Luženje polimetalnog Cu-Zn-Pb koncentrata natrijum-nitratom i sumpornom kiselinom
Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid

2021
Authors
Sokić, Miroslav
Marković, Branislav

Milojkov, Dušan

Patarić, Aleksandra

Bugarčić, Mladen

Jovanović, Gvozden

Pantović-Spajić, Katarina

Article (Published version)
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U radu su prikazani i diskutovani rezultati luženja polimetalnog sulfidnog Cu-Zn-Pb koncentrata rastvorom natrijum-nitrata i sumporne kiseline pri atmosferskom pritisku. Prikazan je hemijski i mineraloški sastav polaznog koncentrata i čvrstih ostataka nakon procesa luženja. Hemijske reakcije luženja i mogućnosti njihovog odvijanja analizirane su primenom termodinamičke analize na osnovu izračunatih Gibbsovih energija i analize E-pH dijagrama. Eksperimentalno je analiziran uticaj temperature i vremena na stepen izluženja korisnih metala iz sulfidnog koncentrata. Pokazano je da je moguće dobiti bakar, cink i železo u rastvoru u obliku sulfata, dok olovo u obliku anglesita (PbSO4) ostaje u čvrstom ostatku nakon procesa luženja. Železo se oksidiše u Fe (III) -sulfat, koji učestvuje u luženju sulfidnih minerala i prelazi u Fe (II) -sulfat.
The results of polymetallic sulphide Cu-Zn-Pb concentrate leaching with sulphuric acid in the presence of sodium nitrate as an oxidizing agent, at atmospheric pressure, are presented and discussed. Chemical composition and phase ratio of the starting concentrate and solid residuals after the leaching process are shown. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the calculated Gibbs energies and analysis of E-pH diagrams. The influence of temperature and time on the leaching degree of the concentrate's components is experimentally determined. It is shown that it is possible to obtain copper, zinc and iron in a solute form, while lead in the anglesite (PbSO4) form remains in the solid residual after the leaching process. The iron is being oxidized to Fe(III)-sulphate, which takes part in a sulphide leached minerals and turns into Fe(II)-sulphate.
Keywords:
sumporna kiselina / polimetalni Cu-Zn-Pb koncentrat / natrijum-nitrat / luženje / sulphuric acid / sodium nitrate / polymetallic Cu-Zn-Pb concentrate / leachingSource:
Tehnika, 2021, 76, 4, 426-436Publisher:
- Savez inženjera i tehničara Srbije, Beograd
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Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Sokić, Miroslav AU - Marković, Branislav AU - Milojkov, Dušan AU - Patarić, Aleksandra AU - Bugarčić, Mladen AU - Jovanović, Gvozden AU - Pantović-Spajić, Katarina PY - 2021 UR - https://ritnms.itnms.ac.rs/handle/123456789/558 AB - U radu su prikazani i diskutovani rezultati luženja polimetalnog sulfidnog Cu-Zn-Pb koncentrata rastvorom natrijum-nitrata i sumporne kiseline pri atmosferskom pritisku. Prikazan je hemijski i mineraloški sastav polaznog koncentrata i čvrstih ostataka nakon procesa luženja. Hemijske reakcije luženja i mogućnosti njihovog odvijanja analizirane su primenom termodinamičke analize na osnovu izračunatih Gibbsovih energija i analize E-pH dijagrama. Eksperimentalno je analiziran uticaj temperature i vremena na stepen izluženja korisnih metala iz sulfidnog koncentrata. Pokazano je da je moguće dobiti bakar, cink i železo u rastvoru u obliku sulfata, dok olovo u obliku anglesita (PbSO4) ostaje u čvrstom ostatku nakon procesa luženja. Železo se oksidiše u Fe (III) -sulfat, koji učestvuje u luženju sulfidnih minerala i prelazi u Fe (II) -sulfat. AB - The results of polymetallic sulphide Cu-Zn-Pb concentrate leaching with sulphuric acid in the presence of sodium nitrate as an oxidizing agent, at atmospheric pressure, are presented and discussed. Chemical composition and phase ratio of the starting concentrate and solid residuals after the leaching process are shown. