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    • 1. 发明授权
    • Electrochemical processing
    • 电化学加工
    • US06726828B2
    • 2004-04-27
    • US10024490
    • 2001-12-21
    • Andrew Derek TurnerChristopher Peter Jones
    • Andrew Derek TurnerChristopher Peter Jones
    • C25B100
    • C22B13/04C22B3/165C25B1/00C25B1/21C25B1/30Y02P10/234
    • Using a solution mining procedure, an ore (10) is treated with a solution of acetic acid and hydrogen peroxide so as to form a leachate containing lead ions. Lead ions (and other metal ions such as zinc and manganese) are stripped (22, 24, 26) by solvent extraction from the leachate to form separate aqueous solutions. The aqueous solution containing lead ions is treated electrochemically in the anodic compartment of a separated electrochemical cell (42) to form a precipitate of lead oxide. Manganese dioxide can be produced similarly (72). A precipitate of zinc hydroxide can be formed in the cathode compartment of a separated electrochemical cell (56). In the cells (42, 72) extracting lead ions and manganese ions, the cathode compartment is used to generate hydrogen peroxide (for use in making the leachant), either directly or indirectly.
    • 使用溶液开采程序,用乙酸和过氧化氢溶液处理矿石(10),以形成含铅离子的渗滤液。 铅离子(和其他金属离子如锌和锰)通过溶剂萃取从渗滤液中剥离(22,24,26)以形成分离的水溶液。 含有铅离子的水溶液在分离的电化学电池(42)的阳极室中进行电化学处理,以形成氧化铅沉淀物。 二氧化锰可以类似地生产(72)。 可以在分离的电化学电池(56)的阴极室中形成氢氧化锌的沉淀。 在提取铅离子和锰离子的电池(42,72)中,阴极室用于直接或间接地产生过氧化氢(用于制造浸出液)。