发明申请
- 专利标题: METHOD OF RECOVERING GOLD FROM DILUTE GOLD SOLUTION
- 专利标题(中): 从稀土金解决方案回收金的方法
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申请号: US13422505申请日: 2012-03-16
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公开(公告)号: US20120234138A1公开(公告)日: 2012-09-20
- 发明人: Kazuhiro HATANO , Yoshifumi ABE , Eiki ONO , Koji KATSUKAWA
- 申请人: Kazuhiro HATANO , Yoshifumi ABE , Eiki ONO , Koji KATSUKAWA
- 申请人地址: JP Tokyo
- 专利权人: JX NIPPON MINING & METALS CORPORATION
- 当前专利权人: JX NIPPON MINING & METALS CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2011-060960 20110318
- 主分类号: C22B11/00
- IPC分类号: C22B11/00
摘要:
Disclosed is a method of recovering gold from an aqueous solution having a gold concentration of 10 mg/L or lower, using a plurality of extraction apparatuses for bringing the aqueous solution into contact with an extraction agent, arranged to configure a multi-stage extraction process, the method allowing the aqueous solution to continuously flow from the first-stage extraction process to the next-stage extraction process, while recycling the extraction medium used in each stage twice or more times for the extraction process of the same stage, without back extraction and reduction.
公开/授权文献
- US08911533B2 Method of recovering gold from dilute gold solution 公开/授权日:2014-12-16
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