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1.发明公开公开(公告)号：US20230391696A1
公开(公告)日：2023-12-07
申请号：US18209652
申请日：2023-06-14
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Tatsuya TAKAKUWA , Tomo OTSUKA , Atsushi NOGUCHI , Yuuta HASUMOTO
IPC: C07C17/281
CPC classification number: C07C17/281
Abstract: The present disclosure provides a method for producing a reaction gas containing 1,1,2-trifluoroethane (R-143) and/or (E,Z)-1,2-difluoroethylene (R-1132(E,Z)) using a starting material that is easier to obtain than those used in conventional methods. Specifically, the present disclosure provides a method for producing a reaction gas containing 1,1,2-trifluoroethane (R-143) and/or (E,Z)-1,2-difluoroethylene (R-1132(E,Z)), the method comprising subjecting a starting material gas containing difluoromethane (R-32) to a reaction that involves thermal decomposition at a pressure of 0.6 MPaG or more and 2.0 MPaG or less and a temperature of 600° C. or more and 1000° C. or less, thereby obtaining the reaction gas.
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公开(公告)号：US20210130267A1
公开(公告)日：2021-05-06
申请号：US16481300
申请日：2018-01-31
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Kazuhiro TAKAHASHI , Tatsuya TAKAKUWA
IPC: C07C17/20 , C07C17/383
Abstract: A method for producing a fluorine-containing halogenated hydrocarbon comprising reacting a chlorine-containing compound and hydrogen fluoride in a vapor phase, and a separation step of separating a reaction product containing hydrogen fluoride, hydrogen chloride, and organic matter containing the fluorine-containing halogenated hydrocarbon into multiple components, the separation step comprising: separating the reaction product into a gas phase and a liquid phase, increasing the pressure of the liquid phase and supplying the liquid phase into a distillation column, compressing the gas phase and supplying the gas phase into the distillation column, separating a first stream containing the hydrogen chloride from the top of the distillation column, and separating a second stream containing the organic matter and the hydrogen fluoride from the bottom of the distillation column. The method is for stably obtaining a target compound by preventing hydrogen fluoride contained in the outlet gas from condensing during compression.
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公开(公告)号：US20210107850A1
公开(公告)日：2021-04-15
申请号：US17130421
申请日：2020-12-22
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Tatsuya TAKAKUWA , Osamu YAMAMOTO , Katsuki FUJIWARA , Kei KURAMOTO , Yuuta HASUMOTO
IPC: C07C17/278 , C09K5/04
Abstract: The present disclosure provides a method for producing a reaction gas containing R-1132(E) with selectivity higher than that of known methods. Specifically, the present disclosure provides a method for producing a reaction gas containing (E)-1,2-difluoroethylene (R-1132(E)), (1) the method comprising a step of subjecting a starting material gas containing one or more fluoromethanes selected from the group consisting of chlorodifluoromethane (R-22), difluoromethane (R-32), and fluoromethane (R-41) to a reaction that involves thermal decomposition to obtain the reaction gas, and (2) the starting material gas having a water vapor content of 1 volume % or less.
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公开(公告)号：US20210087446A1
公开(公告)日：2021-03-25
申请号：US16772011
申请日：2018-12-18
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Mitsushi ITANO , Daisuke KARUBE , Yuuki YOTSUMOTO , Kazuhiro TAKAHASHI , Tatsuya TAKAKUWA , Yuzo KOMATSU
IPC: C09K5/04
Abstract: An object is to provide a mixed refrigerant having four types of performance, i.e., a coefficient of performance and a refrigerating capacity that are equivalent to those of R410A, a sufficiently low GWP, and a lower flammability (Class 2L) according to the ASHRAE standard. Provided as a means for a solution is a composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)) and trifluoroethylene (HFO-1123) in a total amount of 99.5 mass % or more based on the entire refrigerant, and the refrigerant comprising 62.5 mass % to 72.5 mass % of HFO-1132(E) based on the entire refrigerant.
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公开(公告)号：US20210079279A1
公开(公告)日：2021-03-18
申请号：US17049432
申请日：2019-04-18
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Kazuhiro TAKAHASHI , Shun OHKUBO , Mitsushi ITANO , Tatsuya TAKAKUWA , Kei KURAMOTO
IPC: C09K5/04
Abstract: The present disclosure provides a composition comprising a refrigerant characterized by having a GWP lower than that of R410A and a COP equivalent to that of R410A. Specifically, the present disclosure provides a composition comprising a refrigerant, the refrigerant comprising CO2 (R744) and at least one compound A selected from the group consisting of trans-1,2-difluoroethylene [(E)-HFO-1132], cis-1,2-difluoroethylene [(Z)-HFO-1132], fluoroethylene (HFO-1141), and 3,3,3-trifluoropropyne (TFP).
