarčić, M., Sokić, M., Marković, B., Manojlović, V.,& Patarić, A.. (2018). Molybdenum recovery as alloying agent from waste molybdenum solution. in Zaštita materijala
Engineers Society of Corrosion, Belgrade., 59(1), 100-109.
https://doi.org/10.5937/ZasMat1801102J

Janjušević Z, Matković V, Bugarčić M, Sokić M, Marković B, Manojlović V, Patarić A. Molybdenum recovery as alloying agent from waste molybdenum solution. in Zaštita materijala. 2018;59(1):100-109.
doi:10.5937/ZasMat1801102J .

Janjušević, Zoran, Matković, Vladislav, Bugarčić, Mladen, Sokić, Miroslav, Marković, Branislav, Manojlović, Vaso, Patarić, Aleksandra, "Molybdenum recovery as alloying agent from waste molybdenum solution" in Zaštita materijala, 59, no. 1 (2018):100-109,
https://doi.org/10.5937/ZasMat1801102J . .

TY  - THES
AU  - Manojlović, Vaso
PY  - 2017
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=5005
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:15668/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48977167
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4656
AB  - In the most cases metallurgical processes are very complex, therefore formation of by-products and hazardous waste are inevitable. Simulating the reactions in a complex system can lead to self-sustaining and energy efficient treatment of wastes in recycling promoting manner. The synergic combination of oxide systems and metallic reducing agents originating from waste was researched, aiming to use exothermal energy of reactions and to obtain environmentally favorable products. Exergy analysis was used to optimize the use of different reducing agents in the electric-arc furnace, achieving minimal exergy losses. Based on the experimental results, mathematical model and software was developed to calculate material and energy balance, reducing agent amaunt, slag viscosity and density, adiabatic temperature and exergy balance. Electric arc furnace dust, non-standard jarosite PbAg, steel dust from tool steel industry, aluminum and magnesium from secondary sources was used in experimental part of dissertation. The secondary aluminum in the form of foil was prepared in different ways in order to develop and relieve the aluminum surface on the obtained powder particles. Brief characterization of this powders has shown that it is suitable for aluminothermic reactions. The magnesium was taken from secondary magnesium production industry in the form of the powder. Combining magnesium with aluminum powder has a positive influence on the metallothermic reduction reactions. Results are shown that the secondary aluminum and magnesium can be successfully used for a treatment of oxides bearing hazardous wastes and non-hazardous by-products in energy efficient and environmentally friendly manner.
AB  - U većini slučajeva metalurški procesi su veoma kompleksni, tako da je formiranje međuproizvoda i opasnog otpada neizbežno. Kombinovanjem metalurških otpada i međuprodukata koje čine oksidni sistemi i metalni reducenati moguće je uspostaviti sinergiju koja se ogleda u iskorišćenju egzotermne energije reakcija i dobijanja korisnih proizvoda sa stanovišta životne sredine. Eksergijska analiza je korišćena za optimizovanu upotrebu različitih reducenata u elektrolučnoj peći, tako da se postignu minimalni gubici eksergije. Na osnovu eksperimentalnih rezultata razvijen je matematički model i softver za izračunavanje materijalnog i energetskog bilansa, količine redukcionog sredstva, viskoznosti i baziciteta šljake, adijabatske temperature i eksergijskog bilansa. U eksperimentalnom delu disertacije korišćeni materijali su: prašina iz postupka elektrolučnog topljenja čelika, kovarina, nestandardni talog jarosit PbAg, čelična prašina nastala obradom alatnog čelika, aluminijum kao amblažni otpad i opiljci magnezijuma. Sekundarni aluminijum u obliku folije je pripremljen na takav način da se oslobodi i razvije površina aluminijuma na dobijenim česticama praha. Detaljna karakterizacija dobijenih prahova je pokazala da se mogu koristiti za aluminotermijske reakcije. Magnezijum je dobijen iz fabrike za dobijanje magnezijuma iz sekundarnih sirovina. Pokazano je da mešanjem magnezijuma sa aluminijumom ima pozitivan uticaj na tok metalotermijskih reakcija. Rezultati su pokazali da se sekundarni aluminijum i magnezijum mogu uspešno koristiti za tretman opasnog otpada ili metalurških međuprizvoda na energetski efikasan način, koji je povoljan za životnu sredinu.
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Metallothermic reduction in recycling technologies applied to the metallurgical byproducts and wastes
T1  - Metalotermijska redukcija u reciklažnim tehnologijama primenjena na metalurške međuproizvode i otpade
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4656
ER  - 

@phdthesis{
author = "Manojlović, Vaso",
year = "2017",
abstract = "In the most cases metallurgical processes are very complex, therefore formation of by-products and hazardous waste are inevitable. Simulating the reactions in a complex system can lead to self-sustaining and energy efficient treatment of wastes in recycling promoting manner. The synergic combination of oxide systems and metallic reducing agents originating from waste was researched, aiming to use exothermal energy of reactions and to obtain environmentally favorable products. Exergy analysis was used to optimize the use of different reducing agents in the electric-arc furnace, achieving minimal exergy losses. Based on the experimental results, mathematical model and software was developed to calculate material and energy balance, reducing agent amaunt, slag viscosity and density, adiabatic temperature and exergy balance. Electric arc furnace dust, non-standard jarosite PbAg, steel dust from tool steel industry, aluminum and magnesium from secondary sources was used in experimental part of dissertation. The secondary aluminum in the form of foil was prepared in different ways in order to develop and relieve the aluminum surface on the obtained powder particles. Brief characterization of this powders has shown that it is suitable for aluminothermic reactions. The magnesium was taken from secondary magnesium production industry in the form of the powder. Combining magnesium with aluminum powder has a positive influence on the metallothermic reduction reactions. Results are shown that the secondary aluminum and magnesium can be successfully used for a treatment of oxides bearing hazardous wastes and non-hazardous by-products in energy efficient and environmentally friendly manner., U većini slučajeva metalurški procesi su veoma kompleksni, tako da je formiranje međuproizvoda i opasnog otpada neizbežno. Kombinovanjem metalurških otpada i međuprodukata koje čine oksidni sistemi i metalni reducenati moguće je uspostaviti sinergiju koja se ogleda u iskorišćenju egzotermne energije reakcija i dobijanja korisnih proizvoda sa stanovišta životne sredine. Eksergijska analiza je korišćena za optimizovanu upotrebu različitih reducenata u elektrolučnoj peći, tako da se postignu minimalni gubici eksergije. Na osnovu eksperimentalnih rezultata razvijen je matematički model i softver za izračunavanje materijalnog i energetskog bilansa, količine redukcionog sredstva, viskoznosti i baziciteta šljake, adijabatske temperature i eksergijskog bilansa. U eksperimentalnom delu disertacije korišćeni materijali su: prašina iz postupka elektrolučnog topljenja čelika, kovarina, nestandardni talog jarosit PbAg, čelična prašina nastala obradom alatnog čelika, aluminijum kao amblažni otpad i opiljci magnezijuma. Sekundarni aluminijum u obliku folije je pripremljen na takav način da se oslobodi i razvije površina aluminijuma na dobijenim česticama praha. Detaljna karakterizacija dobijenih prahova je pokazala da se mogu koristiti za aluminotermijske reakcije. Magnezijum je dobijen iz fabrike za dobijanje magnezijuma iz sekundarnih sirovina. Pokazano je da mešanjem magnezijuma sa aluminijumom ima pozitivan uticaj na tok metalotermijskih reakcija. Rezultati su pokazali da se sekundarni aluminijum i magnezijum mogu uspešno koristiti za tretman opasnog otpada ili metalurških međuprizvoda na energetski efikasan način, koji je povoljan za životnu sredinu.",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Metallothermic reduction in recycling technologies applied to the metallurgical byproducts and wastes, Metalotermijska redukcija u reciklažnim tehnologijama primenjena na metalurške međuproizvode i otpade",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4656"
}

Manojlović, V.. (2017). Metallothermic reduction in recycling technologies applied to the metallurgical byproducts and wastes. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_4656

Manojlović V. Metallothermic reduction in recycling technologies applied to the metallurgical byproducts and wastes. 2017;.
https://hdl.handle.net/21.15107/rcub_technorep_4656 .

