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公开(公告)号：US20240018081A1
公开(公告)日：2024-01-18
申请号：US18372344
申请日：2023-09-25
发明人： Atsushi SHIRAI , Yoshichika KUROKI , Yuusuke ETOU , Masayuki KISHIMOTO , Takashi NAMIKAWA , Sumi ISHIHARA , Makoto SUYAMA , Kenji ADACHI , Yosuke KISHIKAWA
IPC分类号： C07C41/22 , C07C231/12 , C07C17/087
CPC分类号： C07C41/22 , C07C231/12 , C07C17/087
摘要： An object of the present disclosure is to provide a method for producing a fluorinated organic compound, the method being capable of removing a sulfur-containing substance to a high degree, or provide a composition containing a fluorinated organic compound with a low content of a sulfur-containing substance. The present disclosure relates to a method for producing a fluorinated organic compound (pf), the method comprising:
[A] reaction step A of fluorinating an organic sulfur compound (ss) with a fluorinating agent to obtain a composition (α) containing a fluorinated organic compound (pf); and
[B] post-treatment step B of reacting the composition (α) with a nucleophile at a temperature of 40° C. or higher.-
公开(公告)号：US20170275220A1
公开(公告)日：2017-09-28
申请号：US15618259
申请日：2017-06-09
发明人： Yuzo KOMATSU , Masayuki KISHIMOTO
CPC分类号： C07C17/25 , C07C17/206 , C07C21/18
摘要： This invention provides a process for producing 2-chloro-3,3,3-trifluoropropene, comprising: reacting anhydrous hydrogen fluoride with at least one chlorine-containing compound selected from the group consisting of chloropropanes and chloropropenes represented by specific formulas in a gas phase in the presence of a chromium atom-containing fluorination catalyst while heating, the reaction being carried out in the presence of molecular chlorine or with a water content in the reaction system of 300 ppm or less. This invention enables suppression of catalyst deterioration and efficient production of 2-chloro-3,3,3-trifluoropropene in a simple and economically advantageous manner on an industrial scale.
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公开(公告)号：US20170217860A1
公开(公告)日：2017-08-03
申请号：US15514618
申请日：2015-10-07
IPC分类号： C07C17/25
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：US20180370877A1
公开(公告)日：2018-12-27
申请号：US16066872
申请日：2016-12-19
发明人： Tatsuya TAKAKUWA , Kazuhiro TAKAHASHI , Daisuke KARUBE , Takehiro CHAKI , Masayuki KISHIMOTO , Yuzo KOMATSU
IPC分类号： C07C17/087 , C07C17/383
摘要： This invention provides a method for stably producing 2,3,3,3-tetrafluoropropene for a long period of time while suppressing catalyst deactivation. This invention provides a method for producing 2,3,3,3-tetrafluoropropene, the method comprising: (d) reacting 2-chloro-3,3,3-trifluoropropene with hydrogen fluoride in the presence of a catalyst; (e) subjecting the reaction mixture obtained in step (d) 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 2-chloro-3,3,3-trifluoropropene as main components; and (f) recycling the second stream separated in step (e) above to the reaction of step (d), wherein the distillation of step (e) is performed under conditions that satisfy the relationship of a specific equation.
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公开(公告)号：US20180237365A1
公开(公告)日：2018-08-23
申请号：US15516504
申请日：2015-10-08
发明人： Daisuke KARUBE , Masayuki KISHIMOTO , Yuzo KOMATSU
IPC分类号： C07C17/20 , C07C17/23 , C07C17/25 , C07C17/383
CPC分类号： C07C17/206 , C07B61/00 , C07C17/23 , C07C17/25 , C07C17/383 , C07C17/42 , C07C19/01 , C07C21/18
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 C3 halogenated hydrocarbon. The method comprises a step of removing a stabilizer contained in the C3 halogenated hydrocarbon before the fluorination step.
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6.发明申请公开(公告)号：US20170217859A1
公开(公告)日：2017-08-03
申请号：US15324827
申请日：2015-06-16
发明人： Tatsuya TAKAKUWA , Kazuhiro TAKAHASHI , Daisuke KARUBE , Takehiro CHAKI , Masayuki KISHIMOTO , Yuzo KOMATSU
CPC分类号： C07C17/25 , B01D3/009 , 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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