发明名称 |
EXTRACTION PROCESS FOR METALS LIKE GOLD AND PLATINUM INCLUDING FINE GRINDING, PULPING AND OXYGENATING |
摘要 |
<p>This invention relates to a process for obtaining metal values, typically base metals, platinum or gold from a feed material. In a first step of the process of the invention, feed material containing metal values is ground to a particle size d<SUB>90</SUB> of 100 microns or less to form an ultra fine pulp. In a second step of the process of the invention, 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 of the invention 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 |
WO2006064350(A1) |
申请公布日期 |
2006.06.22 |
申请号 |
WO2005IB03786 |
申请日期 |
2005.12.15 |
申请人 |
D GREENHILLS MINING AND INDUSTRIAL SERVICES (PTY)LT;SINGH, ADRIAN;TINNISWOOD, BRIAN;BATTERSBY, MICHAEL;IMHOF, RAINER |
发明人 |
SINGH, ADRIAN;TINNISWOOD, BRIAN;BATTERSBY, MICHAEL;IMHOF, RAINER |
分类号 |
C22B1/00;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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