Manojlović, Vaso, "Metallothermic reduction in recycling technologies applied to the metallurgical byproducts and wastes" (2017),
https://hdl.handle.net/21.15107/rcub_technorep_4656 .

TY  - JOUR
AU  - Manojlović, Vaso
AU  - Kamberović, Željko
AU  - Gavrilovski, Milorad
AU  - Sokić, Miroslav
AU  - Korać, Marija
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3699
AB  - Simulating the reactions in a complex system can lead to self-sustaining and energy efficient treatment of wastes in recycling promoting manner. In this contribution, the synergic combination of electric arc furnace dust (EAFD), mill scale, and secondary aluminum, in a form of waste foil, was researched aiming to use exothermal energy of reactions and to obtain environmentally favorable products. The secondary aluminum in the form of foil was prepared in different ways in order to develop aluminum surface and to be suitable for aluminothermic reactions. The commercial aluminum powder was used to determine optimal conditions using full factorial experiment design. After that, research was performed on aluminothermic reactions with the aluminum powder obtained from secondary aluminum foils. Results show that the secondary aluminum can be successfully used for a treatment of oxides bearing hazardous wastes in an energy efficient and environmentally friendly manner. The comparative life-cycle assessment revealed several advantages of using the secondary aluminum foil as a reduction agent compared to the conventional recycling of the secondary aluminum foil.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Combustion Science and Technology
T1  - Combustion of Metallurgical Wastes Using Secondary Aluminum Foils
EP  - 1089
IS  - 6
SP  - 1072
VL  - 189
DO  - 10.1080/00102202.2016.1274310
ER  - 

@article{
author = "Manojlović, Vaso and Kamberović, Željko and Gavrilovski, Milorad and Sokić, Miroslav and Korać, Marija",
year = "2017",
abstract = "Simulating the reactions in a complex system can lead to self-sustaining and energy efficient treatment of wastes in recycling promoting manner. In this contribution, the synergic combination of electric arc furnace dust (EAFD), mill scale, and secondary aluminum, in a form of waste foil, was researched aiming to use exothermal energy of reactions and to obtain environmentally favorable products. The secondary aluminum in the form of foil was prepared in different ways in order to develop aluminum surface and to be suitable for aluminothermic reactions. The commercial aluminum powder was used to determine optimal conditions using full factorial experiment design. After that, research was performed on aluminothermic reactions with the aluminum powder obtained from secondary aluminum foils. Results show that the secondary aluminum can be successfully used for a treatment of oxides bearing hazardous wastes in an energy efficient and environmentally friendly manner. The comparative life-cycle assessment revealed several advantages of using the secondary aluminum foil as a reduction agent compared to the conventional recycling of the secondary aluminum foil.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Combustion Science and Technology",
title = "Combustion of Metallurgical Wastes Using Secondary Aluminum Foils",
pages = "1089-1072",
number = "6",
volume = "189",
doi = "10.1080/00102202.2016.1274310"
}

Manojlović, V., Kamberović, Ž., Gavrilovski, M., Sokić, M.,& Korać, M.. (2017). Combustion of Metallurgical Wastes Using Secondary Aluminum Foils. in Combustion Science and Technology
Taylor & Francis Inc, Philadelphia., 189(6), 1072-1089.
https://doi.org/10.1080/00102202.2016.1274310

Manojlović V, Kamberović Ž, Gavrilovski M, Sokić M, Korać M. Combustion of Metallurgical Wastes Using Secondary Aluminum Foils. in Combustion Science and Technology. 2017;189(6):1072-1089.
doi:10.1080/00102202.2016.1274310 .

Manojlović, Vaso, Kamberović, Željko, Gavrilovski, Milorad, Sokić, Miroslav, Korać, Marija, "Combustion of Metallurgical Wastes Using Secondary Aluminum Foils" in Combustion Science and Technology, 189, no. 6 (2017):1072-1089,
https://doi.org/10.1080/00102202.2016.1274310 . .

TY  - JOUR
AU  - Marković, Branislav
AU  - Sokić, Miroslav
AU  - Ilić, Ilija
AU  - Manojlović, Vaso
AU  - Gulišija, Zvonko
AU  - Živković, Dragana
AU  - Štrbac, Nada
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3528
AB  - Modern industrial product design implies presence of many different materials. Consequently, in the recycling process, shredding and separation procedures are applied. However, all materials cannot be completely separated; therefore, there is a contamination in the recycling streams. The quality of the materials streams can be reduced in each of the following recycling steps. These qualitative losses cannot be described by material balance. This paper presents the concept of exergy as a measure of quality losses, and gives the methods for the calculation of the exergy content and the exergy loss. Losses attributed to the recycling or material losses, material contamination losses and dilution requirements can be used as indicators for the materials quality loss as well as for the resource efficiency in the production systems. In this paper, the example of calculations on the steel scrap is presented.
AB  - Dizajn modernih industrijskih proizvoda je takav da oni predstavljaju kompleksne spojeve različitih materijala. Zbog toga se u postupku reciklaže materijala primenjuju procesi usitnjavanja i razdvajanja. Međutim materijali se ne mogu u potpunosti razdvojiti i zbog toga dolazi do kontaminacija u reciklažnim tokovima. Zbog toga se kvalitet materijala može smanjivati u svakom narednom reciklažnom koraku. Ovakvi kvalitativni gubici ne mogu se opisati masenim bilansom, i u radu je prikazan eksergijski koncept kao merilo gubitaka kvaliteta, odnosno dat je metod za izračunavanje eksergijskog sadržaja i eksergijskog gubitka. Gubici pripisani reciklaži ili tačnije materijalni gubici, gubici usled kontaminacije drugim metalima i posledično potreba za razblaživanjem, mogu se koristiti kao indikatori gubitka kvaliteta materijala i efikasnosti korišćenja resursa u proizvodnim sistemima. U radu je dat primer proračuna na čeličnom otpadu.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Exergy concept and its implementation in the recycling of metals
T1  - Eksergijski koncept i njegova primena u recikliranju metala
EP  - 103
IS  - 1
SP  - 100
VL  - 58
DO  - 10.5937/ZasMat1701100M
ER  - 

