Method for purifying hydrofluorocarbon compound

    公开(公告)号:US09682906B2

    公开(公告)日:2017-06-20

    申请号:US15103747

    申请日:2014-12-17

    申请人: ZEON CORPORATION

    发明人: Yuko Kohinata

    IPC分类号: C07C17/389 C07C19/08

    CPC分类号: C07C17/389 C07C19/08

    摘要: The present invention is a method for purifying a linear saturated fluorohydrocarbon compound comprising bringing a crude linear saturated fluorohydrocarbon compound having four or five carbon atoms into contact with a hydrous metal salt of a synthetic crystalline aluminosilicate that has a carbon dioxide adsorption amount of 50 μmol/g or less and an average pore size of 3 Å to remove water from the crude linear saturated fluorohydrocarbon compound. The present invention makes it possible to reduce or suppress the production of a dehydrofluorinated compound due to a decomposition reaction of the linear saturated fluorohydrocarbon compound, and to remove water efficiently.

    METHOD FOR PURIFYING HYDROFLUOROCARBON COMPOUND
    6.
    发明申请
    METHOD FOR PURIFYING HYDROFLUOROCARBON COMPOUND 有权
    净化氢氟碳化合物的方法

    公开(公告)号:US20160318832A1

    公开(公告)日:2016-11-03

    申请号:US15103747

    申请日:2014-12-17

    申请人: ZEON CORPORATION

    发明人: Yuko Kohinata

    IPC分类号: C07C17/389

    CPC分类号: C07C17/389 C07C19/08

    摘要: The present invention is a method for purifying a linear saturated fluorohydrocarbon compound comprising bringing a crude linear saturated fluorohydrocarbon compound having four or five carbon atoms into contact with a hydrous metal salt of a synthetic crystalline aluminosilicate that has a carbon dioxide adsorption amount of 50 μmol/g or less and an average pore size of 3 Å to remove water from the crude linear saturated fluorohydrocarbon compound. The present invention makes it possible to reduce or suppress the production of a dehydrofluorinated compound due to a decomposition reaction of the linear saturated fluorohydrocarbon compound, and to remove water efficiently

    摘要翻译: 本发明是一种纯化线性饱和氟代烃化合物的方法,包括使具有四个或五个碳原子的粗线性饱和氟代烃化合物与二氧化碳吸附量为50μmol/ L的合成结晶硅铝酸盐的含水金属盐接触, g以下,平均孔径为3以从粗的直链饱和氟代烃化合物中除去水。 本发明可以减少或抑制由于线性饱和氟代烃化合物的分解反应而产生的脱氟化氢化合物,并有效地除去水

    Method for purifying (E)-1-chloro-3,3,3-trifluoropropene
    7.
    发明授权
    Method for purifying (E)-1-chloro-3,3,3-trifluoropropene 有权
    纯化(E)-1-氯-3,3,3-三氟丙烯的方法

    公开(公告)号:US09321708B2

    公开(公告)日:2016-04-26

    申请号:US14375193

    申请日:2013-01-24

    摘要: Provided is a purification method for efficiently reducing an undesirable organic compound or compound in (E)-1-chloro-3,3,3-trifluoropropene and thereby obtaining (E)-1-chloro-3,3,3-trifluoropropene with high purity. The purification method of OF-1233E according to the present invention is characterized by bringing a composition containing OF-1233E and at least one organic compound selected from the group consisting of HCFC-142 isomers, HCFC-244fa, HFC-245fa, OF-1234E, OF-1234Z and OF-1233Z into contact with a solid adsorbent.

    摘要翻译: 提供了一种用于有效还原(E)-1-氯-3,3,3-三氟丙烯中的不期望的有机化合物或化合物的纯化方法,从而得到(E)-1-氯-3,3,3-三氟丙烯, 纯度。 根据本发明的OF-1233E的纯化方法的特征在于,使含有OF-1233E和至少一种选自HCFC-142异构体,HCFC-244fa,HFC-245fa,OF-1234E ,OF-1234Z和OF-1233Z与固体吸附剂接触。

    DICHLOROMETHANE PURIFICATION METHOD AND PROCESS FOR PRODUCING DIFLUOROMETHANE USING THE SAME
    9.
    发明申请
    DICHLOROMETHANE PURIFICATION METHOD AND PROCESS FOR PRODUCING DIFLUOROMETHANE USING THE SAME 审中-公开
    二氯甲烷纯化方法和使用该方法生产二异氰酸酯的方法

    公开(公告)号:US20160060193A1

    公开(公告)日:2016-03-03

    申请号:US14787339

    申请日:2014-05-08

    申请人: SHOWA DENKO K.K.

    摘要: To provide a dichloromethane purification method which can reduce the amount of stabilizers present in dichloromethane and is feasible in industry by a simple operation, a dichloromethane purification method includes bringing dichloromethane containing at least one stabilizer selected from the group consisting of 2-methyl-2-butene, hydroquinone and resorcinol into contact in a liquid phase state with a zeolite having an average pore size of 3 to 11 Å and thereby reducing the amount of the stabilizer.

    摘要翻译: 为了提供可以减少二氯甲烷中存在的稳定剂的量并且通过简单操作在工业上可行的二氯甲烷纯化方法,二氯甲烷纯化方法包括将含有至少一种选自2-甲基-2- 丁烯,氢醌和间苯二酚以平均孔径为3〜11的沸石与液相状态接触,从而减少稳定剂的量。