| 发明名称 |
FREMGANGSMAATE VED UTLUTING AV SULFIDER INNEHOLDENDE SINK OG JERN. |
| 摘要 |
<p>The extraction of zinc and copper and the recovery of precious metals from sulphurous zinciferous materials, also containing iron, becomes possible when these are treated by leaching under pressure in two stages, by judiciously controlling the relative quantities of sulphurous materials and acid.</p> |
| 申请公布号 |
NO162772(B) |
申请公布日期 |
1989.11.06 |
| 申请号 |
NO19850002086 |
申请日期 |
1985.05.24 |
| 申请人 |
SOC DES MINES ET FONDERIES DE ZINC DE LA VIEILLE MONTAGNE |
发明人 |
ANDRE, JEAN ALFRED AUGUSTE |
| 分类号 |
C01G3/00;C01G9/00;C01G49/00;C22B3/00;C22B3/04;C22B3/08;C22B15/00;C22B19/00;C22B19/20;(IPC1-7):C22B19/22 |
主分类号 |
C01G3/00 |
| 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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