发明名称 |
Production of pentafluoroethane |
摘要 |
PCT No. PCT/GB95/00766 Sec. 371 Date Sep. 19, 1996 Sec. 102(e) Date Sep. 19, 1996 PCT Filed Apr. 4, 1995 PCT Pub. No. WO95/27688 PCT Pub. Date Oct. 19, 1995There is provided a process for the production of pentafluoroethane which comprises contacting a hydrofluorochloroethane having the formula: C2H1Cl1+xF1+y wherein x and y are each independently 0,1,2 or 3 provided x+y is 3 with hydrogen fluoride in the vapor phase and in the presence of a fluorination catalyst which comprises zinc or a compound of zinc and chromia, chromium fluoride or chromium oxyfluoride.
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申请公布号 |
US5763707(A) |
申请公布日期 |
1998.06.09 |
申请号 |
US19960716369 |
申请日期 |
1996.09.19 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
SCOTT, JOHN DAVID;WATSON, MICHAEL JOHN;EWING, PAUL NICHOLAS |
分类号 |
B01J27/132;C07B61/00;C07C17/20;C07C17/21;C07C17/35;C07C19/08;C07C49/08;(IPC1-7):C07C17/08 |
主分类号 |
B01J27/132 |
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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