TY  - JOUR
AU  - Ranitović, Milisav
AU  - Kamberović, Željko
AU  - Korać, Marija S.
AU  - Radovanović, Dragana
AU  - Sokić, Miroslav
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/548
AB  - Visoka fleksibilnost, ekonomičnost i ekološka prihvatljivost hidrometalurških operacija nude mogućnost za selektivno dobijanje metala u ranim fazama tehnološkog procesa. To omogućava primenu hidrometalurških operacija u preradi ruda koje, zbog kompleksnog sastava ili niskog sadržaja metala, nisu pogodne za pirometalurški tretman. Nasuprot sulfidnim mineralima, za luženje oksidnih ruda nije potrebno prisustvo oksidansa. U ovom radu prikazani su rezultati ispitivanja uticaja temperature na stepen izluženja bakra iz piritno-halkopiritnog koncentrata rastvorom sumporne kiseline pri atmosferskom pritisku. Na osnovu dobijenih rezultata utvrđeno je da povećanje temperature luženja značajno doprinosi povećanju efikasnosti izluženja pri čemu nakon 6 sati luženja na 40°C postignuta efikasnost je iznosila 90,6%.
AB  - High flexibility of hydrometallurgical operations as well as economic and environmental acceptability, offer the opportunity to selectively obtain metals in the early stages of the processing. This enables the application of hydrometallurgical operations in processing of ores which, due to their complex composition or low copper content, are not suitable for pyrometallurgical treatment. In contrast to sulfide minerals, leaching of oxide ores does not requires presence of oxidizing agent. This paper presents the results of influence of temperature on the leaching degree of copper from pyritechalcopyrite concentrate by sulfuric acid solution at atmospheric pressure. According to the obtained results, it was found that an increase in the leaching temperature significantly contributes to the increase in the leaching efficiency, where after 6 hours of leaching at 40°C achieved efficiency was 90.6%.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Atmosfersko luženje bakra iz oksidno-sulfidne rude rastvorom sumporne kiseline
T1  - Atmospheric leaching of copper from oxide-sulfide ore using sulfuric acid
EP  - 175
IS  - 2
SP  - 172
VL  - 75
DO  - 10.5937/tehnika2002172R
UR  - conv_28
ER  - 

@article{
author = "Ranitović, Milisav and Kamberović, Željko and Korać, Marija S. and Radovanović, Dragana and Sokić, Miroslav",
year = "2020",
abstract = "Visoka fleksibilnost, ekonomičnost i ekološka prihvatljivost hidrometalurških operacija nude mogućnost za selektivno dobijanje metala u ranim fazama tehnološkog procesa. To omogućava primenu hidrometalurških operacija u preradi ruda koje, zbog kompleksnog sastava ili niskog sadržaja metala, nisu pogodne za pirometalurški tretman. Nasuprot sulfidnim mineralima, za luženje oksidnih ruda nije potrebno prisustvo oksidansa. U ovom radu prikazani su rezultati ispitivanja uticaja temperature na stepen izluženja bakra iz piritno-halkopiritnog koncentrata rastvorom sumporne kiseline pri atmosferskom pritisku. Na osnovu dobijenih rezultata utvrđeno je da povećanje temperature luženja značajno doprinosi povećanju efikasnosti izluženja pri čemu nakon 6 sati luženja na 40°C postignuta efikasnost je iznosila 90,6%., High flexibility of hydrometallurgical operations as well as economic and environmental acceptability, offer the opportunity to selectively obtain metals in the early stages of the processing. This enables the application of hydrometallurgical operations in processing of ores which, due to their complex composition or low copper content, are not suitable for pyrometallurgical treatment. In contrast to sulfide minerals, leaching of oxide ores does not requires presence of oxidizing agent. This paper presents the results of influence of temperature on the leaching degree of copper from pyritechalcopyrite concentrate by sulfuric acid solution at atmospheric pressure. According to the obtained results, it was found that an increase in the leaching temperature significantly contributes to the increase in the leaching efficiency, where after 6 hours of leaching at 40°C achieved efficiency was 90.6%.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Atmosfersko luženje bakra iz oksidno-sulfidne rude rastvorom sumporne kiseline, Atmospheric leaching of copper from oxide-sulfide ore using sulfuric acid",
pages = "175-172",
number = "2",
volume = "75",
doi = "10.5937/tehnika2002172R",
url = "conv_28"
}

Ranitović, M., Kamberović, Ž., Korać, M. S., Radovanović, D.,& Sokić, M.. (2020). Atmosfersko luženje bakra iz oksidno-sulfidne rude rastvorom sumporne kiseline. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 75(2), 172-175.
https://doi.org/10.5937/tehnika2002172R
conv_28

Ranitović M, Kamberović Ž, Korać MS, Radovanović D, Sokić M. Atmosfersko luženje bakra iz oksidno-sulfidne rude rastvorom sumporne kiseline. in Tehnika. 2020;75(2):172-175.
doi:10.5937/tehnika2002172R
conv_28 .

