发明名称 |
Process for the manufacture of 1,1,1,2-tetrafluoroethane |
摘要 |
A process is disclosed for producing HFC-134a which includes reacting certain tetrahaloethane starting materials (e.g., 2-chloro-1,1,1-trifluoroethane) with HF in the gaseous phase at an elevated temperature in the presence of certain supported metal catalysts containing effective amounts of zinc. A catalyst of metal fluoride on a fluorinated alumina support having an atomic ratio of F to Al of at least 2.7:1 and containing beta -aluminum fluoride, is employed.
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申请公布号 |
US5321170(A) |
申请公布日期 |
1994.06.14 |
申请号 |
US19910672871 |
申请日期 |
1991.03.20 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
CORBIN, DAVID R.;RAO, V. N. MALLIKARJUNA |
分类号 |
B01J27/06;B01J23/06;B01J23/80;B01J27/12;B01J27/125;C07B61/00;C07C17/20;C07C19/08;(IPC1-7):C07C17/08 |
主分类号 |
B01J27/06 |
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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