Production of diisopropylbenzene
    8.
    发明授权
    Production of diisopropylbenzene 有权
    生产二异丙基苯

    公开(公告)号:US06933419B2

    公开(公告)日:2005-08-23

    申请号:US09844051

    申请日:2001-04-27

    摘要: A process for the disproportionation of cumene is disclosed which comprises the step of contacting a feed containing cumene, under disproportionation conditions, with a catalyst comprising a molecular sieve, preferably TEA-mordenite. The contacting step disproportionates at least part of the cumene in the feed to provide a disproportionation effluent containing benzene and a mixture of diisopropylbenzene isomers. The effluent is then recovered and contains, prior to any separation step, less 1% of ortho-diisopropylbenzene by weight of the total diisopropylbenzene content of said effluent, less than 1 wt % of n-propylbenzene, less than 5 wt % of triisopropylbenzenes and less than 5 wt % of disproportionation products other than benzene and diisopropylbenzenes.

    摘要翻译: 公开了异丙苯歧化的方法,其包括在歧化条件下使含有枯烯的进料与包含分子筛,优选TEA丝光沸石的催化剂接触的步骤。 接触步骤歧化进料中的异丙基苯的至少一部分,以提供含有苯和二异丙基苯异构体的混合物的歧化流出物。 然后回收流出物,并且在任何分离步骤之前,包含按所述流出物的总二异丙苯含量的重量计小于1重量%的邻二异丙基苯,小于1重量%的正丙基苯,小于5重量%的三异丙基苯和 除苯和二异丙基苯以外的歧化产物少于5重量%。

    Production of diisopropylbenzene by disproportion of cumene in the presence of a TEA-mordenite catalyst
    9.
    发明授权
    Production of diisopropylbenzene by disproportion of cumene in the presence of a TEA-mordenite catalyst 有权
    在TEA丝光沸石催化剂存在下,通过异丙苯的不成比例生产二异丙基苯

    公开(公告)号:US07432405B2

    公开(公告)日:2008-10-07

    申请号:US11179320

    申请日:2005-07-12

    IPC分类号: C07C12/15

    摘要: A process for the disproportionation of cumene is disclosed which comprises the step of contacting a feed containing cumene, under disproportionation conditions, with a catalyst comprising a molecular sieve, preferably TEA-mordenite. The contacting step disproportionates at least part of the cumene in the feed to provide a disproportionation effluent containing benzene and a mixture of diisopropylbenzene isomers. The effluent is then recovered and contains, prior to any separation step, less 1% of ortho-diisopropylbenzene by weight of the total diisopropylbenzene content of said effluent, less than 1 wt % of n-propylbenzene, less than 5 wt % of triisopropylbenzenes and less than 5 wt % of disproportionation products other than benzene and diisopropylbenzenes.

    摘要翻译: 公开了异丙苯歧化的方法,其包括在歧化条件下使含有枯烯的进料与包含分子筛,优选TEA丝光沸石的催化剂接触的步骤。 接触步骤歧化进料中的异丙基苯的至少一部分,以提供含有苯和二异丙基苯异构体的混合物的歧化流出物。 然后回收流出物,并且在任何分离步骤之前,包含按所述流出物的总二异丙苯含量的重量计小于1重量%的邻二异丙基苯,小于1重量%的正丙基苯,小于5重量%的三异丙基苯和 除苯和二异丙基苯以外的歧化产物少于5重量%。