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公开(公告)号：WO1997007084A1
公开(公告)日：1997-02-27
申请号：PCT/US1996013229
申请日：1996-08-16
Applicant: ALLIEDSIGNAL INC.
Inventor： ALLIEDSIGNAL INC. , TUNG, Hsueh, Sung , VISO, Nemesio, Rogelio , SMITH, Addison, Miles , MCKOWN, Jeffrey, Warren , FRIEDENSON, Jay, Philip , CLEMMER, Paul, Gene , CERRI, Gustavo , CHIU, Yuon , JASKOT, Stanley, Michael
IPC: C07C19/08
CPC classification number: C07C19/08 , C07C17/10 , C07C17/206 , C07C17/21 , C07C17/269 , C07C17/383
Abstract: 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.
Abstract translation: 本发明涉及一种生产1,1,1,2-四氟乙烷（HFC-134a）的方法。 该方法在第一反应器中使1,1,1-三氟-2-氯乙烷（HCFC-133a）和氟化氢反应。 将由第一反应步骤得到的产物与三氯乙烯和氟化氢一起送至第二反应器。 第二反应在比第一反应器更高的温度下进行。 任选地，在除去粗HFC-134a产物之前除去HCl。 未反应的HCFC-133a，三氯乙烯和氟化氢可循环回第一反应器。
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Patent Agency Ranking
公开(公告)号：EP1226100B1
公开(公告)日：2007-03-07
申请号：EP00976785.6
申请日：2000-11-01
Applicant: AlliedSignal Inc.
Inventor： CERRI, Gustavo , PERINCHERIL, Biju Z. , CHIU, Yuon
CPC classification number: C07C17/21 , C07C17/383 , C07C19/08 , C07C19/12
Abstract: A process for preparing halogenated ethanes, particularly pentafluoroethane, from a mixture produced by the reaction of perchloroethylene, hydrogen fluoride and a recycle stream. The preferred process utilizes phase separation techniques to ensure that less than the azzeotropic amount of HF is included in the product stream, thereby minimizing the hydrogen fluoride that is carried off with the desired products after they are separated from the reaction mixture, and at the same time prevents undesirable byproducts from being recycled to the reaction.
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公开(公告)号：EP0853605A1
公开(公告)日：1998-07-22
申请号：EP96927427.0
申请日：1996-08-16
Applicant: AlliedSignal Inc.
Inventor： TUNG, Hsueh, Sung , VISO, Nemesio, Rogelio , SMITH, Addison, Miles , MCKOWN, Jeffrey, Warren , FRIEDENSON, Jay, Philip , CLEMMER, Paul, Gene , CERRI, Gustavo , CHIU, Yuon , JASKOT, Stanley, Michael
CPC classification number: C07C19/08 , C07C17/10 , C07C17/206 , C07C17/21 , C07C17/269 , C07C17/383
Abstract: 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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公开(公告)号：EP1075456B1
公开(公告)日：2005-08-10
申请号：EP99921708.6
申请日：1999-05-06
Applicant: AlliedSignal Inc.
Inventor： CHIU, Yuon
CPC classification number: C07B39/00 , C07C17/204 , C07C17/206 , C07C17/208 , C07C17/38 , Y02P20/582 , C07C19/08
Abstract: A system and process for producing a fluorinated organic compound, said process comprising (a) reacting an organic compound with a fluorination agent in the presence of a liquid-phase fluorination catalyst to produce a product stream; (b) scrubbing said product stream to remove a substantial portion of said catalyst to form a low-catalyst content product stream; and (c) recovering said fluorinated organic compound from said low-catalyst content stream.
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公开(公告)号：EP1226100A1
公开(公告)日：2002-07-31
申请号：EP00976785.6
申请日：2000-11-01
Applicant: AlliedSignal Inc.
Inventor： CERRI, Gustavo , PERINCHERIL, Biju Z. , CHIU, Yuon
CPC classification number: C07C17/21 , C07C17/383 , C07C19/08 , C07C19/12
Abstract: A process for preparing halogenated ethanes, particularly pentafluoroethane, from a mixture produced by the reaction of perchloroethylene, hydrogen fluoride and a recycle stream. The preferred process utilizes phase separation techniques to ensure that less than the azzeotropic amount of HF is included in the product stream, thereby minimizing the hydrogen fluoride that is carried off with the desired products after they are separated from the reaction mixture, and at the same time prevents undesirable byproducts from being recycled to the reaction.
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公开(公告)号：EP1075456A1
公开(公告)日：2001-02-14
申请号：EP99921708.6
申请日：1999-05-06
Applicant: AlliedSignal Inc.
Inventor： CHIU, Yuon
CPC classification number: C07B39/00 , C07C17/204 , C07C17/206 , C07C17/208 , C07C17/38 , Y02P20/582 , C07C19/08
Abstract: A system and process for producing a fluorinated organic compound, said process comprising (a) reacting an organic compound with a fluorination agent in the presence of a liquid-phase fluorination catalyst to produce a product stream; (b) scrubbing said product stream to remove a substantial portion of said catalyst to form a low-catalyst content product stream; and (c) recovering said fluorinated organic compound from said low-catalyst content stream.
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