发明授权
- 专利标题: Method of making 1,1,1-trifluoroethane
- 专利标题(中): 制备1,1,1-三氟乙烷的方法
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申请号: US11054029申请日: 2005-02-09
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公开(公告)号: US07071368B1公开(公告)日: 2006-07-04
- 发明人: Daniel C. Merkel , Hsueh Sung Tung , Robert C. Johnson
- 申请人: Daniel C. Merkel , Hsueh Sung Tung , Robert C. Johnson
- 申请人地址: US NJ Morristown
- 专利权人: Honeywell International Inc.
- 当前专利权人: Honeywell International Inc.
- 当前专利权人地址: US NJ Morristown
- 代理商 Colleen D. Szuch
- 主分类号: C07C17/00
- IPC分类号: C07C17/00 ; C07C19/00 ; C07C21/00 ; C07C23/00 ; C07C25/00
摘要:
A process for producing 1,1,1-trifluoroethane (HFC-143a) which process comprises reacting hydrogen fluoride with vinylidene chloride along with one or more of 1,1,-dichloro-1-fluoroethane (HCFC-141b), 1-chloro-1,1-difluoroethane (HCFC-142b) and 1,1,1-trichloroethane (HCC-140a) in the presence of pentavalent antimony as a fluorination catalyst under conditions to produce 1,1,1-trifluoroethane (HFC-143a), generally in yields of 90% or more.
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