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    Electrowinning of high purity zinc metal from a Mn-containing leach solution preceded by cold electrolytic demanganization
    2.
    发明公开
    Electrowinning of high purity zinc metal from a Mn-containing leach solution preceded by cold electrolytic demanganization 失效
    电解生产从含锰浸出溶液纯锌，以先前demanganizing通过电解冷溶液

    公开(公告)号：EP0885976A1

    公开(公告)日：1998-12-23

    申请号：EP97309299.2

    申请日：1997-11-19

    申请人： Sulfacid S.A.I.F.C.

    发明人： Fussi, Jose Luis ,  Quintero, Oscar ,  Cornaglia, Aldo ,  Morosini, Carlos

    IPC分类号： C22B19/20 ,  C25C1/16 ,  C25B1/00 ,  C25C7/00 ,  C25C7/06

    CPC分类号： C25B1/21 ,  C22B19/26 ,  C25C1/16 ,  C25C7/00 ,  C25C7/06 ,  Y02P10/234

    摘要： Process for obtaining high purity electrolytic metal zinc at high efficiencies from high manganese (more than 0,5%) blends (zinc sulfide) through cold electrolytic demanganization prior to standard electrolysis for the electrowinning of zinc. This previous step allows to simultaneously remove the mass of manganese added by stripping it off the solution as a manganese dioxide. The critical operating conditions of the process provide a tenfold increase in the efficiency of manganese removal, compared to the demanganizing electrolytic cells that are commonly used in the prior art and maintaining this value by using the same anodes for a service period of thirty days in a row, without undue changes or care and at a low operating cost.

    摘要翻译： 处理，用于从高锰（大于0.5％）的共混物（硫化锌）通过对锌的电解提取标准电解前电解冷高demanganization效率得到高纯度的电解锌金属。 此一步骤中允许同时除去锰的通过剥离它从溶液中作为二氧化锰加入的质量。 该方法的关键操作条件提供在锰的去除效率增加了十倍，相比于demanganizing电解池并在现有技术中通常使用和维护通过使用相同的阳极为三十天在一个服务周期此值 行，无需过多的改变或护理和低运行成本。