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| Study on Leaching Silver from Refractory Silver Sulfide Materials |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Ammonium thiocyanate;Cementation;Mn-stripped residue;Oxygen pressure;Silver; |
| CHEN Geng-tao,GUO Huan,YANG Sheng-hai |
| School of Metallurgical Science and Engineering/a>;Central South University/a>;Changsha 410083/a>;China |
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| Abstract: |
| A new technique for extraction silver from silver sulfide materials,such as flotation concentrates of zinc hydrometallurgical hot-acid leaching residue and Mn-stripped residue of silver-manganese sulfide concentrate,have been investigated.This new method includes two processes,oxygen pressure leaching in ammonium thiocyanate solution and iron powder cementation.The results show that the leaching ratios of silver from silver flotation concentrates and Mn-stripped residues are more than 95% and about 88%,resp... |
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