发明授权
- 专利标题: Process for the separation of platinum group metals
- 专利标题(中): 铂族金属分离方法
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申请号: US750738申请日: 1976-12-15
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公开(公告)号: US4107261A公开(公告)日: 1978-08-15
- 发明人: John Baltz , Enzo Coltrinari
- 申请人: John Baltz , Enzo Coltrinari
- 申请人地址: CA Santa Fe Springs
- 专利权人: PGP Industries Inc.
- 当前专利权人: PGP Industries Inc.
- 当前专利权人地址: CA Santa Fe Springs
- 主分类号: C01G55/00
- IPC分类号: C01G55/00 ; C22B3/28
摘要:
Disclosed herein is a process for the separation and recovery of Rhodium values from aqueous mineral acid solutions also containing Iridium and/or Ruthenium which comprises contacting the metal bearing aqueous solution with a water immiscible organic solvent containing an organically substituted quaternary amine salt to extract Iridium and Ruthenium into the solvent phase leaving Rhodium in the aqueous raffinate. The loaded organic phase is stripped of Iridium and Ruthenium in two sequential steps by contacting it first with an alkaline solution then redissolving the resulting precipitate in an acidified reducing solution.
公开/授权文献
- US5869103A Polymer microparticles for drug delivery 公开/授权日:1999-02-09
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