发明授权
- 专利标题: Hydroformylation process with separation and recycle of active rhodium catalyst
- 专利标题(中): 活性铑催化剂分离和再循环的羰基化方法
-
申请号: US683593申请日: 1996-07-15
-
公开(公告)号: US5773665A公开(公告)日: 1998-06-30
- 发明人: Gary Stephen Silverman , Paul Mercando
- 申请人: Gary Stephen Silverman , Paul Mercando
- 申请人地址: PA Philadelphia
- 专利权人: ELF Atochem North America, Inc.
- 当前专利权人: ELF Atochem North America, Inc.
- 当前专利权人地址: PA Philadelphia
- 主分类号: C07C45/50
- IPC分类号: C07C45/50
摘要:
Active Rhodium catalyst and impurities are separated from a hydroformylation process stream containing both active and inactive organo-rhodium catalyst by binding active catalyst and impurities to an acidic ion exchange resin containing an acidic group. The purified hydroformylation stream can be returned to the hydroformylation reactor. All or a portion of inactive rhodium can be reactivated before recycling purified hydroformylation process stream to the reactor. During regeneration of the resin, a neutral solvent is used first to remove impurities which are discarded, then an acidic solvent is used to remove active organic rhodium catalyst from the resin. Such active catalyst can be rehydrided and returned to the hydroformylation reactor. An ion exchange resin having at least one acid group disposed on a silica backbone and an active organo-rhodium complex from a hydroformylation process stream bound to the resin can be produced.
公开/授权文献
- US5249164A Digital color TV for personal computers 公开/授权日:1993-09-28
信息查询