发明名称 |
KONTROLL AV KISELDIOXIDSKALNING I SAMBAND MED SYRAEXTRAKTION AV LATERITISKA MALMER |
摘要 |
<p>A method of control of silica scaling during acid leaching of lateritic ore. …<??>In the recovery of nickel from nickeliferous oxide ores by acid leaching at elevated temperature and pressure silica, dissolved in the leach slurry, gives silica scales on flash-pot surfaces during the multi-stage flashing of the slurries from the pressure leach circuit. This method greatly inhibits silica scales formation at an intermediate-temperature flash stage by recycling a portion of the slurry to this stage, in sufficient amount to effect a dilution in soluble silica concentrations and decrease the supersaturation of the slurry flashed from a higher temperature fed to the intermediate temperature no flash stage and continuing this process.</p> |
申请公布号 |
FI830590(A0) |
申请公布日期 |
1983.02.23 |
申请号 |
FI19830000590 |
申请日期 |
1983.02.23 |
申请人 |
COMPAGNIE FRANCAISE D'ENTREPRISES MINIERES METALLURGIQUES ET D'INVESTISSEMSNTS ŸCOFREMMIŸ |
发明人 |
ILER, RALPH K;QUENEAU, PAUL B;COOPERRINDER, MARK W |
分类号 |
C22B23/00;C01G51/10;C01G53/10;C01G53/11;C22B;C22B3/00;C23F14/00;(IPC1-7):C22B/ |
主分类号 |
C22B23/00 |
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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