发明名称 |
FREMGANGSMAATE VED UTVINNING AV KOBBERINNHOLDET I SULFIDISKE MALMER OG KONSENTRATER. |
摘要 |
<p>Copper content in sulphide-containing materials such as ores or concentrates is extracted by leaching the material by means of a leaching solution containing iron (III) chloride and copper (II) chloride, the leaching process being regulated in order to keep the red-ox potential in the leach solution between 430 mV and 460 mV, whereby iron (III) chloride is reduced to iron (II) chloride while copper (II) chloride is kept in the bivalent state. The copper content in the ore or concentrate is thereby leached as copper (II) chloride. Copper (II) chloride is thereafter extracted from the pregnant leach solution by contacting the solution with an organic complex-ion forming extractant which extraction properties are dependent on the chloride concentration.</p> |
申请公布号 |
NO156724(C) |
申请公布日期 |
1987.11.11 |
申请号 |
NO19830002496 |
申请日期 |
1983.07.08 |
申请人 |
ELKEM A/S |
发明人 |
ANDERSEN, EINAR;BOEE, GUNNAR HAAGEN |
分类号 |
C01G3/00;C01G49/00;C22B3/32;C22B15/00;(IPC1-7):C22B15/00 |
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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