发明授权
- 专利标题： Process for the manufacture of 1,1,1,2-tetrafluoroethane
- 专利标题（中）： 制备1,1,1,2-四氟乙烷的方法
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申请号： US81930申请日： 1993-06-23
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公开(公告)号： US5334785A公开(公告)日： 1994-08-02
- 发明人: Li Wang , Timothy J. Barder , Mark Kaiser , Russell W. Johnson , Blaise J. Arena
- 申请人： Li Wang , Timothy J. Barder , Mark Kaiser , Russell W. Johnson , Blaise J. Arena
- 申请人地址： NJ Morris Township, Morris County
- 专利权人： Allied-Signal Inc.
- 当前专利权人： Allied-Signal Inc.
- 当前专利权人地址： NJ Morris Township, Morris County
- 主分类号： B01J23/26
- IPC分类号： B01J23/26 ; B01J27/132 ; C07C17/20 ; C07C17/08
摘要：
An improved process for the vapor phase fluorination, especially fluorination of 1,1,1-trifluoro-2-chloroethane (CFC-133a) with HF to produce 1,1,1,2-tetrafluoroethane (HFC-134a) employs a catalyst which preferably consists essentially of boehmite and Cr(OH)Cl.sub.2.2H.sub.2 O, combined and extruded to form particulates and then heated in nitrogen.
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