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    Modified support materials for catalysts
    6.
    发明授权
    Modified support materials for catalysts 失效
    用于催化剂的改性载体材料

    公开(公告)号：US07518014B2

    公开(公告)日：2009-04-14

    申请号：US11285436

    申请日：2005-11-21

    Applicant: Barbara Kimmich ,  Leslie E. Wade ,  Tao Wang ,  André Harmen Sijpkes ,  Roelandus Hendrikus Wilhelmus Moonen

    Inventor： Barbara Kimmich ,  Leslie E. Wade ,  Tao Wang ,  André Harmen Sijpkes ,  Roelandus Hendrikus Wilhelmus Moonen

    IPC: C07C67/00

    CPC classification number: B01J23/682 ,  B01J21/063 ,  B01J21/066 ,  B01J21/08 ,  B01J23/44 ,  B01J23/52 ,  B01J23/58 ,  B01J23/63 ,  B01J23/648 ,  B01J37/0207 ,  B01J37/16 ,  B01J2219/00745 ,  B01J2219/00747 ,  C07C67/055 ,  C40B30/08 ,  C40B40/18 ,  C07C69/01 ,  C07C69/15 ,  C07C69/24

    Abstract: The present invention relates to a method of producing a catalyst or pre-catalyst suitable for assisting in the production of alkenyl alkanoates. The method includes contacting a modifier precursor to a support material to form a modified support material. One or more catalytic component precursors (palladium or gold) may be contacted to the modified support material. The atomic ratio of gold to palladium is preferably in the range of about 0.3 to about 0.90. The support materials with the catalytic component may then be reduced using a reducing environment. A composition for catalyzing the production of an alkenyl alkanoates including a modified support material with palladium and gold is also included within the invention. Catalysts of the present invention may be used to produce alkenyl alkanoates in general and vinyl acetate in particular and are useful to produce low EA/VA ratios while maintaining or improving CO2 selectivity.

    Abstract translation: 本发明涉及一种制备适于辅助生产链烷酸链烯酯的催化剂或预催化剂的方法。 该方法包括使改性剂前体与载体材料接触以形成改性的载体材料。 一种或多种催化组分前体（钯或金）可以与改性的载体材料接触。 金与钯的原子比优选在约0.3至约0.90的范围内。 然后可以使用还原环境来减少具有催化组分的载体材料。 用于催化生产含钯和金的改性载体材料的链烷酸酯的组合物也包括在本发明内。 本发明的催化剂通常可用于制备烯基链烷酸酯，特别是乙酸乙烯酯，并且可用于在保持或提高CO 2选择性的同时产生低的EA / VA比。

    Supported metal interaction catalysts
    9.
    发明授权
    Supported metal interaction catalysts 失效
    负载金属相互作用催化

    公开(公告)号：US4149998A

    公开(公告)日：1979-04-17

    申请号：US771396

    申请日：1977-02-23

    Applicant: Samuel J. Tauster ,  Lawrence L. Murrell ,  Shun C. Fung

    Inventor： Samuel J. Tauster ,  Lawrence L. Murrell ,  Shun C. Fung

    IPC: B01J23/40 ,  B01J23/58 ,  B01J23/648 ,  B01J23/74 ,  B01J23/78 ,  B01J23/84 ,  B01J23/847 ,  B01J23/64

    CPC classification number: B01J23/648 ,  B01J23/40 ,  B01J23/58 ,  B01J23/74 ,  B01J23/78 ,  B01J23/84 ,  B01J23/847

    Abstract: This invention relates to a class of heterogeneous catalysts. More particularly, it pertains to catalysts consisting of group VIII metals dispersed on oxide carriers selected from the group consisting of Ti, V, Nb and Ta and mixtures thereof, and zirconium titanate and BaTiO.sub.3, it having been discovered that these oxide carriers are capable of exerting remarkable effects on the properties of the Group VIII metals so dispersed. Among the strong effects on the properties of supported Group VIII metals which these carriers have been observed to bring about are the suppression of the capacity of the Group VIII metals to chemisorb hydrogen at room temperature, the suppression of the capacity of the Group VIII metals to chemisorb carbon monoxide at room temperature and profound alterations in the activity and/or selectivity of various Group VIII metals in reactions such as the dehydrocyclization of n-heptane and the hydrogenolysis of ethane.These catalyst compositions which exhibit suppression of H.sub.2 and CO chemisorption are prepared by methods known in the art, but differ from the prior art methods in that reduction in a hydrogen or other reducing gas atmosphere at a temperature sufficient to result in a catalyst possessing the desired characteristics is a necessary step.

    Abstract translation: 本发明涉及一类非均相催化剂。 更具体地说，它涉及由分散在选自Ti，V，Nb和Ta的氧化物载体上的Ⅷ族金属及其混合物以及钛酸锆和BaTiO 3组成的催化剂，已经发现这些氧化物载体能够 对分散的第Ⅷ族金属的性能产生显着的影响。 对这些载体被观察到的支持的VIII族金属的性质的强烈影响是抑制第VIII族金属在室温下化学吸附氢的能力，抑制第VIII族金属的容量 在室温下化学吸附一氧化碳，并且在诸如正庚烷的脱氢环化和乙烷的氢解反应的反应中，各种第Ⅷ族金属的活性和/或选择性的深刻改变。

    Reforming with platinum and tantalum or niobium catalyst
    10.
    发明授权
    Reforming with platinum and tantalum or niobium catalyst 失效
    用铂和钽或铌催化剂进行改性

    公开(公告)号：US3799867A

    公开(公告)日：1974-03-26

    申请号：US19544271

    申请日：1971-11-03

    Applicant: BRITISH PETROLEUM CO

    Inventor： CARDWELL J ,  POUT C

    IPC: B01J23/648 ,  C10G35/06 ,  B01J11/12 ,  B01J11/78

    CPC classification number: B01J23/648

    Abstract: A CATALYST OF 0.01-5% PT ON A REFRACTORY SUPPORT, CONTAINS ALSO 0.01-5% WT. OF TA OR NB. THE SUPPORT IS PREFERABLY ALUMINA WHICH MAY CONTAIN HALOGEN. THE TA OR NB MAY BE ADDED AT ANY CONVENIENT STAGE IN THE CATALYST PREPARATION, INCLUDING ADDING IT AS A CHLORIDE OR FLUORIDE DURING THE PREPARATION OF THE SUPPORT. THE PT-TA OR PT-NB CATALYSTS MAY BE USED FOR HYDROCARBON CONVERSION, PARTICULARLY REFORMING ISOMERIZATION, HYDROCRACKING, AND HYDROGENATION.

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