发明名称 |
A process for the production of a hydrofluorocarbon and use of a catalyst therefor |
摘要 |
A process for the production of R227ea by the liquid phase catalytic fluorination of hexafluoropropene in which the catalyst comprises a Lewis acid transition metal fluoride, for example tantalum pentafluoride and niobium pentafluoride, is disclosed. The catalyst provides an alternative to antimony pentafluoride as a liquid phase fluorination catalyst thus avoiding the formation of HSbF6 and provides excellent selectivity. A catalyst precursor comprising a Lewis acid transition metal halide is also disclosed. |
申请公布号 |
ZA9803865(B) |
申请公布日期 |
1998.11.09 |
申请号 |
ZA19980003865 |
申请日期 |
1998.05.07 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC. |
发明人 |
PAUL NICHOLAS EWING;JOHN CHARLES MCCARTHY |
分类号 |
B01J27/12;C07C17/087 |
主分类号 |
B01J27/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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