METHOD OF MANUFACTURING A CATALYST
    1.
    发明申请
    METHOD OF MANUFACTURING A CATALYST 失效
    制备催化剂的方法

    公开(公告)号:US20080167180A1

    公开(公告)日:2008-07-10

    申请号:US11924441

    申请日:2007-10-25

    IPC分类号: B01J23/00 B29C33/44 B29C47/12

    摘要: A method of manufacturing a catalyst, a catalyst precursor, or a catalyst support comprising: (a) mixing a refractory metal oxide or precursor thereof with a liquid to form a paste; (b) adding said paste to an extruder, the extruder having a die plate comprising one or more dies, each die having a plurality of apertures, the outlet of each aperture having a cross sectional area of 6 mm2 or less; (c) extruding the paste through the apertures to form catalyst support extrudates;wherein the inlet of the apertures has a greater cross sectional area than the outlet of said apertures; and wherein for at least one die the combined cross sectional area of all apertures at the inlet relative to the total cross sectional area of the die at the inlet is higher than 50%.

    摘要翻译: 一种制造催化剂,催化剂前体或催化剂载体的方法,包括:(a)将难熔金属氧化物或其前体与液体混合以形成糊状物; (b)将所述糊料加入到挤出机中,所述挤出机具有包括一个或多个模具的模板,每个模具具有多个孔,每个孔的出口的横截面积为6mm 2 / >以下; (c)通过所述孔挤出所述浆料以形成催化剂载体挤出物; 其中所述孔的入口具有比所述孔的出口更大的横截面面积; 并且其中对于至少一个模具,入口处的所有孔的相对于入口处的模具的总横截面面积的组合横截面面积高于50%。

    PROCESS FOR STABILISING A CATALYST
    2.
    发明申请
    PROCESS FOR STABILISING A CATALYST 审中-公开
    稳定催化剂的方法

    公开(公告)号:US20090143491A1

    公开(公告)日:2009-06-04

    申请号:US12208172

    申请日:2008-09-10

    IPC分类号: C07C27/10 B01J31/12

    摘要: The invention provides a process for modifying a Fischer-Tropsch catalyst or catalyst precursor, the process comprising the steps of: contacting a Fischer-Tropsch catalyst or catalyst precursor comprising a titania carrier with a compound having the general formula RaX(4-a)Y wherein a is in the range of 1-3, and wherein the or each R is independently an alkyl or aryl group; Y is silicon or titanium, and, the or each X is independently chosen from the group consisting of hydrogen, an alkoxy group and ZY′BB′B2′, Z being oxygen, —NH, or —NR, wherein R is an alkyl or aryl group comprising 1 to 8 carbon atoms, Y′ being silicon or titanium, and B, B′ and B2 ,independently being hydrogen or an alkyl, aryl, or alkoxy group.In a preferred embodiment the compound RaX(4-a)Y is hexamethyldisilazane.

    摘要翻译: 本发明提供了修饰费 - 托催化剂或催化剂前体的方法,该方法包括以下步骤:使包含二氧化钛载体的费 - 托催化剂或催化剂前体与具有通式RaX(4-a)Y 其中a在1-3的范围内,并且其中所述或每个R独立地是烷基或芳基; Y是硅或钛,并且,各个X独立地选自氢,烷氧基和ZY'BB'B2',Z是氧,-NH或-NR,其中R是烷基或 包含1至8个碳原子的芳基,Y'为硅或钛,B,B'和B 2独立地为氢或烷基,芳基或烷氧基。 在优选的实施方案中,化合物RaX(4-a)Y是六甲基二硅氮烷。