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the calculated Gibbs energies and analysis of E-pH diagrams. The influence of temperature and time on the leaching degree of the concentrate's components is experimentally determined. It is shown that it is possible to obtain copper, zinc and iron in a solute form, while lead in the anglesite (PbSO4) form remains in the solid residual after the leaching process. The iron is being oxidized to Fe(III)-sulphate, which takes part in a sulphide leached minerals and turns into Fe(II)-sulphate. PB - Savez inženjera i tehničara Srbije, Beograd T2 - Tehnika T1 - Luženje polimetalnog Cu-Zn-Pb koncentrata natrijum-nitratom i sumpornom kiselinom T1 - Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid EP - 436 IS - 4 SP - 426 VL - 76 DO - 10.5937/tehnika2104426S UR - conv_33 ER -
@article{ author = "Sokić, Miroslav and Marković, Branislav and Milojkov, Dušan and Patarić, Aleksandra and Bugarčić, Mladen and Jovanović, Gvozden and Pantović-Spajić, Katarina", year = "2021", abstract = "U radu su prikazani i diskutovani rezultati luženja polimetalnog sulfidnog Cu-Zn-Pb koncentrata rastvorom natrijum-nitrata i sumporne kiseline pri atmosferskom pritisku. Prikazan je hemijski i mineraloški sastav polaznog koncentrata i čvrstih ostataka nakon procesa luženja. Hemijske reakcije luženja i mogućnosti njihovog odvijanja analizirane su primenom termodinamičke analize na osnovu izračunatih Gibbsovih energija i analize E-pH dijagrama. Eksperimentalno je analiziran uticaj temperature i vremena na stepen izluženja korisnih metala iz sulfidnog koncentrata. Pokazano je da je moguće dobiti bakar, cink i železo u rastvoru u obliku sulfata, dok olovo u obliku anglesita (PbSO4) ostaje u čvrstom ostatku nakon procesa luženja. Železo se oksidiše u Fe (III) -sulfat, koji učestvuje u luženju sulfidnih minerala i prelazi u Fe (II) -sulfat., The results of polymetallic sulphide Cu-Zn-Pb concentrate leaching with sulphuric acid in the presence of sodium nitrate as an oxidizing agent, at atmospheric pressure, are presented and discussed. Chemical composition and phase ratio of the starting concentrate and solid residuals after the leaching process are shown. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the calculated Gibbs energies and analysis of E-pH diagrams. The influence of temperature and time on the leaching degree of the concentrate's components is experimentally determined. It is shown that it is possible to obtain copper, zinc and iron in a solute form, while lead in the anglesite (PbSO4) form remains in the solid residual after the leaching process. The iron is being oxidized to Fe(III)-sulphate, which takes part in a sulphide leached minerals and turns into Fe(II)-sulphate.", publisher = "Savez inženjera i tehničara Srbije, Beograd", journal = "Tehnika", title = "Luženje polimetalnog Cu-Zn-Pb koncentrata natrijum-nitratom i sumpornom kiselinom, Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid", pages = "436-426", number = "4", volume = "76", doi = "10.5937/tehnika2104426S", url = "conv_33" }
Sokić, M., Marković, B., Milojkov, D., Patarić, A., Bugarčić, M., Jovanović, G.,& Pantović-Spajić, K.. (2021). Luženje polimetalnog Cu-Zn-Pb koncentrata natrijum-nitratom i sumpornom kiselinom. in Tehnika Savez inženjera i tehničara Srbije, Beograd., 76(4), 426-436. https://doi.org/10.5937/tehnika2104426S conv_33
Sokić M, Marković B, Milojkov D, Patarić A, Bugarčić M, Jovanović G, Pantović-Spajić K. Luženje polimetalnog Cu-Zn-Pb koncentrata natrijum-nitratom i sumpornom kiselinom. in Tehnika. 2021;76(4):426-436. doi:10.5937/tehnika2104426S conv_33 .
Sokić, Miroslav, Marković, Branislav, Milojkov, Dušan, Patarić, Aleksandra, Bugarčić, Mladen, Jovanović, Gvozden, Pantović-Spajić, Katarina, "Luženje polimetalnog Cu-Zn-Pb koncentrata natrijum-nitratom i sumpornom kiselinom" in Tehnika, 76, no. 4 (2021):426-436, https://doi.org/10.5937/tehnika2104426S ., conv_33 .