发明公开
EP0295885A1 Catalyst and process for 1,1,1,2-tetrafluoroethane by vapor phase reaction
失效
Katalysator和Verfahren zur Herstellung von 1,1,1,2-Tetrafluoräthanin der Dampfphase。
- 专利标题: Catalyst and process for 1,1,1,2-tetrafluoroethane by vapor phase reaction
- 专利标题(中): Katalysator和Verfahren zur Herstellung von 1,1,1,2-Tetrafluoräthanin der Dampfphase。
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申请号: EP88305447.0申请日: 1988-06-15
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公开(公告)号: EP0295885A1公开(公告)日: 1988-12-21
- 发明人: Sobolev, Igor
- 申请人: LaRoche Chemicals Inc
- 申请人地址: 1100 Johnson Ferry Road NE Atlanta Georgia 30342 US
- 专利权人: LaRoche Chemicals Inc
- 当前专利权人: LaRoche Chemicals Inc
- 当前专利权人地址: 1100 Johnson Ferry Road NE Atlanta Georgia 30342 US
- 代理机构: Ackroyd, Robert
- 优先权: US62655 19870616
- 主分类号: C07C19/08
- IPC分类号: C07C19/08 ; C07C17/00 ; B01J27/132
摘要:
A novel catalyst is prepared by codepositing hexavalent chromium oxide and a transition metal compound, preferably titanium trichloride, on alumina, followed by fluorinating the resulting combination. The catalyst is useful in the fluorination of a haloethylene of the formula CX₂=CHX (where the X's are chlorine or bromine or a combination of the two) in the vapor phase to form 1,1,1,2-tetrafluoroethane.
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