@article{
author = "Marković, Branislav and Sokić, Miroslav and Ilić, Ilija and Manojlović, Vaso and Gulišija, Zvonko and Živković, Dragana and Štrbac, Nada",
year = "2017",
abstract = "Modern industrial product design implies presence of many different materials. Consequently, in the recycling process, shredding and separation procedures are applied. However, all materials cannot be completely separated; therefore, there is a contamination in the recycling streams. The quality of the materials streams can be reduced in each of the following recycling steps. These qualitative losses cannot be described by material balance. This paper presents the concept of exergy as a measure of quality losses, and gives the methods for the calculation of the exergy content and the exergy loss. Losses attributed to the recycling or material losses, material contamination losses and dilution requirements can be used as indicators for the materials quality loss as well as for the resource efficiency in the production systems. In this paper, the example of calculations on the steel scrap is presented., Dizajn modernih industrijskih proizvoda je takav da oni predstavljaju kompleksne spojeve različitih materijala. Zbog toga se u postupku reciklaže materijala primenjuju procesi usitnjavanja i razdvajanja. Međutim materijali se ne mogu u potpunosti razdvojiti i zbog toga dolazi do kontaminacija u reciklažnim tokovima. Zbog toga se kvalitet materijala može smanjivati u svakom narednom reciklažnom koraku. Ovakvi kvalitativni gubici ne mogu se opisati masenim bilansom, i u radu je prikazan eksergijski koncept kao merilo gubitaka kvaliteta, odnosno dat je metod za izračunavanje eksergijskog sadržaja i eksergijskog gubitka. Gubici pripisani reciklaži ili tačnije materijalni gubici, gubici usled kontaminacije drugim metalima i posledično potreba za razblaživanjem, mogu se koristiti kao indikatori gubitka kvaliteta materijala i efikasnosti korišćenja resursa u proizvodnim sistemima. U radu je dat primer proračuna na čeličnom otpadu.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Exergy concept and its implementation in the recycling of metals, Eksergijski koncept i njegova primena u recikliranju metala",
pages = "103-100",
number = "1",
volume = "58",
doi = "10.5937/ZasMat1701100M"
}

Marković, B., Sokić, M., Ilić, I., Manojlović, V., Gulišija, Z., Živković, D.,& Štrbac, N.. (2017). Exergy concept and its implementation in the recycling of metals. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 58(1), 100-103.
https://doi.org/10.5937/ZasMat1701100M

Marković B, Sokić M, Ilić I, Manojlović V, Gulišija Z, Živković D, Štrbac N. Exergy concept and its implementation in the recycling of metals. in Zaštita materijala. 2017;58(1):100-103.
doi:10.5937/ZasMat1701100M .

Marković, Branislav, Sokić, Miroslav, Ilić, Ilija, Manojlović, Vaso, Gulišija, Zvonko, Živković, Dragana, Štrbac, Nada, "Exergy concept and its implementation in the recycling of metals" in Zaštita materijala, 58, no. 1 (2017):100-103,
https://doi.org/10.5937/ZasMat1701100M . .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Stojanović, Jovica
AU  - Marković, Branislav
AU  - Bugarčić, Mladen
AU  - Štrbac, Nada
AU  - Kamberović, Željko
AU  - Manojlović, Vaso
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3654
AB  - In this paper, the influence of structural and textural characteristics of sulfide minerals on their leaching from a polymetallic concentrate by sulfuric acid and sodium nitrate solution is presented. The starting material was Pb-Zn-Cu sulphide polymetallic concentrate enriched during the flotation of a polymetallic ore in the "Rudnik" flotation plant (Rudnik - Serbia). Leaching experiments were carried out in a closed glass reactor, which provides stable hermetic conditions and allows heating at constant temperature. Chemical, XRD, qualitative and quantitative microscopic and SEM/EDX analyses were used to characterizes samples of the polymetallic concentrate and leach residue. It was determined that chalcopyrite, sphalerite, galena, pyrrhotite and quartz were present in the polymetallic concentrate. The content of sulphide minerals was 69.5%, of which 60.9% occurred as liberated grains: 88.3% of chalcopyrite, 59.3% of sphalerite, 25.1% of galena and 51.6% of pirrhotite. The rest of chalcopyrite, sphalerite, galena and pirrhotite grains were in the forms of inclusions, impregnations, and simple and complex intergrowths. During the leaching process by sodium nitrate and sulphuric acid solution, it was shown previously that the leaching rate of sulphide minerals decreased with time while a part of the sulphide minerals remained in the leach residue. After leaching at 80 degrees C for 120 min, the yields were 69.8, 82.7 and 67.1% for Cu, Zn and Fe, respectively. Lead, in the form of insoluble anglesite, remained in the leach residue. In addition to the anglesite, unleached sulfide minerals and quartz, elemental sulfur was found in the solid residue. The content of sulphide minerals was 35% of which 33.7% minerals occur independently. In specific, 54.7% of chalcopyrite, 31.9% of sphalerite, 8.2% of galena and 37.6% of pyrrhotite appear as separate grains with highly corroded surfaces. Therefore, the structural assembly of sulphide grains in the polymetallic concentrate is favourable and it is not the reason for the observed decrease in the leaching rate in the final process stages. The obtained findings may be explained by the presence of elemental sulphur that is formed during the reaction and precipitated at the grain surfaces, thus creating a diffusion barrier for the leach solution.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Effects of structural and textural grain characteristics on leaching of sulphide minerals from a polymetallic concentrate by sodium nitrate and sulphuric acid solution
EP  - 469
IS  - 6
SP  - 461
VL  - 71
DO  - 10.2298/HEMIND161130006S
ER  - 

@article{
author = "Sokić, Miroslav and Stojanović, Jovica and Marković, Branislav and Bugarčić, Mladen and Štrbac, Nada and Kamberović, Željko and Manojlović, Vaso",
year = "2017",
abstract = "In this paper, the influence of structural and textural characteristics of sulfide minerals on their leaching from a polymetallic concentrate by sulfuric acid and sodium nitrate solution is presented. The starting material was Pb-Zn-Cu sulphide polymetallic concentrate enriched during the flotation of a polymetallic ore in the "Rudnik" flotation plant (Rudnik - Serbia). Leaching experiments were carried out in a closed glass reactor, which provides stable hermetic conditions and allows heating at constant temperature. Chemical, XRD, qualitative and quantitative microscopic and SEM/EDX analyses were used to characterizes samples of the polymetallic concentrate and leach residue. It was determined that chalcopyrite, sphalerite, galena, pyrrhotite and quartz were present in the polymetallic concentrate. The content of sulphide minerals was 69.5%, of which 60.9% occurred as liberated grains: 88.3% of chalcopyrite, 59.3% of sphalerite, 25.1% of galena and 51.6% of pirrhotite. The rest of chalcopyrite, sphalerite, galena and pirrhotite grains were in the forms of inclusions, impregnations, and simple and complex intergrowths. During the leaching process by sodium nitrate and sulphuric acid solution, it was shown previously that the leaching rate of sulphide minerals decreased with time while a part of the sulphide minerals remained in the leach residue. After leaching at 80 degrees C for 120 min, the yields were 69.8, 82.7 and 67.1% for Cu, Zn and Fe, respectively. Lead, in the form of insoluble anglesite, remained in the leach residue. In addition to the anglesite, unleached sulfide minerals and quartz, elemental sulfur was found in the solid residue. The content of sulphide minerals was 35% of which 33.7% minerals occur independently. In specific, 54.7% of chalcopyrite, 31.9% of sphalerite, 8.2% of galena and 37.6% of pyrrhotite appear as separate grains with highly corroded surfaces. Therefore, the structural assembly of sulphide grains in the polymetallic concentrate is favourable and it is not the reason for the observed decrease in the leaching rate in the final process stages. The obtained findings may be explained by the presence of elemental sulphur that is formed during the reaction and precipitated at the grain surfaces, thus creating a diffusion barrier for the leach solution.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Effects of structural and textural grain characteristics on leaching of sulphide minerals from a polymetallic concentrate by sodium nitrate and sulphuric acid solution",
pages = "469-461",
number = "6",
volume = "71",
doi = "10.2298/HEMIND161130006S"
}

