发明名称 |
Hydrometallurgical leaching process and apparatus |
摘要 |
A process and apparatus for leaching metal values from a particulate mineral ore containing metal values employs a fluidized bed of the particles; a leaching agent solution containing dissolved oxygen flows upwardly of the bed in a lower leaching zone, to an upper clarification zone; a velocity profile is maintained to promote settling of particles so that the particulate solids remain in the leaching zone and a clarified leachant-containing liquid low in suspended solids rises and collects in the clarification zone; the process is carried out with a minimum of undissolved gas and avoids the need for mechanical agitation, but the kinetics of the chemical leaching reaction is improved and heat loss via escaping gases is avoided.
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申请公布号 |
US5250273(A) |
申请公布日期 |
1993.10.05 |
申请号 |
US19920933904 |
申请日期 |
1992.08.27 |
申请人 |
CANADIAN LIQUID AIR LTD - AIR LIQUIDE CANADA LTEE |
发明人 |
HORNSEY, DEREK;LEE, ROBERT G. H. |
分类号 |
C08L53/00;C22B3/02;C22B3/04;C22B11/00;C22B15/00;C22B19/20;C22B60/02;(IPC1-7):C01G1/00;C01G7/00;C01G43/00;C01G53/00 |
主分类号 |
C08L53/00 |
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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