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公开(公告)号：US20200333041A1
公开(公告)日：2020-10-22
申请号：US16955222
申请日：2018-12-17
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Mitsushi ITANO , Daisuke KARUBE , Yuuki YOTSUMOTO , Kazuhiro TAKAHASHI , Tatsuya TAKAKUWA , Yuzo KOMATSU , Shun OHKUBO , Tetsushi TSUDA , Takeo ABE , Yumi TODA
IPC: F24F13/30 , F24F1/0059 , F24F1/24 , C09K5/04
Abstract: A refrigeration cycle apparatus that can improve operation efficiency when a refrigerant that contains at least 1,2-difluoroethylene is used is provided. An air conditioning apparatus 1 includes a compressor (21), an outdoor heat exchanger (23), an outdoor expansion valve (24), an indoor heat exchanger (31), and a suction injection pipe (40), and uses a refrigerant that contains at least 1,2-difluoroethylene. The suction injection pipe (40) allows a part of a refrigerant that flows toward the indoor heat exchanger (31) from the outdoor heat exchanger (23) to merge with a low-pressure refrigerant that is sucked into the compressor (21).
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公开(公告)号：US20200332166A1
公开(公告)日：2020-10-22
申请号：US16955565
申请日：2018-12-18
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Eiji KUMAKURA , Takuro YAMADA , Atsushi YOSHIMI , Ikuhiro IWATA , Mitsushi ITANO , Daisuke KARUBE , Yuuki YOTSUMOTO , Kazuhiro TAKAHASHI , Tatsuya TAKAKUWA , Yuzo KOMATSU , Shun OHKUBO , Keisuke OHTSUKA , Yoshinari ASANO , Keiji AOTA , Yuuichi YANAGI , Yoshikazu NAKAO , Takeo ABE , Yumi TODA , Tetsushi TSUDA
Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.
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公开(公告)号：US20170166522A1
公开(公告)日：2017-06-15
申请号：US15373131
申请日：2016-12-08
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Keiichirou WATANABE , Hideki NAKAYA , Motohisa SHINO , Tatsuya TAKAKUWA , Kazunori MORIMOTO
IPC: C07C407/00
CPC classification number: C07C407/00 , B01J19/0093 , C08G65/007 , C08G2650/48
Abstract: The present invention provides a process for producing a perfluoropolyoxyalkylene peroxide compound comprising a step of reacting a perfluoroalkene with oxygen, wherein the reaction of the perfluoroalkene with oxygen is performed in a microreactor.
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9.发明公开
公开(公告)号：US20230150902A1
公开(公告)日：2023-05-18
申请号：US18084715
申请日：2022-12-20
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Atsushi NOGUCHI , Tatsuya TAKAKUWA , Akikazu TABUCHI
IPC: C07C17/383 , C09K5/04
CPC classification number: C07C17/383 , C09K5/045 , C09K2205/126 , C09K2205/32 , C09K2205/22
Abstract: The present disclosure provides a method for producing purified trans-1,2-difluoroethylene (HFO-1132(E)) and/or 1,1,2-trifluoroethylene (HFO-1123), comprising a distillation step of distilling composition 1 comprising difluoromethane (HFC-32) and HFO-1132(E) and/or HFO-1123 to obtain composition 2 in which HFC-32 is reduced from composition 1; and an extractive distillation step of bringing composition 2 into contact with an extraction solvent to obtain a composition comprising HFO-1132(E) and/or HFO-1123, in which HFC-32 is reduced from composition 2, composition 2 being an azeotropic composition or azeotrope-like composition comprising HFC-32 and HFO-1132(E) and/or HFO-1123.
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公开(公告)号：US20220064509A1
公开(公告)日：2022-03-03
申请号：US17502354
申请日：2021-10-15
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Mitsushi ITANO , Daisuke KARUBE , Yuuki YOTSUMOTO , Shun OHKUBO , Tatsuya TAKAKUWA
IPC: C09K5/04
Abstract: An object of the present invention relates to a refrigerant composition that has three types of performance, i.e., a refrigerating capacity that is equivalent to or higher than that of R410A, a sufficiently low GWP, and a lower flammability (Class 2L) according to the ASHRAE standard. As a means for achieving the object, a composition comprising a refrigerant, the refrigerant comprising CO2, trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-l-propene (R1234yf), is provided.
