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    • 7. 发明申请
    • ION EXCHANGE COBALT RECOVERY
    • 离子交换钴回收
    • US20110195000A1
    • 2011-08-11
    • US13024801
    • 2011-02-10
    • Neil NebekerMatthew RodgersCharles Marston
    • Neil NebekerMatthew RodgersCharles Marston
    • C01G51/00
    • C01G51/003C01P2006/80C22B3/42C22B23/0484Y02P10/234
    • Method of ion exchange cobalt recovery. Raffinate including cobalt, zinc, copper, nickel and ferric iron is produced. In the raffinate, the pH is raised, the solids are removed and ferric iron is reduced. A copper recovery ion exchange unit is loaded with ion exchange resin selective for copper. Raffinate is fed into the copper recovery ion exchange unit which is regenerated to recover substantially all copper. A cobalt/nickel/zinc recovery ion exchange unit is loaded with another ion exchange resin selective for cobalt. Raffinate is fed into the cobalt/nickel/zinc recovery ion exchange unit, the ion exchange resin holding cobalt, zinc and nickel, and then displaced. Cobalt/zinc eluent is fed into the cobalt/zinc/nickel recovery ion exchange unit to elute the cobalt and zinc in a cobalt/zinc solution, and then displaced. Nickel eluent is fed into the cobalt/zinc/nickel recovery ion exchange unit to elute the nickel.
    • 离子交换钴回收方法。 制备包括钴,锌,铜,镍和三价铁的残液。 在萃余液中,提高pH值,除去固体并减少三价铁。 铜回收离子交换单元装有对铜选择性的离子交换树脂。 萃余液被送入铜回收离子交换单元,其被再生以恢复基本上所有的铜。 钴/镍/锌回收离子交换单元装载有用于钴的另一离子交换树脂。 残液进料到钴/镍/锌回收离子交换单元中,离子交换树脂保持钴,锌和镍,然后置换。 将钴/锌洗脱液进料到钴/锌/镍回收离子交换单元中以洗脱钴/锌溶液中的钴和锌,然后置换。 将镍洗脱剂进料到钴/锌/镍回收离子交换单元中以洗脱镍。