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    Continuous process for the purification of zinc plants electrolytes using copper arsenates
    1.
    发明授权
    Continuous process for the purification of zinc plants electrolytes using copper arsenates 失效
    使用砷酸铜纯化锌工厂电解质的连续工艺

    公开(公告)号：US4252622A

    公开(公告)日：1981-02-24

    申请号：US113975

    申请日：1980-01-21

    申请人： George M. Freeman ,  Kayo Kangas

    发明人： George M. Freeman ,  Kayo Kangas

    IPC分类号： C22B3/46 ,  C22B15/00 ,  C25C1/16

    CPC分类号： C25C1/16 ,  C22B15/0091 ,  C22B23/0469 ,  C22B3/46 ,  Y02P10/234 ,  Y02P10/236

    摘要： Continuous process for the purification of zinc plant electrolyte employing copper arsenate for the removal of cobalt and associated impurities in a four-step treatment comprising:(1) cementation of copper with fine zinc dust,(2) precipitation of the major portion of cobalt by the addition of coarse zinc dust, dilute sulfuric acid and copper arsenate,(3) further addition of coarse zinc dust and dilute acid to precipitate more cobalt and reduce the cobalt level in said electrolyte to about 1.0 ppm, and(4) further addition of coarse zinc dust and dilute acid to reduce the cobalt level in said electrolyte to less than about 0.1 ppm.

    摘要翻译： 用于在四步处理中用于除去钴和相关杂质的用于除去钴和相关杂质的锌工厂电解质的连续工艺，包括：（1）铜与细锌粉的胶结，（2）主要部分的钴通过 添加粗锌粉，稀硫酸和砷酸铜，（3）进一步添加粗锌粉和稀酸，以沉淀更多的钴，并将所述电解质中的钴含量降低至约1.0ppm，和（4）进一步添加 粗锌粉和稀酸将所述电解质中的钴含量降低至小于约0.1ppm。

    Cathode stripping system
    3.
    发明授权
    Cathode stripping system 失效
    阴极剥离系统

    公开(公告)号：US4209379A

    公开(公告)日：1980-06-24

    申请号：US49295

    申请日：1979-06-18

    申请人： George M. Freeman ,  Victor E. Robinson

    发明人： George M. Freeman ,  Victor E. Robinson

    IPC分类号： C25C7/08 ,  C25C7/00

    CPC分类号： C25C7/08

    摘要： A system for stripping electrolytically deposited zinc from relatively small size cathode sheets having a submerged or zinc plating area of approximately one square meter. A frame member is provided for supporting the cathode sheet holding arms which are mounted so as to permit the adjacently spaced sheets to move with respect to one another sufficient to facilitate mechanical stripping of the sheets. A water supply is further provided in the frame for washing the sheets prior to stripping. Once stripped, the sheet is lowered onto a conveyor which removes the zinc sheet from the frame area and stacks it adjacent one end of the frame.

    摘要翻译： 一种用于从具有大约一平方米的浸没或镀锌面积的相对小尺寸的阴极片剥离电解沉积的锌的系统。 设置框架构件用于支撑阴极片夹持臂，其被安装成允许相邻隔开的片相对于彼此移动，足以促进片材的机械剥离。 进一步在框架中提供供水，以便在剥离之前洗涤片材。 一旦被剥离，片材被降下到传送带上，该传送器将锌片从框架区域中移除，并将其堆叠在框架的一端附近。