发明授权
US4827055A Process for preparing vinylidene fluoride by the direct fluorination of
vinylidene chloride
失效
通过偏二氯乙烯的直接氟化制备偏二氟乙烯的方法
- 专利标题： Process for preparing vinylidene fluoride by the direct fluorination of vinylidene chloride
- 专利标题（中）： 通过偏二氯乙烯的直接氟化制备偏二氟乙烯的方法
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申请号： US167665申请日： 1988-03-07
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公开(公告)号： US4827055A公开(公告)日： 1989-05-02
- 发明人: Maher Y. Elsheikh
- 申请人： Maher Y. Elsheikh
- 申请人地址： PA Philadelphia
- 专利权人： Pennwalt Corporation
- 当前专利权人： Pennwalt Corporation
- 当前专利权人地址： PA Philadelphia
- 主分类号： B01J23/32
- IPC分类号： B01J23/32 ; B01J27/12 ; B01J27/125 ; C07B61/00 ; C07C17/00 ; C07C17/20 ; C07C21/18 ; C07C67/00
摘要：
Vinylidene fluoride is produced by the gaseous phase reaction of vinylidene chloride with hydrofluoric acid at a temperature of from about 400.degree. to 700.degree. C. in the presence of oxygen and a catalyst containing AlF.sub.3 either alone or in combination with a transition metal fluoride selected from iron, cobalt, chromium, nickel, zinc and combinations thereof.
公开/授权文献
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