Isomerization process
    1.
    发明授权
    Isomerization process 失效
    异构化过程

    公开(公告)号:US6080904A

    公开(公告)日:2000-06-27

    申请号:US728395

    申请日:1996-10-09

    IPC分类号: C07C5/27 C07C5/13

    摘要: There is provided an isomerization process using a catalyst comprising a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this catalyst is zirconia, modified with tungstate and platinum. This catalyst is used to isomerize, for example, C.sub.4 to C.sub.8 paraffins. The feed to this paraffin isomerization reaction may, optionally, include cyclic hydrocarbons, such as benzene or cyclohexane, which may undergo ring opening reactions during the course of the isomerization reaction.

    摘要翻译: 提供使用包含氢化/脱氢组分如贵金属的催化剂和包含用VIB族金属的氧阴离子改性的IVB族金属氧化物的酸性固体组分的异构化方法。 该催化剂的实例是用钨酸盐和铂改性的氧化锆。 该催化剂用于异构化例如C 4至C 8链烷烃。 这种链烷烃异构化反应的进料可以任选地包括在异构化反应过程中可能经历开环反应的环烃,例如苯或环己烷。

    Ring opening process
    2.
    发明授权
    Ring opening process 失效
    开环过程

    公开(公告)号:US5345026A

    公开(公告)日:1994-09-06

    申请号:US95882

    申请日:1993-07-22

    IPC分类号: C07C5/13 C07C5/27

    摘要: There is provided a ring opening process using a catalyst comprising a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this catalyst is zirconia, modified with tungstate and platinum. This catalyst is used to convert cyclic hydrocarbons, such as cyclohexane and benzene, to paraffins, especially branched paraffins.

    摘要翻译: 提供了使用包含氢化/脱氢组分如贵金属的催化剂和包含用VIB族金属的氧阴离子改性的IVB族金属氧化物的酸性固体组分的开环方法。 该催化剂的实例是用钨酸盐和铂改性的氧化锆。 该催化剂用于将环状烃如环己烷和苯转化为链烷烃,特别是支链链烷烃。

    Olefin epoxidation catalysts
    8.
    发明授权
    Olefin epoxidation catalysts 有权
    烯烃环氧化催化剂

    公开(公告)号:US6114551A

    公开(公告)日:2000-09-05

    申请号:US412773

    申请日:1999-10-04

    摘要: A method of synthesizing an olefin epoxidation catalyst comprises the step of treating a porous crystalline aluminosilicate 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, such as MCM-22, with a dealuminating agent under conditions effective to remove framework aluminium from the material and produce a dealuminated product. The dealuminated product is then treated with a titanium-containing material under conditions effective to insert titanium into the dealuminated product and produce a titanium-containing, dealuminated catalyst composition.The resultant catalyst is useful in the epoxidation of olefins, such as propylene and cyclohexene, with hydrogen peroxide and organic hydroperoxides.

    摘要翻译: 合成烯烃环氧化催化剂的方法包括以下步骤:处理多晶结晶硅铝酸盐材料,该多晶结晶硅铝酸盐材料具有包含d间距最大值的X射线衍射图,为12.4 +/- 0.25,6.9 +/- 0.15,3.57 +/- 0.07和3.42 +/- 0.07埃,例如MCM-22,在有效从材料中除去骨架铝并产生脱铝产品的条件下用脱铝剂。 然后在有效地将钛插入脱铝产品中并且生产含钛脱铝催化剂组合物的条件下,用含钛材料处理脱铝产品。 得到的催化剂可用于烯烃如丙烯和环己烯与过氧化氢和有机氢过氧化物的环氧化。

    Process for preparing organic carbonates
    9.
    发明授权
    Process for preparing organic carbonates 有权
    制备有机碳酸酯的方法

    公开(公告)号:US6008399A

    公开(公告)日:1999-12-28

    申请号:US266623

    申请日:1999-03-11

    IPC分类号: C07C68/00

    CPC分类号: C07C68/00

    摘要: A process for preparing organic carbonates, such as dimethyl carbonate, without the use of phosgene and with a high yield and selectivity to the desired carbonate, by reacting a formaldehyde-acetal with a source of oxygen, in the presence of a catalyst.

    摘要翻译: 在催化剂存在下,通过使甲醛缩醛与氧源反应,制备有机碳酸酯如碳酸二甲酯的方法,而不使用光气,并且对所需碳酸酯具有高产率和选择性。