Production of diisopropylbenzene by disproportion of cumene in the presence of a TEA-mordenite catalyst
    1.
    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%。

    Production of diisopropylbenzene
    2.
    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 meta-diisopropylbenzene
    10.
    发明授权
    Production of meta-diisopropylbenzene 有权
    间二异丙基苯的生产

    公开(公告)号:US06753453B2

    公开(公告)日:2004-06-22

    申请号:US10299558

    申请日:2002-11-19

    IPC分类号: C07C412

    CPC分类号: C07C6/123 C07C15/02

    摘要: A process for the selective production of meta-diisopropylbenzene is disclosed, wherein the process comprises the steps of contacting cumene under disproportionation conditions and in the absence of added benzene with a catalyst comprising a porous crystalline inorganic oxide material having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom to produce a disproportionation effluent containing benzene and mixture of diisopropylbenzene isomers, and then recovering from said disproportion effluent a meta-diisopropylbenzene boiling range fraction in which the ratio of meta-diisopropylbenzene to ortho-diisopropylbenzene is in excess of 50 and the total amount of meta-diisopropylbenzene co-boilers excluding ortho-diisopropylbenzene is less than 1 wt % of said fraction.

    摘要翻译: 公开了选择性制备间二异丙基苯的方法,其中所述方法包括以下步骤:在歧化条件下和不加入苯的情况下将异丙基苯与包含具有X射线衍射图案的多孔结晶无机氧化物材料的催化剂接触,所述多孔结晶无机氧化物材料包括 在12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃处的d间距最大值,以产生含有苯和二异丙基苯异构体的混合物的歧化流出物,然后从所述不成比例流出物中回收间二异丙基苯沸程馏分,其中 间二异丙基苯与邻二异丙基苯的比例超过50,除邻二异丙基苯以外的间二异丙基苯共沸锅的总量小于所述馏分的1重量%。