Ranitović, Milisav, Kamberović, Željko, Korać, Marija S., Radovanović, Dragana, Sokić, Miroslav, "Atmosfersko luženje bakra iz oksidno-sulfidne rude rastvorom sumporne kiseline" in Tehnika, 75, no. 2 (2020):172-175,
https://doi.org/10.5937/tehnika2002172R .,
conv_28 .

TY  - JOUR
AU  - Radovanović, Dragana
AU  - Kamberović, Željko
AU  - Anđić, Zoran
AU  - Ranitović, Milisav
AU  - Marković, Branislav
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/479
AB  - Jarosite and neutral leaching residue (NLR) are the greatest environmental problems of hydrometallurgical zinc production due to their high quantity and hazardous content. Pyrometallurgical processes, such as the Waelz process, could be applied to recover valuable metals present in this waste. The paper investigates the possibility of forming environmentally stable Waelz slag after the Waelz process of jarosite and NLR. Waelz slag, obtained using CaO as a conventional alkaline additive in the Waelz process, showed high As and Sb release after the EN 12457-4 standard leaching test. Multiphase equilibrium composition calculations indicated that As and Sb were present as volatile and migratory species in the slag. In order to obtain Waelz slag with more stable matrices that would encapsulate and immobilize pollutants, MgO additions to CaO and different cooling conditions of the slag were further investigated. The efficiency of modification in additives composition and cooling conditions was assessed by EN 12457-4 leaching test and chemical and microstructural characterization (XRF and SEM-EDS analyses) of the Waelz slags. The results show that addition of MgO does not reduce the efficiency of the process, even more it increases leaching resistance of the slags. Concentrations of all investigated metals (As, Ba, Cu, Mo, Pb, Sb, Zn) after the leaching test were below defined limits for non-hazardous waste. Microstructural analyses revealed that MgO remained inert during Waelz process, and thus favoring the formation of amorphous stable structure, which was enhanced by increased cooling rate. All investigated Waelz slags with MgO additions are suitable for further use or safe disposal.
PB  - Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw
T2  - Physicochemical Problems of Mineral Processing
T1  - The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process
EP  - 495
IS  - 2
SP  - 484
VL  - 54
DO  - 10.5277/ppmp1842
UR  - conv_827
ER  - 

@article{
author = "Radovanović, Dragana and Kamberović, Željko and Anđić, Zoran and Ranitović, Milisav and Marković, Branislav",
year = "2018",
abstract = "Jarosite and neutral leaching residue (NLR) are the greatest environmental problems of hydrometallurgical zinc production due to their high quantity and hazardous content. Pyrometallurgical processes, such as the Waelz process, could be applied to recover valuable metals present in this waste. The paper investigates the possibility of forming environmentally stable Waelz slag after the Waelz process of jarosite and NLR. Waelz slag, obtained using CaO as a conventional alkaline additive in the Waelz process, showed high As and Sb release after the EN 12457-4 standard leaching test. Multiphase equilibrium composition calculations indicated that As and Sb were present as volatile and migratory species in the slag. In order to obtain Waelz slag with more stable matrices that would encapsulate and immobilize pollutants, MgO additions to CaO and different cooling conditions of the slag were further investigated. The efficiency of modification in additives composition and cooling conditions was assessed by EN 12457-4 leaching test and chemical and microstructural characterization (XRF and SEM-EDS analyses) of the Waelz slags. The results show that addition of MgO does not reduce the efficiency of the process, even more it increases leaching resistance of the slags. Concentrations of all investigated metals (As, Ba, Cu, Mo, Pb, Sb, Zn) after the leaching test were below defined limits for non-hazardous waste. Microstructural analyses revealed that MgO remained inert during Waelz process, and thus favoring the formation of amorphous stable structure, which was enhanced by increased cooling rate. All investigated Waelz slags with MgO additions are suitable for further use or safe disposal.",
publisher = "Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw",
journal = "Physicochemical Problems of Mineral Processing",
title = "The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process",
pages = "495-484",
number = "2",
volume = "54",
doi = "10.5277/ppmp1842",
url = "conv_827"
}

Radovanović, D., Kamberović, Ž., Anđić, Z., Ranitović, M.,& Marković, B.. (2018). The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process. in Physicochemical Problems of Mineral Processing
Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw., 54(2), 484-495.
https://doi.org/10.5277/ppmp1842
conv_827

Radovanović D, Kamberović Ž, Anđić Z, Ranitović M, Marković B. The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process. in Physicochemical Problems of Mineral Processing. 2018;54(2):484-495.
doi:10.5277/ppmp1842
conv_827 .

Radovanović, Dragana, Kamberović, Željko, Anđić, Zoran, Ranitović, Milisav, Marković, Branislav, "The effect of CaO and MgO addition and cooling rate on stability of slag obtained after jarosite and neutral leaching residue treatment in the Waelz process" in Physicochemical Problems of Mineral Processing, 54, no. 2 (2018):484-495,
https://doi.org/10.5277/ppmp1842 .,
conv_827 .