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公开(公告)号：EP3121160A4
公开(公告)日：2017-12-06
申请号：EP15765516
申请日：2015-03-19
申请人： DAIKIN IND LTD
发明人： YAMAMOTO YUUKI , NOSE MASATOSHI , NAMIKAWA TAKASHI , NOMURA TAKASHI , ISHIHARA SUMI , YOSHIYAMA ASAKO , KISHIMOTO MASAYUKI , SUYAMA MAKOTO , ADACHI KENJI , KISHIKAWA YOSUKE
IPC分类号： C07C41/01 , C07C41/16 , C07C43/225 , C07C327/26
CPC分类号： C07C327/26 , C07C41/01 , C07C41/16 , C07C43/225
摘要： An object of the present invention is to provide a method for producing a compound having an oxydifluoromethylene skeleton at a high yield by a simple process without using highly toxic starting materials, such as dibromodifluoromethane, while generating almost no difficult-to-separate impurities. A reaction between a thionocarboxylic acid ester (which may be obtained by a reaction between a halogenated thiocarbonyl compound and a specific compound as required) and a compound represented by Formula: XF n (wherein X represents chlorine, bromine, or iodine, and n represents a natural number of 1 to 5) gives a compound having an oxydifluoromethylene skeleton at a high yield. Various groups, such as an aromatic ring group, may also be introduced in high yield by reacting this compound with a boronic acid compound and the like as required.
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公开(公告)号：EP3205638A4
公开(公告)日：2018-03-21
申请号：EP15848491
申请日：2015-10-07
申请人： DAIKIN IND LTD
摘要： The present invention provides a method for producing a fluorine-containing haloolefin compound, said method being able to reduce the generation of overly fluorinated compounds as by-products in the production of the fluorine-containing haloolefin compound and produce the target product of high purity at a high yield. The invention also provides a halogenated hydrocarbon composition. The method for producing a haloolefin compound through the step of fluorinating a starting material containing at least one of a pentachloropropane or a tetrachloropropene in the presence of a fluorinating agent in a reactor, according to the present invention, includes the step of adding hydrogen chloride to the reactor. The composition according to the present invention contains: at least one member selected from the group consisting of a pentachloropropane and a tetrachloropropene; and hydrogen chloride.
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公开(公告)号：EP3199510A4
公开(公告)日：2018-07-18
申请号：EP15848172
申请日：2015-10-08
申请人： DAIKIN IND LTD
发明人： KARUBE DAISUKE , KISHIMOTO MASAYUKI , KOMATSU YUZO
CPC分类号： C07C17/383 , C07B61/00 , C07C17/206 , C07C17/25 , C07C21/18 , C07C19/01
摘要： The present invention provides a method for producing a fluorine-containing haloolefin compound, the method easily inhibiting catalyst deactivation, and the method being capable of inhibiting a decrease in conversion and selectivity in the reaction, even when the reaction is continued for a long period of time. The present invention is a method for producing a fluorine-containing haloolefin compound via a step of fluorinating a C 3 halogenated hydrocarbon. The method comprises a step of removing a stabilizer contained in the C 3 halogenated hydrocarbon before the fluorination step.
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4.发明公开
公开(公告)号：EP3170804A4
公开(公告)日：2018-03-14
申请号：EP15821671
申请日：2015-06-16
申请人： DAIKIN IND LTD
发明人： TAKAKUWA TATSUYA , TAKAHASHI KAZUHIRO , KARUBE DAISUKE , CHAKI TAKEHIRO , KISHIMOTO MASAYUKI , KOMATSU YUZO
IPC分类号： C07C17/20 , C01B7/19 , C07C17/25 , C07C17/383 , C07C21/18
CPC分类号： C07C17/25 , B01D3/143 , B01J23/26 , C01B7/195 , C01B7/196 , C07C17/206 , C07C17/383 , Y02P20/582 , C07C21/18
摘要： This invention provides a method for stably producing 2,3,3,3-tetrafluoropropene for a long period of time wherein unreacted materials are reused after distillation without liquid-liquid separation to suppress catalyst deactivation. The method for producing 2,3,3,3-tetrafluoropropene comprises the step of reacting 1233xf or like chloropropene with hydrogen fluoride in the presence of a catalyst, the step of subjecting the reaction mixture obtained in the above step to distillation to separate the mixture into a first stream comprising 2,3,3,3-tetrafluoropropene as a main component and a second stream comprising unreacted hydrogen fluoride and organic matter containing unreacted chloropropene as main components, and the step of recycling the second stream to the above reaction, the distillation being performed under conditions in which the unreacted hydrogen fluoride and the organic matter containing the unreacted chloropropene do not undergo liquid-liquid separation at a portion of a distillation column from which the second stream is withdrawn.
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