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    Separation of cobalt from nickel and cobalt bearing ammoniacal solutions
    51.
    发明授权
    Separation of cobalt from nickel and cobalt bearing ammoniacal solutions 失效
    从镍和钴轴承中分离钴的方法

    公开(公告)号：US3716618A

    公开(公告)日：1973-02-13

    申请号：US3716618D

    申请日：1971-03-24

    申请人： SHERRITT GORDON MINES LTD

    发明人： WEIR D ,  KOFLUK R

    IPC分类号： C01G51/00 ,  C01G53/11 ,  C01G53/00

    CPC分类号： C01G51/30 ,  C01G53/11

    摘要： A process for extracting a nickel product having a predetermined nickel to cobalt ratio and a mixed nickel-cobalt sulphide product having a low nickel to cobalt ratio from reduced nickel and cobalt bearing lateritic and garnieritic ores. The reduced ores are leached in one or more stages under oxidizing conditions in an aqueous ammoniacal ammonium carbonate solution. Solution from the leaching operation is treated in a multi-stage cobalt removal operation in which excess sulphidizing agent is added to one stage to effect extraction of a large quantity of cobalt from solution as a mixed nickel-cobalt sulphide precipitate. The amount of sulphidizing agent added to another stage is restricted to produce a mixed nickel-cobalt sulphide precipitate with a low Ni:Co weight ratio. The mixed sulphide precipitate is removed from each stage solution and a portion is recycled to the solution from which it was removed.

    摘要翻译： 一种提取具有预定镍 - 钴比例的镍产品的方法以及由还原的镍和含钴红土和锰矿石矿石组成的镍 - 钴比低的混合镍 - 钴硫化物产物。 在硝酸铵水溶液中，在氧化条件下，一个或多个阶段将还原的矿石浸出。 来自浸出操作的溶液在多级钴去除操作中进行处理，其中将过量的硫化剂加入到一个阶段以从溶液中提取大量的钴作为混合的镍 - 钴硫化物沉淀物。 添加到另一阶段的硫化剂的量被限制以产生具有低Ni:Co重量比的混合的镍 - 钴硫化物沉淀物。 将混合的硫化物沉淀物从每个阶段溶液中除去，并将一部分再循环至其被除去的溶液中。