发明名称 |
Process for the recovery of silver values from silver-containing material which also contains iron and arsenic |
摘要 |
A process for the recovery of silver values from silver-containing material which also contains iron and arsenic includes leaching the material under oxidizing conditions at elevated temperature and pressure in aqueous nitric acid solution to dissolve a substantial amount of silver together with substantial amounts of arsenic, iron and other metals if present. The resultant leach solution is separated from undissolved leach residue and treated with a solution containing chloride ions to selectively precipitate substantially all dissolved silver as silver chloride without significant co-precipitation of other dissolved metals. The silver chloride precipitate is then separated from the remaining solution.
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申请公布号 |
US4331469(A) |
申请公布日期 |
1982.05.25 |
申请号 |
US19800179613 |
申请日期 |
1980.08.19 |
申请人 |
SHERRITT GORDON MINES LIMITED |
发明人 |
KUNDA, WASYL |
分类号 |
C22B11/00;(IPC1-7):C22B11/04 |
主分类号 |
C22B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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