Precipitation of filterable nickel and/or cobalt sulfides from acid
solutions
    1.
    发明授权
    Precipitation of filterable nickel and/or cobalt sulfides from acid solutions 失效
    从酸溶液中沉淀出可过滤的镍和/或硫化钴

    公开(公告)号:US4073860A

    公开(公告)日:1978-02-14

    申请号:US381861

    申请日:1973-07-23

    摘要: A process for the precipitation of metallic sulfides, e.g., nickel, cobalt or zinc sulfides, from aqueous metal-ion-containing solution comprising passing hydrogen sulfide through the metal-containing solution while the solution is at a temperature of about 75.degree. C. and at a pH of about 2 to about 3 and maintaining said pH during the time of hydrogen sulfide addition by continuous addition of alkali to the solution. The precipitated metal sulfide is characterized by a relatively large particle size by a high settling rate and by ease of filterability.

    摘要翻译: 一种从含有金属离子的溶液中沉淀金属硫化物(例如镍,钴或硫化锌)的方法,包括使硫化氢通过含金属溶液,同时溶液在约75℃的温度下, 在约2至约3的pH下,并且在硫化氢加入期间通过向溶液中连续加入碱来维持所述pH。 沉淀的金属硫化物的特征在于通过高沉降速率和易过滤性而具有相对大的粒度。