发明授权
- 专利标题: Recovery of transition metals from aqueous solutions
- 专利标题(中): 从水溶液中回收过渡金属
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申请号: US285464申请日: 1988-12-16
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公开(公告)号: US4880546A公开(公告)日: 1989-11-14
- 发明人: Brian L. Goodall , Paulus A. M. Grotenhuis
- 申请人: Brian L. Goodall , Paulus A. M. Grotenhuis
- 申请人地址: TX Houston
- 专利权人: Shell Oil Company
- 当前专利权人: Shell Oil Company
- 当前专利权人地址: TX Houston
- 优先权: GBX8729446 19871217
- 主分类号: C01G51/00
- IPC分类号: C01G51/00 ; C01G55/00 ; C07C45/50 ; C22B3/38
摘要:
Process for the recovery of a transition metal from an aqueous solution containing a complex of the transition metal with a cyclic phosphite by hydrolyzing the cyclic phosphite, contacting the hydrolysis reaction mixture with a compound forming a water-stable complex with the transition metal, extracting the reaction mixture thus formed with an organic extraction agent for the water-stable complex and separating an organic extract phase containing the transition metal from an aqueous raffinate phase. The process is particularly suitable for the recovery of the Rh or Co from spent hydroformylation catalysts and of Pd from spent carbonylation catalysts.
公开/授权文献
- US5458901A Process for sterilizing meat and poultry 公开/授权日:1995-10-17
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