发明名称 |
RECOVERY OF NICKEL FROM BIOLEACH SOLUTION |
摘要 |
<p>A bioleaching method is provided for recovering a nickel from an ore selecte d from the group consisting nickel-containing lateritic ores and nickel-containing sulfidic ores or concentrates thereof. Where the ore selected is a nickel-containing lateritic ore, at least one micro-organism selective to the leaching of the lateritic ore is provided as an aqueous solution thereof maintained at a pH ranging from about 1 to 3 including a nutrient for the micro-organism. The ore either as a slurry, a heap, or a charge in a vat is bioleached for a time sufficient to effect the dissolution of the nickel in the ore and form a solution thereof and a residue which is separated from the solution. The nickel is then selectively extracted from the solution using an ion exchange resin, and the nickel thereafter extracted from the resin using a mineral acid.</p> |
申请公布号 |
CA2270079(C) |
申请公布日期 |
2004.08.24 |
申请号 |
CA19962270079 |
申请日期 |
1996.12.12 |
申请人 |
BHP MINERALS INTERNATIONAL, INC. |
发明人 |
DUYVESTEYN, WILLEM P. C.;OMOFOMA, MATT A. |
分类号 |
C22B23/00;C22B3/16;C22B3/18;C22B3/24;C22B3/42;(IPC1-7):C22B3/18 |
主分类号 |
C22B23/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|