发明名称 |
Zinc electrolyte treatment. |
摘要 |
<p>A neutral leach filtrate containing an oxidant selected from permanganate and manganate ions and mixtures thereof is treated with a reducing agent selected from ZnSO3, SO2 or mixtures thereof in amounts sufficient to substantially reduce all the manganese ions present (permanganate and/or manganate) to the divalent state and to provide a zinc sulfate solution having a predetermined pH. …<??>Such a solution consumes appreciably less zinc in the known zinc dust purification or cementation step prior to zinc recovery by electrodeposition or like process.</p> |
申请公布号 |
EP0131470(A2) |
申请公布日期 |
1985.01.16 |
申请号 |
EP19840304737 |
申请日期 |
1984.07.11 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
HOFFMANN, JAMES EDWARD |
分类号 |
C01G9/06;C22B19/00;C25C1/16;C25D3/22;(IPC1-7):C01G9/06;C22B19/26 |
主分类号 |
C01G9/06 |
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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