发明授权
- 专利标题： Process for preparing 1,1,1,2-tetrafluoroethane
- 专利标题（中）： 制备1,1,1,2-四氟乙烷的方法
-
申请号： US282565申请日： 1994-07-29
-
公开(公告)号： US5475166A公开(公告)日： 1995-12-12
- 发明人: Satoshi Koyama , Yukio Homoto , Naoki Esaka
- 申请人： Satoshi Koyama , Yukio Homoto , Naoki Esaka
- 申请人地址： JPX Osaka
- 专利权人： Daikin Industries, Ltd.
- 当前专利权人： Daikin Industries, Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX2-61811 19900313; JPX2-285596 19901022
- 主分类号： C07C17/20
- IPC分类号： C07C17/20 ; C07C17/21 ; C07C19/08 ; C07C17/00
摘要：
In a process for preparing 1,1,1-trifluorochloroethane by reacting, in a gas phase, trichloroethylene and hydrogen fluoride, when the reactant gases are diluted with a gas which is inactive to the reaction, it is very easy to control a reaction temperature, and when a generated gas from the reaction of 1,1,1-trifluorochloroethane and hydrogen fluoride is used as a diluent gas, generation of 1,1-difluoroethylene is suppressed to a very low level while not influencing the reaction between trichloroethylene and hydrogen fluoride.
公开/授权文献
- US4887641A Modified parallel blade damper for an air handling system 公开/授权日：1989-12-19