Sokić, M., Stojanović, J., Marković, B., Bugarčić, M., Štrbac, N., Kamberović, Ž.,& Manojlović, V.. (2017). Effects of structural and textural grain characteristics on leaching of sulphide minerals from a polymetallic concentrate by sodium nitrate and sulphuric acid solution. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 71(6), 461-469.
https://doi.org/10.2298/HEMIND161130006S

Sokić M, Stojanović J, Marković B, Bugarčić M, Štrbac N, Kamberović Ž, Manojlović V. Effects of structural and textural grain characteristics on leaching of sulphide minerals from a polymetallic concentrate by sodium nitrate and sulphuric acid solution. in Hemijska industrija. 2017;71(6):461-469.
doi:10.2298/HEMIND161130006S .

Sokić, Miroslav, Stojanović, Jovica, Marković, Branislav, Bugarčić, Mladen, Štrbac, Nada, Kamberović, Željko, Manojlović, Vaso, "Effects of structural and textural grain characteristics on leaching of sulphide minerals from a polymetallic concentrate by sodium nitrate and sulphuric acid solution" in Hemijska industrija, 71, no. 6 (2017):461-469,
https://doi.org/10.2298/HEMIND161130006S . .

TY  - JOUR
AU  - Manojlović, Vaso
AU  - Kamberović, Željko
AU  - Sokić, Miroslav
AU  - Gavrilovski, Milorad
AU  - Korać, Marija
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3270
AB  - Electric arc furnace (EAF) dust, together with a mill scale and coke were smelted in a laboratory electric arc furnace. These metallurgical wastes consist of a many different phases and elements, making the reaction process complex. Thermo-chemical analysis of the reactions in metal, slag, and gas phases was done, and used for modeling of the mixture composition and energy consumption required for smelting. Modelling was performed with the software named RikiAlC. The crude ZnO, slag, and metal phase were analyzed using the atomic absorption spectrometry (AAS), the optical emission spectrometry with inductively coupled plasma (ICP-OES), the X-ray diffraction (XRD), the scanning electron microscopy (SEM) equipped with energy dispersive spectrometry (EDS), and reflected and transmitted light microscopy. Also, in order to follow the behavior of this process the exhausted gases were monitored. The synergetic effects of the designed mixture may be recognized in minimizing energy consumption for the smelting process, improving the product yield efficiency, and reducing the negative environmental effects.
PB  - MDPI, Basel
T2  - Metals
T1  - Designing of Synergistic Waste Mixtures for Multiphase Reactive Smelting
IS  - 6
VL  - 6
DO  - 10.3390/met6060138
ER  - 

@article{
author = "Manojlović, Vaso and Kamberović, Željko and Sokić, Miroslav and Gavrilovski, Milorad and Korać, Marija",
year = "2016",
abstract = "Electric arc furnace (EAF) dust, together with a mill scale and coke were smelted in a laboratory electric arc furnace. These metallurgical wastes consist of a many different phases and elements, making the reaction process complex. Thermo-chemical analysis of the reactions in metal, slag, and gas phases was done, and used for modeling of the mixture composition and energy consumption required for smelting. Modelling was performed with the software named RikiAlC. The crude ZnO, slag, and metal phase were analyzed using the atomic absorption spectrometry (AAS), the optical emission spectrometry with inductively coupled plasma (ICP-OES), the X-ray diffraction (XRD), the scanning electron microscopy (SEM) equipped with energy dispersive spectrometry (EDS), and reflected and transmitted light microscopy. Also, in order to follow the behavior of this process the exhausted gases were monitored. The synergetic effects of the designed mixture may be recognized in minimizing energy consumption for the smelting process, improving the product yield efficiency, and reducing the negative environmental effects.",
publisher = "MDPI, Basel",
journal = "Metals",
title = "Designing of Synergistic Waste Mixtures for Multiphase Reactive Smelting",
number = "6",
volume = "6",
doi = "10.3390/met6060138"
}

Manojlović, V., Kamberović, Ž., Sokić, M., Gavrilovski, M.,& Korać, M.. (2016). Designing of Synergistic Waste Mixtures for Multiphase Reactive Smelting. in Metals
MDPI, Basel., 6(6).
https://doi.org/10.3390/met6060138

Manojlović V, Kamberović Ž, Sokić M, Gavrilovski M, Korać M. Designing of Synergistic Waste Mixtures for Multiphase Reactive Smelting. in Metals. 2016;6(6).
doi:10.3390/met6060138 .

Manojlović, Vaso, Kamberović, Željko, Sokić, Miroslav, Gavrilovski, Milorad, Korać, Marija, "Designing of Synergistic Waste Mixtures for Multiphase Reactive Smelting" in Metals, 6, no. 6 (2016),
https://doi.org/10.3390/met6060138 . .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Matković, Vladislav
AU  - Marković, Branislav
AU  - Manojlović, Vaso
AU  - Štrbac, Nada
AU  - Živković, Dragana
AU  - Kamberović, Željko
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3206
AB  - The results of research on the leaching process of complex sulphide-barite ore were presented in this paper. The leaching process was carried out in a laboratory autoclave by ferric chloride solution. Considering that those minerals are represented in complex structural-textural relationships, it is not possible to extract lead, zinc and copper minerals from ore by flotation methods. The obtained results confirmed possibility of the ore processing directly, by chemical methods. The effect of temperature, time and oxygen partial pressure on the lead, zinc and copper dissolution was studied. The maximal leaching degree was achieved at 100 °C and amount of 91.5 % for Pb, 96.1 % for Zn and 60.7 % for Cu). Leaching at temperatures above 100 °C is impractical.
PB  - Association of Metallurgical Engineers of Serbia
T2  - Metallurgical & Materials Engineering
T1  - Complex sulphide-barite ore leaching in ferric chloride solution
EP  - 89
IS  - 2
SP  - 81
VL  - 22
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3206
ER  - 

@article{
author = "Sokić, Miroslav and Matković, Vladislav and Marković, Branislav and Manojlović, Vaso and Štrbac, Nada and Živković, Dragana and Kamberović, Željko",
year = "2016",
abstract = "The results of research on the leaching process of complex sulphide-barite ore were presented in this paper. The leaching process was carried out in a laboratory autoclave by ferric chloride solution. Considering that those minerals are represented in complex structural-textural relationships, it is not possible to extract lead, zinc and copper minerals from ore by flotation methods. The obtained results confirmed possibility of the ore processing directly, by chemical methods. The effect of temperature, time and oxygen partial pressure on the lead, zinc and copper dissolution was studied. The maximal leaching degree was achieved at 100 °C and amount of 91.5 % for Pb, 96.1 % for Zn and 60.7 % for Cu). Leaching at temperatures above 100 °C is impractical.",
publisher = "Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical & Materials Engineering",
title = "Complex sulphide-barite ore leaching in ferric chloride solution",
pages = "89-81",
number = "2",
volume = "22",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3206"
}

Sokić, M., Matković, V., Marković, B., Manojlović, V., Štrbac, N., Živković, D.,& Kamberović, Ž.. (2016). Complex sulphide-barite ore leaching in ferric chloride solution. in Metallurgical & Materials Engineering
Association of Metallurgical Engineers of Serbia., 22(2), 81-89.
https://hdl.handle.net/21.15107/rcub_technorep_3206

Sokić M, Matković V, Marković B, Manojlović V, Štrbac N, Živković D, Kamberović Ž. Complex sulphide-barite ore leaching in ferric chloride solution. in Metallurgical & Materials Engineering. 2016;22(2):81-89.
https://hdl.handle.net/21.15107/rcub_technorep_3206 .

