发明名称 |
A PROCESS FOR THE RECOVERY OF VALUABLE METALS FROM THE ASHES OF NORMAL AND COMPLEX PYRITES |
摘要 |
<p>A process for the recovery of valuable metals from the ashes of normal and complex pyrites is described, comprising the steps of grinding the ashes of sulphide containing ores to a size less than 90 microns; preparing from the ashes a slurry with the recycled liquids; treating the slurry, at room temperature, with a leaching agent to dissolve the sulphides and the oxides of the valuable metals; separating the liquid phase from the ashes and washing the latter free from any solution of compounds of the valuable metals; purifying the solutions of the valuable metals by adding bases; cementing the solutions, whether purified or not, to produce a shell of valuable metals and a liquid devoid of valuable metals.</p> |
申请公布号 |
EP0134435(B1) |
申请公布日期 |
1988.10.19 |
申请号 |
EP19840106957 |
申请日期 |
1984.06.18 |
申请人 |
ESPANOLA MINAS THARSIS CO |
发明人 |
NUNEZ ALVAREZ, CARLOS;VINALS OLIA, JUAN |
分类号 |
C22B3/00;C22B7/02;C22B7/04;(IPC1-7):C22B3/00 |
主分类号 |
C22B3/00 |
代理机构 |
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代理人 |
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地址 |
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