发明申请
- 专利标题: ION EXCHANGE COBALT RECOVERY
- 专利标题(中): 离子交换钴回收
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申请号: US13024801申请日: 2011-02-10
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公开(公告)号: US20110195000A1公开(公告)日: 2011-08-11
- 发明人: Neil Nebeker , Matthew Rodgers , Charles Marston
- 申请人: Neil Nebeker , Matthew Rodgers , Charles Marston
- 主分类号: C01G51/00
- IPC分类号: C01G51/00
摘要:
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.
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