Process to recover pure copper during purification of zinc sulfate
solution
    1.
    发明授权
    Process to recover pure copper during purification of zinc sulfate solution 失效
    在纯化硫酸锌溶液期间回收纯铜的工艺

    公开(公告)号:US5200042A

    公开(公告)日:1993-04-06

    申请号:US712537

    申请日:1991-06-10

    IPC分类号: C22B15/00 C25C1/12

    摘要: A process for recovery of copper from a copper residue obtained during purification of a zinc sulfate solution comprises leaching the copper residue in a concentrated sulfuric acid solution in the presence of an oxidant at a temperature of between 60.degree. and 80.degree. C. and separating the solids from the leach solution, electrowinning copper from the leach solution, returning the electrolyte solution to the initial leaching stage to initiate dissolution of the copper residue, and bleeding a portion of the electrolyte solution to reduce the concentration of impurities in the solution.

    摘要翻译: 在硫酸锌溶液纯化期间从铜残余物中回收铜的方法包括在氧化剂存在下,在60至80℃的温度下浸出浓硫酸溶液中的铜残留物,并将 来自浸出溶液的固体,从浸出溶液中电解提取铜,将电解质溶液返回到初始浸出阶段以引发铜残余物的溶解,并使一部分电解质溶液渗出以降低溶液中的杂质浓度。

    Dosing system for loose compressible materials having heterogeneous granulometry and/or density
    2.
    发明申请
    Dosing system for loose compressible materials having heterogeneous granulometry and/or density 审中-公开
    具有不均匀粒度和/或密度的松散可压缩材料的给料系统

    公开(公告)号:US20080130401A1

    公开(公告)日:2008-06-05

    申请号:US11984433

    申请日:2007-11-16

    IPC分类号: B01F15/04 B01F15/02

    摘要: A dosing system for loose compressible material having heterogeneous granulometry and/or density and outputting the material though a main outlet is disclosed. The dosing system comprises a receiving structure for receiving the material to be dosed. A homogenizing system closes the receiving structure outlet and normalizes the material. A first conveying system acts as a base for the receiving structure, and transports the material towards the homogenizing system. A leveling adjustment system downstream of the homogenizing system levels the homogenized material. A second conveying system receives material from the homogenizing system and transports the material beyond the leveling adjustment system towards the main outlet. The homogenizing system, the leveling adjustment system and the second conveying system define a transition volume in which the material travels between the homogenizing system and the second conveying system. A method for dosing such a material is also disclosed.

    摘要翻译: 公开了一种具有不均匀粒度和/或密度并通过主出口输出材料的松散可压缩材料的计量系统。 配料系统包括用于接收待配料的接收结构。 均质系统封闭接收结构出口并使材料标准化。 第一输送系统用作接收结构的基底,并将材料运送到均质系统。 均质系统下游的调平调节系统使均质材料均匀。 第二输送系统从均质系统接收材料并将材料运送到调平调节系统之外朝向主出口。 均化系统,调平调节系统和第二输送系统限定了材料在均质系统和第二输送系统之间行进的过渡体积。 还公开了一种用于计量这种材料的方法。