发明名称 |
VON CHLORID UNTERSTÜZTE NASSCHEMISCHE EXTRAKTION VON NICKEL UND KOBALT AUS SULFID- UND LATERITERZEN |
摘要 |
<p>A process for the extraction of metal from an ore or concentrate which contains nickel and/or cobalt values and other metals, comprises subjecting the ore or concentrate to acid leaching under pressure at pH<=2 to obtain a liquor containing nickel and/or cobalt values, subjecting the liquor to a first precipitation stage at pH of about 5 to 6 to produce a solid containing non nickel and non cobalt metals and a resultant solution containing the nickel and/or cobalt values and subjecting the resultant solution to a second precipitation stage at a pH of about 7 to 8 to produce a solid containing nickel and/or cobalt.</p> |
申请公布号 |
DE69811690(D1) |
申请公布日期 |
2003.04.03 |
申请号 |
DE1998611690 |
申请日期 |
1998.08.14 |
申请人 |
COMINCO ENGINEERING SERVICES LTD., VANCOUVER |
发明人 |
JONES, L. |
分类号 |
C22B9/02;C22B3/04;C22B3/06;C22B3/08;C22B3/10;C22B3/26;C22B3/44;C22B15/00;C22B23/00;C22B26/22;C22B47/00;(IPC1-7):C22B23/00 |
主分类号 |
C22B9/02 |
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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