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1. 发明申请

WO1996026172A1 PROCESS FOR PRODUCING PENTAFLUOROETHANE AND TETRAFLUOROCHLOROETHANE 审中-公开
标题翻译：四氢呋喃和四氢呋喃的制备方法
公开(公告)号：WO1996026172A1
公开(公告)日：1996-08-29
申请号：PCT/JP1996000401
申请日：1996-02-22
申请人： DAIKIN INDUSTRIES LTD. , YOSHIMURA, Toshikazu , HOMOTO, Yukio , YAMADA, Yasufu , TSUDA, Takehide , SHIBANUMA, Takashi
发明人： DAIKIN INDUSTRIES LTD.
IPC分类号： C07C19/08
CPC分类号： C07C19/12 , C07C17/206 , C07C17/21 , C07C19/08
摘要： A process for producing HFC-125 and/or HCFC-124 from PCE, characterized by comprising the first reaction step of fluorinating PCE in the presence of a catalyst in a liquid phase to form HCFC-123 and/or HCFC-122 and the second reaction step of fluorinating the HCFC-123 and/or HCFC-122 in the presence of a catalyst in a gas phase to form HFC-125 and/or HCFC-124. This process is improved in the yield of objective products, the lifetime of catalyst, and the controllability of reaction temperature.
摘要翻译：一种从PCE生产HFC-125和/或HCFC-124的方法，其特征在于包括在液相中催化剂存在下氟化PCE以形成HCFC-123和/或HCFC-122的第一反应步骤，在催化剂存在下在气相中氟化HCFC-123和/或HCFC-122以形成HFC-125和/或HCFC-124的反应步骤。该方法提高了目标产物的产率，催化剂的使用寿命和反应温度的可控性。

2. 发明申请

WO1994020441A1 PROCESS FOR PRODUCING 1,1,1,2,2-PENTAFLUOROETHANE, PROCESS FOR PRODUCING 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE, AND METHOD OF PURIFYING 1,1,1,2,2-PENTAFLUOROETHANE 审中-公开
标题翻译：生产1,1,1,2,2-二氧杂环戊烯的方法，2,2-二氯-1,1,1-三氟乙烯的制备方法，和1,1,1,2,2-二氟乙醇的纯化方法
公开(公告)号：WO1994020441A1
公开(公告)日：1994-09-15
申请号：PCT/JP1994000348
申请日：1994-03-03
申请人： DAIKIN INDUSTRIES, LTD. , SHIBANUMA, Takashi , HOMOTO, Yukio , KOMATSU, Satoshi , YOSHIMURA, Toshikazu
发明人： DAIKIN INDUSTRIES, LTD.
IPC分类号： C07C19/08
CPC分类号： C07C17/206 , C07C17/21 , C07C17/395 , C07C19/08 , C07C19/12
摘要： A process for producing HFC-125 by dividing the reaction system into a first reaction zone for the vapor-phase reaction of mainly perchloroethylene with HF in the presence of a catalyst and a second reaction zone for the vapor-phase reaction of HCFC-123 (CF3CHC12) and/or HCFC-124 (CF3CFHC1) with HF in the presence of a catalyst, wherein the first reaction zone is kept under a high pressure while the second reaction zone is kept under a low pressure. This process serves to keep a high conversion of perchloroethylene and increase the selectivity of HFC-125 while retaining a catalyst life. A process for purifying HFC-125 by the reaction of a mixture composed of at least 85 vol. % of HFC-125 and at most 15 vol. % of CFC-115 with hydrogen in the presence of a catalyst. This process serves to moderate the reaction conditions, reduce the absolute amount of the by-products formed, and purify HFC-125 efficiently.
摘要翻译：在催化剂存在下将反应体系分成主要是全氯乙烯与HF的气相反应的第一反应区域，以及HCFC-123的气相反应的第二反应区（HFC-125）的制备方法 CF 3 CHCl 2）和/或HCFC-124（CF 3 CFHC 1）与HF在催化剂存在下反应，其中第一反应区保持在高压下，而第二反应区保持在低压下。该方法用于保持全氯乙烯的高转化率，并且在保持催化剂寿命的同时提高HFC-125的选择性。通过由至少85体积％重量的混合物反应来纯化HFC-125的方法。 HFC-125％，最多15体积％。％的CFC-115与氢气在催化剂存在下反应。该方法用于调节反应条件，减少形成的副产物的绝对量，并有效地净化HFC-125。