Sokić, Miroslav, Matković, Vladislav, Marković, Branislav, Manojlović, Vaso, Štrbac, Nada, Živković, Dragana, Kamberović, Željko, "Complex sulphide-barite ore leaching in ferric chloride solution" in Metallurgical & Materials Engineering, 22, no. 2 (2016):81-89,
https://hdl.handle.net/21.15107/rcub_technorep_3206 .

TY  - JOUR
AU  - Spasić, Aleksandar
AU  - Jovanović, Jovan M.
AU  - Manojlović, Vaso
AU  - Jovanović, Mica
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3222
AB  - This research focuses on the modeling of the liquid-liquid dispersed system, including particular insight on the electrocoalescence (EC) process that occurs during the breaking of double emulsions. The representative system, used in this work, was taken from the pilot plant for solvent extraction of uranium from wet phosphoric acid. The chosen framework required for elucidation of the EC process is based on the electrohydrodynamic (EHD) principles. During the model development it was necessary to consider several theoretical concepts for easier understanding and description of the related events. The first is the concept of entities, and corresponding classification of finely dispersed systems. The second concept is an introduction of almost forgotten basic electrodynamics element the memdiode or memristor as a current controlled device, and corresponding memristive systems. Hence, the conclusions that may be withdrawn from the presented results and findings could enable easier designing of the solutions for a breaking of double emulsions problems, that is, the entrainment problems that may arise in some pilot or industrial plants. Finally, the perspectives and the remaining challenges, considering the here discussed concepts and model based on the EHD principles, are mentioned.
PB  - Academic Press Inc Elsevier Science, San Diego
T2  - Journal of Colloid and Interface Science
T1  - Breaking of double emulsions based on electrohydrodynamics principles
EP  - 172
SP  - 165
VL  - 479
DO  - 10.1016/j.jcis.2016.06.061
ER  - 

@article{
author = "Spasić, Aleksandar and Jovanović, Jovan M. and Manojlović, Vaso and Jovanović, Mica",
year = "2016",
abstract = "This research focuses on the modeling of the liquid-liquid dispersed system, including particular insight on the electrocoalescence (EC) process that occurs during the breaking of double emulsions. The representative system, used in this work, was taken from the pilot plant for solvent extraction of uranium from wet phosphoric acid. The chosen framework required for elucidation of the EC process is based on the electrohydrodynamic (EHD) principles. During the model development it was necessary to consider several theoretical concepts for easier understanding and description of the related events. The first is the concept of entities, and corresponding classification of finely dispersed systems. The second concept is an introduction of almost forgotten basic electrodynamics element the memdiode or memristor as a current controlled device, and corresponding memristive systems. Hence, the conclusions that may be withdrawn from the presented results and findings could enable easier designing of the solutions for a breaking of double emulsions problems, that is, the entrainment problems that may arise in some pilot or industrial plants. Finally, the perspectives and the remaining challenges, considering the here discussed concepts and model based on the EHD principles, are mentioned.",
publisher = "Academic Press Inc Elsevier Science, San Diego",
journal = "Journal of Colloid and Interface Science",
title = "Breaking of double emulsions based on electrohydrodynamics principles",
pages = "172-165",
volume = "479",
doi = "10.1016/j.jcis.2016.06.061"
}

Spasić, A., Jovanović, J. M., Manojlović, V.,& Jovanović, M.. (2016). Breaking of double emulsions based on electrohydrodynamics principles. in Journal of Colloid and Interface Science
Academic Press Inc Elsevier Science, San Diego., 479, 165-172.
https://doi.org/10.1016/j.jcis.2016.06.061

Spasić A, Jovanović JM, Manojlović V, Jovanović M. Breaking of double emulsions based on electrohydrodynamics principles. in Journal of Colloid and Interface Science. 2016;479:165-172.
doi:10.1016/j.jcis.2016.06.061 .

Spasić, Aleksandar, Jovanović, Jovan M., Manojlović, Vaso, Jovanović, Mica, "Breaking of double emulsions based on electrohydrodynamics principles" in Journal of Colloid and Interface Science, 479 (2016):165-172,
https://doi.org/10.1016/j.jcis.2016.06.061 . .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Matković, Vladislav
AU  - Stojanović, Jovica
AU  - Marković, Branislav
AU  - Manojlović, Vaso
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3310
AB  - Refractory sulphide-barite ore was reduced with carbon in order to release lead, zinc, and copper sulphide from barite-pyrite base. Mineralogical investigations showed that due to the complex structural-textural relationships of lead, copper and zinc minerals with gangue minerals, it is not possible to enrich the ore using the conventional methods of mineral processing. The influence of temperature and time was studied to optimize the conditions, and to determine the kinetics of the barite reduction. The maximum removal of barite from ore was 96.7% at 900oC after 180 min. Chemically controlled kinetic model showed the best compliance with the experimental data. An activation energy of 142 kJ/mol was found.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Kinetics of barite reduction from refractory barite-sulphide ore
EP  - 268
IS  - 4
SP  - 261
VL  - 22
DO  - 10.30544/237
ER  - 

@article{
author = "Sokić, Miroslav and Matković, Vladislav and Stojanović, Jovica and Marković, Branislav and Manojlović, Vaso",
year = "2016",
abstract = "Refractory sulphide-barite ore was reduced with carbon in order to release lead, zinc, and copper sulphide from barite-pyrite base. Mineralogical investigations showed that due to the complex structural-textural relationships of lead, copper and zinc minerals with gangue minerals, it is not possible to enrich the ore using the conventional methods of mineral processing. The influence of temperature and time was studied to optimize the conditions, and to determine the kinetics of the barite reduction. The maximum removal of barite from ore was 96.7% at 900oC after 180 min. Chemically controlled kinetic model showed the best compliance with the experimental data. An activation energy of 142 kJ/mol was found.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Kinetics of barite reduction from refractory barite-sulphide ore",
pages = "268-261",
number = "4",
volume = "22",
doi = "10.30544/237"
}

Sokić, M., Matković, V., Stojanović, J., Marković, B.,& Manojlović, V.. (2016). Kinetics of barite reduction from refractory barite-sulphide ore. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 22(4), 261-268.
https://doi.org/10.30544/237

Sokić M, Matković V, Stojanović J, Marković B, Manojlović V. Kinetics of barite reduction from refractory barite-sulphide ore. in Metallurgical & Materials Engineering. 2016;22(4):261-268.
doi:10.30544/237 .

