Xylene isomerization process to exhaustively convert ethylbenzene and
non-aromatics
    1.
    发明授权
    Xylene isomerization process to exhaustively convert ethylbenzene and non-aromatics 失效
    二甲苯异构化方法彻底转化乙苯和非芳族化合物

    公开(公告)号:US4899011A

    公开(公告)日:1990-02-06

    申请号:US819072

    申请日:1986-01-15

    CPC分类号: C07C5/2724 Y02P20/52

    摘要: A new xylene isomerization process which is capable of converting ethylbenzene and non-aromatic exhaustively while selectively converting xylenes to thermal equilibrium in mixed EB/xylene feeds is proposed. The new process employs a two component catalyst system; each of the components contains a strong hydrogenation metal and a zeolite. The zeolite of each of the two components differs from the other in its selectivity for xylene isomerization and its capacity to deethylete ethylbenzene. That selectivity for xylene isomerization is described by xylene diffusion properties of the zeolite. In one embodiment of the invention, ZSM-5 of greater than 1 micron crystal size and an alpha value of greater than 100 in a first component and ZSM-5 of less than 1 micron crystal size and an alpha of less than 100 in a second catalyst component satisfy the diffusion properties which allow for the exhaustive conversion of ethyl benzene and non-aromatics and the selectivity for xylene isomerization of typical xylene isomerization feeds. In a preferred embodiment, the feed is cascaded over the first component and then the aforementioned second component.

    摘要翻译: 提出了一种新的二甲苯异构化方法,其能够在选择性地将二甲苯转化为混合的EB /二甲苯进料中的热平衡的同时彻底转化乙苯和非芳族。 新工艺采用双组分催化剂体系; 每种组分含有强氢化金属和沸石。 两种组分中的每一种的沸石在二甲苯异构化的选择性及其对乙酸乙酯的能力方面彼此不同。 对二甲苯异构化的选择性由沸石的二甲苯扩散性质描述。 在本发明的一个实施方案中,大于1微米晶体尺寸的ZSM-5和第一组分中的大于100的α值和小于1微米晶体尺寸的ZSM-5和在一秒钟内小于100的α 催化剂组分满足允许乙苯和非芳族化合物的彻底转化以及典型的二甲苯异构化进料的二甲苯异构化的选择性的扩散性质。 在优选实施方式中,进料在第一组分上然后上述第二组分级联。

    Isoparaffin/olefin alkylation over vacancy-containing titanometallate
molecular sieves
    3.
    发明授权
    Isoparaffin/olefin alkylation over vacancy-containing titanometallate molecular sieves 失效
    在含空白金属酸盐分子筛上的异链烷烃/烯烃烷基化

    公开(公告)号:US5498817A

    公开(公告)日:1996-03-12

    申请号:US308898

    申请日:1994-09-20

    IPC分类号: C07C2/58

    CPC分类号: C07C2/58

    摘要: The invention provides a process for alkylating an olefin with an isoparaffin comprising contacting an olefin-containing feed in the presence of a thermally stable composition comprising a non-swellable layered chalcogenide of an element having an atomic number of 4, 5, 12 to 15, 20 to 33, 38 to 51, 56 to 83 and greater than 90, inclusive, said layered metal chalcogenide comprising an interspathic polymeric chalcogenide of an element selected from Groups IB, IIB, IIIA, IIIB, IVA, IVB, VA, VB, VIA, VIIA, and VIIIA of the Periodic Table.

    摘要翻译: 本发明提供了一种用异链烷烃烷基化烯烃的方法,包括使含烯烃的进料在热稳定组合物存在下接触,所述组合物包含原子序数为4,5,12至15的元素的不溶胀的层状硫族化物, 20至33,38至51,56至83且大于90,所述层状金属硫族化物包含选自组IB,IIB,IIIA,IIIB,IVA,IVB,VA,VB,VIA中的元素的间质聚合硫属化物 ,VIIA和VIIIA。

    Method for preparing a pillared layered oxide material
    6.
    发明授权
    Method for preparing a pillared layered oxide material 失效
    制备柱状层状氧化物材料的方法

    公开(公告)号:US5310715A

    公开(公告)日:1994-05-10

    申请号:US880409

    申请日:1992-05-08

    CPC分类号: B01J29/049 C01B39/026

    摘要: There is provided a method for preparing a pillared layered material, designated MCM-36, with a characteristic X-ray diffraction pattern. Upon calcination of the swollen, non-pillared form of this material, the layers collapse and condense upon one another in a somewhat disordered fashion to form a non-swellable material. However, when the swollen layered material is intercalated with polymeric oxide pillars, the layer separation is maintained, even after calcination. A quaternary ammonium silicate, such as tetramethylammonium silicate, is used as a pillaring agent for treating the swollen material.

    摘要翻译: 提供了一种具有特征X射线衍射图谱的制备称为MCM-36的柱状分层材料的方法。 在煅烧该材料的膨胀的非柱形形式时,这些层以有点无序的方式彼此崩溃并冷凝,形成不溶胀的材料。 然而,当膨胀的层状材料插入聚合物氧化物柱时,即使在煅烧之后也保持层分离。 使用硅酸四季铵盐作为处理溶胀材料的支柱剂。