Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid
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 leachin...
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Savez inženjera i tehničara Srbije
2021
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oai:doaj.org-article:e34201cb48894924bf39b621932f62f32021-12-05T21:39:59ZLeaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid0040-21762560-308610.5937/tehnika2104426Shttps://doaj.org/article/e34201cb48894924bf39b621932f62f32021-01-01T00:00:00Zhttps://scindeks-clanci.ceon.rs/data/pdf/0040-2176/2021/0040-21762104426S.pdfhttps://doaj.org/toc/0040-2176https://doaj.org/toc/2560-3086The 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.Sokić Miroslav D.Marković Branislav R.Milojkov Dušan V.Patarić Aleksandra S.Bugarčić Mladen D.Jovanović Gvozden B.Pantović-Spajić Katarina R.Savez inženjera i tehničara Srbijearticlepolymetallic cu-zn-pb concentrateleachingsodium nitratesulphuric acidEngineering (General). Civil engineering (General)TA1-2040ENSRTehnika, Vol 76, Iss 4, Pp 426-436 (2021) |
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DOAJ |
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DOAJ |
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EN SR |
| topic |
polymetallic cu-zn-pb concentrate leaching sodium nitrate sulphuric acid Engineering (General). Civil engineering (General) TA1-2040 |
| spellingShingle |
polymetallic cu-zn-pb concentrate leaching sodium nitrate sulphuric acid Engineering (General). Civil engineering (General) TA1-2040 Sokić Miroslav D. Marković Branislav R. Milojkov Dušan V. Patarić Aleksandra S. Bugarčić Mladen D. Jovanović Gvozden B. Pantović-Spajić Katarina R. Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid |
| description |
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. |
| format |
article |
| author |
Sokić Miroslav D. Marković Branislav R. Milojkov Dušan V. Patarić Aleksandra S. Bugarčić Mladen D. Jovanović Gvozden B. Pantović-Spajić Katarina R. |
| author_facet |
Sokić Miroslav D. Marković Branislav R. Milojkov Dušan V. Patarić Aleksandra S. Bugarčić Mladen D. Jovanović Gvozden B. Pantović-Spajić Katarina R. |
| author_sort |
Sokić Miroslav D. |
| title |
Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid |
| title_short |
Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid |
| title_full |
Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid |
| title_fullStr |
Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid |
| title_full_unstemmed |
Leaching of polymetallic Cu-Zn-Pb concentrate with sodium nitrate in sulphuric acid |
| title_sort |
leaching of polymetallic cu-zn-pb concentrate with sodium nitrate in sulphuric acid |
| publisher |
Savez inženjera i tehničara Srbije |
| publishDate |
2021 |
| url |
https://doaj.org/article/e34201cb48894924bf39b621932f62f3 |
| work_keys_str_mv |
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