METHODS FOR REMOVING ACIDIC IMPURITIES FROM HALOGENATED PROPENES
    4.
    发明申请
    METHODS FOR REMOVING ACIDIC IMPURITIES FROM HALOGENATED PROPENES 审中-公开
    从酸化丙酸中除去酸性污染物的方法

    公开(公告)号:WO2017031046A1

    公开(公告)日:2017-02-23

    申请号:PCT/US2016/047009

    申请日:2016-08-15

    CPC分类号: C07C17/389 C07C21/18

    摘要: This invention pertains to a method for removing acidic impurity from halogenated olefins, especially methods for removing acidic impurity from halogenated propenes, and even more particularly to methods for removing acidic impurity from 1,3,3,3-tetrafluoro-1-propene (HFO-1234ze), 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf), 1-chloro-3,3,3-trifluoro-1-propene (HCFO-1233zd), and 2-chloro-3,3,3-trifluoro-1-propene (HCFO-1233xf). The method is conducted by passing the halogenated olefin stream, in liquid or gas form, through a solid adsorbent bed, which contains at least one acid reactive agent.

    摘要翻译: 本发明涉及从卤代烯烃中除去酸性杂质的方法,特别是从卤化丙烯除去酸性杂质的方法,更具体地说,涉及从1,3,3,3-四氟-1-丙烯(HFO)中除去酸性杂质的方法 -1234ze),2,3,3,3-四氟-1-丙烯(HFO-1234yf),1-氯-3,3,3-三氟-1-丙烯(HCFO-1233zd)和2-氯-3 ,3,3-三氟-1-丙烯(HCFO-1233xf)。 该方法通过使液体或气体形式的卤代烯烃流通过含有至少一种酸反应剂的固体吸附剂床进行。

    METHOD TO REDUCE THE FORMATION OF HIGH BOILING COMPOUNDS DURING THE DEHYDROCHLORINATION OF 1,1,1,3- TETRACHLOROPROPANE
    5.
    发明申请
    METHOD TO REDUCE THE FORMATION OF HIGH BOILING COMPOUNDS DURING THE DEHYDROCHLORINATION OF 1,1,1,3- TETRACHLOROPROPANE 审中-公开
    减少1,1,1,3-四氯丙烯脱氢反应中高沸点化合物形成的方法

    公开(公告)号:WO2014164001A1

    公开(公告)日:2014-10-09

    申请号:PCT/US2014/019794

    申请日:2014-03-03

    IPC分类号: C07C17/42 C07C21/04

    摘要: This invention relates to a method to improve 1,1,3-trichloropropene (HCC-1240za) and/or 3,3,3-trichloropropene (HCC-1240zf) selectivity in the dehydro-chlorination of 1,1,1,3-tetrachloropropane (HCC-250fb). In normal practice, FeCl 3 is used as the catalyst for the dehydrochlorination of HCC-250fb to produce 1,1,3-trichloro-propene and/or 3,3,3-trichloropropene. Here the improvement comprises, using as the starting material, a mixture comprising HCC-250fb and Heavies generated from the reaction of CCl 4 and ethylene to produce HCC-250fb, wherein the Heavies comprise one or more tetrachloropentane isomers. These compounds reduce or eliminate the formation of unwanted high boiling compounds (HBCs).

    摘要翻译: 本发明涉及在1,1,1-三氯丙烷脱氢氯化中改进1,1,3-三氯丙烯(HCC-1240za)和/或3,3,3-三氯丙烯(HCC-1240zf)选择性的方法, 四氯丙烷(HCC-250fb)。 在正常实践中,使用FeCl 3作为HCC-250fb脱氯化氢的催化剂,生成1,1,3-三氯丙烯和/或3,3,3-三氯丙烯。 这里的改进包括使用由CCl4和乙烯的反应产生的HCC-250fb和Heavies的混合物作为原料,以产生HCC-250fb,其中重荷包含一种或多种四氯戊烷异构体。 这些化合物减少或消除不想要的高沸点化合物(HBC)的形成。