发明名称 |
Extraction process for metals like gold and platinum including fine grinding, pulping and oxygenating |
摘要 |
<p>A process for obtaining metal values, typically base metals, platinum or gold from a feed material. In a first step of the process, feed material containing metal values is ground to a particle size d90 of 100 microns or less to form an ultra fine pulp. In a second step, the ultra fine ground pulp from the first step is oxygenated by pumping it in multiple passes through an in-line high shear static oxygenation device (30), while re-circulating it on a tank (28) or any other vessel. The process results in a significant reduction in the required leach time, improved recoveries, reduced cyanide consumptions, a steadier gold tail, as well as reduced capital and operational expenditure.</p> |
申请公布号 |
NZ556382(A) |
申请公布日期 |
2009.09.25 |
申请号 |
NZ20050556382 |
申请日期 |
2005.12.15 |
申请人 |
MAELGWYN MINERAL SERVICES AFRICA (PROPRIETARY) LIMITED |
发明人 |
SINGH, ADRIAN;TINNISWOOD, BRIAN;BATTERSBY, MICHAEL;IMHOF, RAINER |
分类号 |
C22B1/00;C22B1/11;C22B3/00;C22B3/04;C22B11/00;C22B11/08 |
主分类号 |
C22B1/00 |
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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