发明名称 |
Process for the manufacture of 1,1,1,2-tetrafluoroethane |
摘要 |
This invention relates to a process for producing 1,1,1,2-tetrafluoroethane (HFC-134a). The process reacts, 1,1,1-trifluoro-2-chloroethane (HCFC-133a) and hydrogen fluoride in a first reactor. The product resulting from the first reaction step is brought to a second reactor together with trichloroethylene and hydrogen fluoride. The second reaction is conducted at a higher temperature than the first reactor. Optionally, HCl is removed prior to removal of the crude HFC-134a product. Unreacted HCFC-133a, trichloroethylene and hydrogen fluoride may be recycled back to the first reactor.
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申请公布号 |
US5654494(A) |
申请公布日期 |
1997.08.05 |
申请号 |
US19950516669 |
申请日期 |
1995.08.18 |
申请人 |
ALLIEDSIGNAL INC. |
发明人 |
TUNG, HSUEH SUNG;CLEMMER, PAUL GENE;CERRI, GUSTAVO;CHIU, YUON;JASKOT, STANLEY MICHAEL;VISO, NEMESIO ROGELIO;SMITH, ADDISON MILES;MCKOWN, JEFFREY WARREN;FRIEDENSON, JAY PHILIP |
分类号 |
B01J23/26;C07B61/00;C07C17/10;C07C17/20;C07C17/21;C07C17/269;C07C17/383;C07C19/08;(IPC1-7):C07C17/08 |
主分类号 |
B01J23/26 |
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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