Sokić, Miroslav, Matković, Vladislav, Stojanović, Jovica, Marković, Branislav, Manojlović, Vaso, "Kinetics of barite reduction from refractory barite-sulphide ore" in Metallurgical & Materials Engineering, 22, no. 4 (2016):261-268,
https://doi.org/10.30544/237 . .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Ilić, Ilija B.
AU  - Manojlović, Vaso
AU  - Marković, Branislav
AU  - Gulišija, Zvonko
AU  - Pavlović, Milan D.
AU  - Štrbac, Nada
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3331
AB  - The impact of various time-defendant factors on the recycling rate of end-of-life vehicles (ELV) in Republic of Serbia was investigated. Statistical distribution of the frequency of the number of ELV in the year of dismantling depending on the year of production of ELV is designed using the two-parameter Weibull distribution function and MATLAB software, based on a real time data. Obtaining the time-dependence of Weibull parameters, a statistical distribution of frequency of the number of ELV in the coming period in Serbia was simulated. These results in combination with amount of materials in the most abundant cars in Serbia were used to simulate the overall amount of materials, which are available for recycling, in the coming period. These results are essential for automotive recycling industry management, particularly for shredders, dismantlers and metal pre-processors.
PB  - Budapest Tech, Budapest
T2  - Acta Polytechnica Hungarica
T1  - Modeling and Prediction of the end of Life Vehicles Number Distribution in Serbia
EP  - 172
IS  - 4
SP  - 159
VL  - 13
DO  - 10.12700/APH.13.4.2016.4.10
ER  - 

@article{
author = "Sokić, Miroslav and Ilić, Ilija B. and Manojlović, Vaso and Marković, Branislav and Gulišija, Zvonko and Pavlović, Milan D. and Štrbac, Nada",
year = "2016",
abstract = "The impact of various time-defendant factors on the recycling rate of end-of-life vehicles (ELV) in Republic of Serbia was investigated. Statistical distribution of the frequency of the number of ELV in the year of dismantling depending on the year of production of ELV is designed using the two-parameter Weibull distribution function and MATLAB software, based on a real time data. Obtaining the time-dependence of Weibull parameters, a statistical distribution of frequency of the number of ELV in the coming period in Serbia was simulated. These results in combination with amount of materials in the most abundant cars in Serbia were used to simulate the overall amount of materials, which are available for recycling, in the coming period. These results are essential for automotive recycling industry management, particularly for shredders, dismantlers and metal pre-processors.",
publisher = "Budapest Tech, Budapest",
journal = "Acta Polytechnica Hungarica",
title = "Modeling and Prediction of the end of Life Vehicles Number Distribution in Serbia",
pages = "172-159",
number = "4",
volume = "13",
doi = "10.12700/APH.13.4.2016.4.10"
}

Sokić, M., Ilić, I. B., Manojlović, V., Marković, B., Gulišija, Z., Pavlović, M. D.,& Štrbac, N.. (2016). Modeling and Prediction of the end of Life Vehicles Number Distribution in Serbia. in Acta Polytechnica Hungarica
Budapest Tech, Budapest., 13(4), 159-172.
https://doi.org/10.12700/APH.13.4.2016.4.10

Sokić M, Ilić IB, Manojlović V, Marković B, Gulišija Z, Pavlović MD, Štrbac N. Modeling and Prediction of the end of Life Vehicles Number Distribution in Serbia. in Acta Polytechnica Hungarica. 2016;13(4):159-172.
doi:10.12700/APH.13.4.2016.4.10 .

Sokić, Miroslav, Ilić, Ilija B., Manojlović, Vaso, Marković, Branislav, Gulišija, Zvonko, Pavlović, Milan D., Štrbac, Nada, "Modeling and Prediction of the end of Life Vehicles Number Distribution in Serbia" in Acta Polytechnica Hungarica, 13, no. 4 (2016):159-172,
https://doi.org/10.12700/APH.13.4.2016.4.10 . .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Gulišija, Zvonko
AU  - Ilić, Ilija B.
AU  - Marković, Branislav
AU  - Štrbac, Nada
AU  - Živković, Dragana
AU  - Manojlović, Vaso
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2903
AB  - Procedures for copper secondary raw materials processing include two basic stages: pretreatment of the copper waste and its further metallurgical processing. For copper waste pretreatment technology, there are different applied procedures depending on the type of raw material. All operations of pretreatment are influencing the quality of metallurgical processing. For metallurgical processing of raw materials prepared for the purpose of obtaining copper and copper alloys the shaft, flaming and short-drum furnaces, converters and electric furnaces (electric resistant, electric arc and induction furnaces) are used.
AB  - Postupci prerade sekundarnih sirovina bakra uključuju dva osnovna stupnja: pripremu bakarnih otpadaka i njihovu dalju metaluršku preradu. Za pripremu bakarnih otpadaka koriste se različiti postupci u zavisnosti od vrste i kvaliteta sekundarne sirovine. Sve operacije pripreme utiču na kvalitet metalurške prerade, odnosno na kvalitet proizvoda. Za topljenje pripremljenih sekundarnih sirovina u cilju dobijanja legura na bazi bakra koriste se razni agregati: šahtne peći, konvertori, plamene lončaste i koritaste plamene peći, kratke bubnjaste peći i električne peći (elektrolučne, elektrootporne, indukcione).
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Metallurgical processing of copper secondary raw materials
T1  - Metalurška prerada sekundarnih sirovina bakra
EP  - 622
IS  - 4
SP  - 616
VL  - 70
DO  - 10.5937/tehnika1504616S
ER  - 

@article{
author = "Sokić, Miroslav and Gulišija, Zvonko and Ilić, Ilija B. and Marković, Branislav and Štrbac, Nada and Živković, Dragana and Manojlović, Vaso",
year = "2015",
abstract = "Procedures for copper secondary raw materials processing include two basic stages: pretreatment of the copper waste and its further metallurgical processing. For copper waste pretreatment technology, there are different applied procedures depending on the type of raw material. All operations of pretreatment are influencing the quality of metallurgical processing. For metallurgical processing of raw materials prepared for the purpose of obtaining copper and copper alloys the shaft, flaming and short-drum furnaces, converters and electric furnaces (electric resistant, electric arc and induction furnaces) are used., Postupci prerade sekundarnih sirovina bakra uključuju dva osnovna stupnja: pripremu bakarnih otpadaka i njihovu dalju metaluršku preradu. Za pripremu bakarnih otpadaka koriste se različiti postupci u zavisnosti od vrste i kvaliteta sekundarne sirovine. Sve operacije pripreme utiču na kvalitet metalurške prerade, odnosno na kvalitet proizvoda. Za topljenje pripremljenih sekundarnih sirovina u cilju dobijanja legura na bazi bakra koriste se razni agregati: šahtne peći, konvertori, plamene lončaste i koritaste plamene peći, kratke bubnjaste peći i električne peći (elektrolučne, elektrootporne, indukcione).",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Metallurgical processing of copper secondary raw materials, Metalurška prerada sekundarnih sirovina bakra",
pages = "622-616",
number = "4",
volume = "70",
doi = "10.5937/tehnika1504616S"
}

Sokić, M., Gulišija, Z., Ilić, I. B., Marković, B., Štrbac, N., Živković, D.,& Manojlović, V.. (2015). Metallurgical processing of copper secondary raw materials. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 70(4), 616-622.
https://doi.org/10.5937/tehnika1504616S

Sokić M, Gulišija Z, Ilić IB, Marković B, Štrbac N, Živković D, Manojlović V. Metallurgical processing of copper secondary raw materials. in Tehnika. 2015;70(4):616-622.
doi:10.5937/tehnika1504616S .

