发明授权
- 专利标题: Process for the preparation of perfluorinated carbonyl fluorides
- 专利标题(中): 制备全氟化羰基氟化物的方法
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申请号: US266919申请日: 1988-11-03
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公开(公告)号: US4874557A公开(公告)日: 1989-10-17
- 发明人: Alfred Kruse , Gunter Siegemund , Werner Schwertfeger
- 申请人: Alfred Kruse , Gunter Siegemund , Werner Schwertfeger
- 申请人地址: DEX Frankfurt am Main
- 专利权人: Hoechst Aktiengesellschaft
- 当前专利权人: Hoechst Aktiengesellschaft
- 当前专利权人地址: DEX Frankfurt am Main
- 优先权: DEX3737920 19871107
- 主分类号: B01J31/26
- IPC分类号: B01J31/26 ; C07B61/00 ; C07C51/00 ; C07C51/58 ; C07C59/135 ; C07C67/00
摘要:
The invention relates to a process for the preparation of perfluorinated carbonyl fluorides of the formula ##STR1## by oligomerization of hexafluoropropene oxide in the presence of a catalyst. The catalyst comprises a mixture of an alkali metal fluoride, a carboxylic acid dinitrile and a polyethylene glycol dimethyl ether.
公开/授权文献
- US5535286A Error detection in seismic data 公开/授权日:1996-07-09
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