Recovery of nickel and cobalt carbonates from ammoniacal leach solutions
    9.
    发明授权
    Recovery of nickel and cobalt carbonates from ammoniacal leach solutions 失效
    从氨浸提液回收镍和碳酸钴

    公开(公告)号:US4002719A

    公开(公告)日:1977-01-11

    申请号:US615801

    申请日:1975-09-22

    申请人: Utah Tsao

    发明人: Utah Tsao

    IPC分类号: C01G51/06 C01G53/06 C22B23/00

    摘要: An ammonium carbonate leach solution containing dissolved nickel and/or cobalt values is sprayed into a flash chamber to flash a portion of the ammonia therefrom, resulting in the production of a fine precipitate of nickel and/or cobalt carbonate. The solution is introduced into a stripping tower wherein remaining ammonia is stripped therefrom to precipitate further nickel and/or cobalt carbonate on the previously precipitated carbonate, which function as nuclei to reduce deposition in the column.

    摘要翻译: 将含有溶解的镍和/或钴值的碳酸铵浸出溶液喷射到闪蒸室中以从其中闪蒸一部分氨,导致产生镍和/或碳酸钴的细沉淀物。 将溶液引入汽提塔,其中从其中除去剩余的氨,以沉淀在先前沉淀的碳酸盐上的进一步的镍和/或碳酸钴,其作为核以减少柱中的沉积。