Sokić, Miroslav, Gulišija, Zvonko, Ilić, Ilija B., Marković, Branislav, Štrbac, Nada, Živković, Dragana, Manojlović, Vaso, "Metallurgical processing of copper secondary raw materials" in Tehnika, 70, no. 4 (2015):616-622,
https://doi.org/10.5937/tehnika1504616S . .

TY  - JOUR
AU  - Marković, Branislav
AU  - Sokić, Miroslav
AU  - Kamberović, Željko
AU  - Živković, Dragana
AU  - Štrbac, Nada
AU  - Manojlović, Vaso
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2914
AB  - Present work is focused on the copper (I) sulphide leaching with sodium chloride in hydrochloric acid solution and with introduction of gaseous oxygen. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the literature data and products which were formed during the process and the overall leaching reaction was defined. The influence of temperature and time on the leaching degree of copper was experimentally determined. The quantity of dissolved copper increases with the increase of both investigated parameters. Elemental sulphur was formed as the main leaching product, precipitated at the particle surfaces and chloride ions have a role to disrupt the creation of this passive layer.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Investigation of copper(i) sulphide leaching in oxidative hydrochloric acid solution
EP  - 258
IS  - 4
SP  - 253
VL  - 21
DO  - 10.30544/71
ER  - 

@article{
author = "Marković, Branislav and Sokić, Miroslav and Kamberović, Željko and Živković, Dragana and Štrbac, Nada and Manojlović, Vaso",
year = "2015",
abstract = "Present work is focused on the copper (I) sulphide leaching with sodium chloride in hydrochloric acid solution and with introduction of gaseous oxygen. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the literature data and products which were formed during the process and the overall leaching reaction was defined. The influence of temperature and time on the leaching degree of copper was experimentally determined. The quantity of dissolved copper increases with the increase of both investigated parameters. Elemental sulphur was formed as the main leaching product, precipitated at the particle surfaces and chloride ions have a role to disrupt the creation of this passive layer.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Investigation of copper(i) sulphide leaching in oxidative hydrochloric acid solution",
pages = "258-253",
number = "4",
volume = "21",
doi = "10.30544/71"
}

Marković, B., Sokić, M., Kamberović, Ž., Živković, D., Štrbac, N.,& Manojlović, V.. (2015). Investigation of copper(i) sulphide leaching in oxidative hydrochloric acid solution. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 21(4), 253-258.
https://doi.org/10.30544/71

Marković B, Sokić M, Kamberović Ž, Živković D, Štrbac N, Manojlović V. Investigation of copper(i) sulphide leaching in oxidative hydrochloric acid solution. in Metallurgical & Materials Engineering. 2015;21(4):253-258.
doi:10.30544/71 .

Marković, Branislav, Sokić, Miroslav, Kamberović, Željko, Živković, Dragana, Štrbac, Nada, Manojlović, Vaso, "Investigation of copper(i) sulphide leaching in oxidative hydrochloric acid solution" in Metallurgical & Materials Engineering, 21, no. 4 (2015):253-258,
https://doi.org/10.30544/71 . .

TY  - JOUR
AU  - Sokić, Miroslav
AU  - Gulišija, Zvonko
AU  - Ilić, Ilija B.
AU  - Marković, Branislav
AU  - Štrbac, Nada
AU  - Manojlović, Vaso
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2919
AB  - Besides iron ore, the main raw material of iron and steel production is steel scrap. This paper presents the quality and sources of creation the iron and steel scrap and estimation of their creation in the future. The content of impurities and trace elements to the scrap is very important and influencing to the quality of the obtained steel. Alloyed steel scrap known composition can often be used as an addition to a metal charge for steel production of the desired composition. Considering the steel scrap formation, the three major groups are elaborated: own scrap or circulation scrap, processing scrap and amortization scrap. The balancing model for estimating of steel scrap creation is based on the calculating the coefficients of the generation circulation, processing and amortization scrap, which are used as the basis for successful modelling.
AB  - Čelični otpadak je, pored železne rude, najvažnija sirovina za proizvodnju gvožđa i čelika. U radu je prikazan kvalitet i izvori nastajanja otpadaka gvožđa i čelika i prognoza njihovog nastajanja u budućnosti. Sadržaj nečistoća i oligoelemenata u otpatku je veoma važan i utiče na kvalitet dobijenog čelika. Legirani čelični otpadak poznatog sastava često može biti iskorišćen kao dodatak metalnom ulošku za proizvodnju čelika željenog sastava. U zavisnosti od mesta nastajanja razlikujemo tri grupe čeličnog otpatka: vlastiti ili recirkulacioni, otpadak pri obradi i amortizacioni otpadak. Model bilansiranja za prognozu nastajanja čeličnog otpatka zasnovan je na izračunavanju koeficijenata nastajanja proizvodnog i amortizacionog otpatka koji služe kao osnova za uspešno prognoziranje njihovog nastajanja u budućnosti.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Quality, sources and balancing of iron and steel scrap
T1  - Kvalitet, izvori i bilansiranje otpadaka gvožđa i čelika
EP  - 257
IS  - 2
SP  - 251
VL  - 70
DO  - 10.5937/tehnika1502251S
ER  - 

@article{
author = "Sokić, Miroslav and Gulišija, Zvonko and Ilić, Ilija B. and Marković, Branislav and Štrbac, Nada and Manojlović, Vaso",
year = "2015",
abstract = "Besides iron ore, the main raw material of iron and steel production is steel scrap. This paper presents the quality and sources of creation the iron and steel scrap and estimation of their creation in the future. The content of impurities and trace elements to the scrap is very important and influencing to the quality of the obtained steel. Alloyed steel scrap known composition can often be used as an addition to a metal charge for steel production of the desired composition. Considering the steel scrap formation, the three major groups are elaborated: own scrap or circulation scrap, processing scrap and amortization scrap. The balancing model for estimating of steel scrap creation is based on the calculating the coefficients of the generation circulation, processing and amortization scrap, which are used as the basis for successful modelling., Čelični otpadak je, pored železne rude, najvažnija sirovina za proizvodnju gvožđa i čelika. U radu je prikazan kvalitet i izvori nastajanja otpadaka gvožđa i čelika i prognoza njihovog nastajanja u budućnosti. Sadržaj nečistoća i oligoelemenata u otpatku je veoma važan i utiče na kvalitet dobijenog čelika. Legirani čelični otpadak poznatog sastava često može biti iskorišćen kao dodatak metalnom ulošku za proizvodnju čelika željenog sastava. U zavisnosti od mesta nastajanja razlikujemo tri grupe čeličnog otpatka: vlastiti ili recirkulacioni, otpadak pri obradi i amortizacioni otpadak. Model bilansiranja za prognozu nastajanja čeličnog otpatka zasnovan je na izračunavanju koeficijenata nastajanja proizvodnog i amortizacionog otpatka koji služe kao osnova za uspešno prognoziranje njihovog nastajanja u budućnosti.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Quality, sources and balancing of iron and steel scrap, Kvalitet, izvori i bilansiranje otpadaka gvožđa i čelika",
pages = "257-251",
number = "2",
volume = "70",
doi = "10.5937/tehnika1502251S"
}

Sokić, M., Gulišija, Z., Ilić, I. B., Marković, B., Štrbac, N.,& Manojlović, V.. (2015). Quality, sources and balancing of iron and steel scrap. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 70(2), 251-257.
https://doi.org/10.5937/tehnika1502251S

Sokić M, Gulišija Z, Ilić IB, Marković B, Štrbac N, Manojlović V. Quality, sources and balancing of iron and steel scrap. in Tehnika. 2015;70(2):251-257.
doi:10.5937/tehnika1502251S .

