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    MANUFACTURING METHOD FOR HYDROFLUOROOLEFIN OR FLUOROOLEFIN
    1.
    发明申请
    MANUFACTURING METHOD FOR HYDROFLUOROOLEFIN OR FLUOROOLEFIN 有权

    公开(公告)号：US20230014347A1

    公开(公告)日：2023-01-19

    申请号：US17895529

    申请日：2022-08-25

    申请人： DAIKIN INDUSTRIES, LTD. ,  OSAKA UNIVERSITY

    发明人： Yuuta HASUMOTO ,  Tatsuya TAKAKUWA ,  Osamu YAMAMOTO ,  Hideki NAKAYA ,  Masao NOUMI ,  Kazuyuki SATOU ,  Kohei YAMANOI ,  Akihiro OSHIMA

    IPC分类号： C07C17/278

    摘要： This disclosure provides a method for producing a hydrofluoroolefin (HFO) or fluoroolefin (FO), which is a target compound, with high selectivity, without requiring a high temperature and a catalyst in a synthesis process of the target compound. Specifically, the present disclosure provides a method for producing a hydrofluoroolefin or fluoroolefin having two, three, or four carbon atoms, comprising irradiating at least one starting material compound selected from the group consisting of hydrofluorocarbons having one or two carbon atoms and hydrofluoroolefin As having two or three carbon atoms with ionizing radiation and/or an ultraviolet ray having a wavelength of 300 nm or less, with the proviso that when the at least one starting material compound is the hydrofluoroolefin A, the resulting hydrofluoroolefin is different from the hydrofluoroolefin A.

    METHOD FOR PRODUCING FLUOROHALOGENATED HYDROCARBON
    3.
    发明申请
    METHOD FOR PRODUCING FLUOROHALOGENATED HYDROCARBON 有权

    公开(公告)号：US20210130267A1

    公开(公告)日：2021-05-06

    申请号：US16481300

    申请日：2018-01-31

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA

    IPC分类号： C07C17/20 ,  C07C17/383

    摘要： 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.

    METHOD FOR PRODUCING REACTION GAS CONTAINING (E)-1,2-DIFLUOROETHYLENE
    4.
    发明申请
    METHOD FOR PRODUCING REACTION GAS CONTAINING (E)-1,2-DIFLUOROETHYLENE 有权

    公开(公告)号：US20210107850A1

    公开(公告)日：2021-04-15

    申请号：US17130421

    申请日：2020-12-22

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Tatsuya TAKAKUWA ,  Osamu YAMAMOTO ,  Katsuki FUJIWARA ,  Kei KURAMOTO ,  Yuuta HASUMOTO

    IPC分类号： C07C17/278 ,  C09K5/04

    摘要： 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.