3. 发明申请

WO1996011176A1 METHOD OF SEPARATING PENTAFLUOROETHANE AND PROCESS FOR PRODUCING PENTAFLUOROETHANE BY UTILIZING SAID METHOD 审中-公开
标题翻译：通过使用化学方法分离二氟甲磺酸的方法和生产二氟乙烯的方法
公开(公告)号：WO1996011176A1
公开(公告)日：1996-04-18
申请号：PCT/JP1995002048
申请日：1995-10-06
申请人： DAIKIN INDUSTRIES LTD. , HOMOTO, Yukio , SHIBANUMA, Takashi , NISHITSUJI, Masanobu
发明人： DAIKIN INDUSTRIES LTD.
IPC分类号： C07C19/08
CPC分类号： C07C17/21 , C07C17/38 , C07C19/08
摘要： A method of separating pentafluoroethane (HFC-125) from the reaction mixture in the production of HFC-125 more efficiently and, in particular, in a more simplified manner, which method comprises the step of passing a gaseous mixture comprising perchloroethylene (PCE), HFC-125, hydrogen chloride (HC1) and hydrogen fluoride (HF) through the first condensation step to prepare the first vapor-phase portion, the step of passing the first portion through the second condensation step to prepare the second vapor-phase portion mainly comprising HFC-125 and HC1 and the second liquid-phase portion comprising the rest of the mixture, the step of leading the second liquid-phase portion to the distillation step to prepare a top fraction mainly comprising HFC-125 and HC1 and a bottom fraction substantially free from HFC-125 and HC1 and comprising the rest of the mixture, and the step of removing HC1 from the second vapor-phase portion and the top fraction to prepare HFC-125. The PCE concentration in the second liquid-phase portion is so controlled as not to cause liquid separation.
摘要翻译：在HFC-125生产中更有效地分离五氟乙烷（HFC-125）的方法，特别是以更简化的方式，该方法包括使包含全氯乙烯（PCE）， HFC-125，氯化氢（HC1）和氟化氢（HF），以制备第一气相部分，使第一部分通过第二冷凝步骤以主要制备第二气相部分的步骤包括HFC-125和HC1，第二液相部分包括混合物的其余部分，将第二液相部分引导至蒸馏步骤以制备主要包含HFC-125和HC1的顶馏分和底部馏分基本上不含HFC-125和HC1并且包含混合物的其余部分，以及从第二气相部分和顶部馏分除去HC1以制备HFC-125的步骤。第二液相部分中的PCE浓度受到如此控制，不会引起液体分离。

4. 发明申请

WO1995015937A1 PROCESS FOR PRODUCING DIFLUOROMETHANE AND 1,1,1,2-TETRAFLUOROETHANE 审中-公开
标题翻译：生产二氟甲磺酸和1,1,1,2-四氢呋喃的方法
公开(公告)号：WO1995015937A1
公开(公告)日：1995-06-15
申请号：PCT/JP1994002070
申请日：1994-12-09
申请人： DAIKIN INDUSTRIES LTD. , HOMOTO, Yukio , TANAKA, Kunitada , SHIBANUMA, Takashi , KOMATSU, Satoshi , KOYAMA, Satoshi
发明人： DAIKIN INDUSTRIES LTD.
IPC分类号： C07C19/08
CPC分类号： C07C19/08 , C07C17/206 , C07C17/21 , C07C19/12
摘要： A process for producing difluoromethane and 1,1,1,2-tetrafluoroethane comprising the steps of: (1) reacting methylene chloride and 1,1,2-trichloroethylene with hydrogen fluoride in a first reactor in a gas phase in the presence of a fluorination catalyst and 1,1,1,2-tetrafluoroethane, and (2) reacting 1,1,1-trifluorochloroethane with hydrogen fluoride in a second reactor in a gas phase in the presence of a fluorination catalyst, and supplying a reaction mixture formed in the second reactor to the first reactor. This process makes it possible to obtain HFC-32 at a high conversion and a high selectivity by fluorinating HCC-30 by using, in common, a large amount (excess) of hydrogen fluoride necessary for producing HFC-134a.
摘要翻译：一种制备二氟甲烷和1,1,1,2-四氟乙烷的方法，包括以下步骤：（1）在第一反应器中，在气相中，在二氯甲烷和1,1,2-三氯乙烯存在下，将二氯甲烷和1,1,2-三氯乙烯与氟化氢反应氟化催化剂和1,1,1,2-四氟乙烷，和（2）在氟化催化剂存在下，在气相中，在第二反应器中使1,1,1-三氟氯乙烷与氟化氢反应，并提供形成的反应混合物在第二反应器中进入第一反应器。该方法通过使用大量（过量）的HFC-134a所需的氟化氢，通过氟化HCC-30，可以以高转化率和高选择性获得HFC-32。

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