Sokić, Miroslav, Gulišija, Zvonko, Ilić, Ilija B., Marković, Branislav, Štrbac, Nada, Manojlović, Vaso, "Quality, sources and balancing of iron and steel scrap" in Tehnika, 70, no. 2 (2015):251-257,
https://doi.org/10.5937/tehnika1502251S . .

TY  - JOUR
AU  - Marković, Branislav
AU  - Sokić, Miroslav
AU  - Ilić, Ilija
AU  - Manojlović, Vaso
AU  - Gulišija, Zvonko
AU  - Živković, Dragana
AU  - Štrbac, Nada
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2959
AB  - Materials for recycling always contain a certain degree of contamination. The presence of impurities i.e. contamination in the recycling streams causes a change in the composition of the original materials to recycle. As a result, the quality of materials can be reduced in each successive step of recycling. In addition, the resources of lower quality are produced from the resource flows which had a higher quality in their original form. This kind losses of quality cannot be measured by mass balance, as well as the quality degradation not only can display measurements of mass. For the calculation of all losses caused by recycling contaminations, all further recycling processes required to return the materials back into resource cycles must be included. The method for calculating the exergy content and exergy losses of metal solutions during recovery and recycling is presented in this paper. The losses attributed to recycling, namely the material losses, the contamination losses with other metals, and the consequent need for dilution can be used as indicators of the quality loss of materials and of the efficiency of resource use in product systems. Therefore, exergy is proposed here as a measure of the efficiency of resources use. This paper presents calculations of exergy losses during recycling shown in the case of aluminum waste.
AB  - Materijali za recikliranje uvek sadrže izvestan stepen nečistoća. Prisustvo nečistoća tj. kontaminacija u reciklažnim tokovima izaziva promenu u izvornom sastavu materijala za reciklažu. Usled toga, kvalitet materijala može se smanjivati u svakom narednom koraku reciklaže. Pored toga, resursi nižeg kvaliteta proizvedeni su iz resursnih tokova koji su u izvornom obliku imali viši kvalitet. Ovakvi gubici kvaliteta ne mogu da se mere masenim bilansima, isto kao što se degradacija kvaliteta ne može prikazati samo merenjem mase. Za proračun svih gubitaka prouzrokovanih reciklažnom kontaminacijom, svi dalji procesi reciklaže potrebni da bi se materijali vratili nazad u resursne cikluse moraju biti uključeni. U ovom radu prikazan je metod za izračunavanje eksergijskog sadržaja i eksergijskog gubitka metalnih rastvora u toku iskorišćnja i reciklaže. Gubici pripisani reciklaži ili tačnije materijalni gubici, gubici usled kontaminacije drugim metalima i posledično potreba za razblaživanjem, mogu se koristiti kao indikatori gubitka kvaliteta materijala i efikasnosti korišćenja resursa u proizvodnim sistemima. Dakle, ovde je eksergija predložena kao mera efikasnosti korišćenja resursa. U radu su proračuni eksergijskih gubitaka tokom reciklaže prikazani na primeru aluminijumskog otpada.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Application of exergy analysis in recycling streams
T1  - Primena eksergijske analize u reciklažnim tokovima
EP  - 231
IS  - 2
SP  - 224
VL  - 56
DO  - 10.5937/ZasMat1502224M
ER  - 

@article{
author = "Marković, Branislav and Sokić, Miroslav and Ilić, Ilija and Manojlović, Vaso and Gulišija, Zvonko and Živković, Dragana and Štrbac, Nada",
year = "2015",
abstract = "Materials for recycling always contain a certain degree of contamination. The presence of impurities i.e. contamination in the recycling streams causes a change in the composition of the original materials to recycle. As a result, the quality of materials can be reduced in each successive step of recycling. In addition, the resources of lower quality are produced from the resource flows which had a higher quality in their original form. This kind losses of quality cannot be measured by mass balance, as well as the quality degradation not only can display measurements of mass. For the calculation of all losses caused by recycling contaminations, all further recycling processes required to return the materials back into resource cycles must be included. The method for calculating the exergy content and exergy losses of metal solutions during recovery and recycling is presented in this paper. The losses attributed to recycling, namely the material losses, the contamination losses with other metals, and the consequent need for dilution can be used as indicators of the quality loss of materials and of the efficiency of resource use in product systems. Therefore, exergy is proposed here as a measure of the efficiency of resources use. This paper presents calculations of exergy losses during recycling shown in the case of aluminum waste., Materijali za recikliranje uvek sadrže izvestan stepen nečistoća. Prisustvo nečistoća tj. kontaminacija u reciklažnim tokovima izaziva promenu u izvornom sastavu materijala za reciklažu. Usled toga, kvalitet materijala može se smanjivati u svakom narednom koraku reciklaže. Pored toga, resursi nižeg kvaliteta proizvedeni su iz resursnih tokova koji su u izvornom obliku imali viši kvalitet. Ovakvi gubici kvaliteta ne mogu da se mere masenim bilansima, isto kao što se degradacija kvaliteta ne može prikazati samo merenjem mase. Za proračun svih gubitaka prouzrokovanih reciklažnom kontaminacijom, svi dalji procesi reciklaže potrebni da bi se materijali vratili nazad u resursne cikluse moraju biti uključeni. U ovom radu prikazan je metod za izračunavanje eksergijskog sadržaja i eksergijskog gubitka metalnih rastvora u toku iskorišćnja i reciklaže. Gubici pripisani reciklaži ili tačnije materijalni gubici, gubici usled kontaminacije drugim metalima i posledično potreba za razblaživanjem, mogu se koristiti kao indikatori gubitka kvaliteta materijala i efikasnosti korišćenja resursa u proizvodnim sistemima. Dakle, ovde je eksergija predložena kao mera efikasnosti korišćenja resursa. U radu su proračuni eksergijskih gubitaka tokom reciklaže prikazani na primeru aluminijumskog otpada.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Application of exergy analysis in recycling streams, Primena eksergijske analize u reciklažnim tokovima",
pages = "231-224",
number = "2",
volume = "56",
doi = "10.5937/ZasMat1502224M"
}

Marković, B., Sokić, M., Ilić, I., Manojlović, V., Gulišija, Z., Živković, D.,& Štrbac, N.. (2015). Application of exergy analysis in recycling streams. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 56(2), 224-231.
https://doi.org/10.5937/ZasMat1502224M

Marković B, Sokić M, Ilić I, Manojlović V, Gulišija Z, Živković D, Štrbac N. Application of exergy analysis in recycling streams. in Zaštita materijala. 2015;56(2):224-231.
doi:10.5937/ZasMat1502224M .

Marković, Branislav, Sokić, Miroslav, Ilić, Ilija, Manojlović, Vaso, Gulišija, Zvonko, Živković, Dragana, Štrbac, Nada, "Application of exergy analysis in recycling streams" in Zaštita materijala, 56, no. 2 (2015):224-231,
https://doi.org/10.5937/ZasMat1502224M . .