利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

28 条记录 (耗时 0.046 秒)

    Methods of making alkenyl alkanoates
    7.
    发明申请
    Methods of making alkenyl alkanoates 审中-公开
    制备烯基链烷酸酯的方法

    公开(公告)号：US20050181940A1

    公开(公告)日：2005-08-18

    申请号：US10993507

    申请日：2004-11-19

    申请人： Tao Wang ,  Les Wade ,  Ioan Nicolau ,  Barbara Kimmich ,  Victor Wong ,  Yumin Liu ,  Jun Han ,  Valery Sokolovskii ,  Alfred Hagemeyer ,  David Lowe

    发明人： Tao Wang ,  Les Wade ,  Ioan Nicolau ,  Barbara Kimmich ,  Victor Wong ,  Yumin Liu ,  Jun Han ,  Valery Sokolovskii ,  Alfred Hagemeyer ,  David Lowe

    IPC分类号： B01J23/66

    CPC分类号： B01J23/58 ,  B01J23/464 ,  B01J23/52 ,  B01J33/00 ,  B01J35/002 ,  B01J35/0026 ,  B01J35/008 ,  B01J35/0086 ,  B01J35/026 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1042 ,  B01J37/0201 ,  B01J37/0244 ,  B01J37/16 ,  C07C67/055 ,  C07C69/15

    摘要： The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material. A fourth aspect pertains to a palladium/gold catalyst or pre-catalyst that is produced from substantially chloride free catalytic components.

    摘要翻译： 本发明涉及与催化剂结构有关的至少四个不同方面，制备这些催化剂的方法和使用这些催化剂制备烯基链烷酸酯的方法。 本发明的单独或一起组合地涉及改进烯基链烷酸酯和VA的生产，特别是包括副产物的还原和提高的生产效率。 本发明的第一方面涉及包含铑或其它金属的独特的钯/金催化剂或预催化剂（任选煅烧的）。 第二方面涉及基于层状载体材料的钯/金催化剂或预催化剂，其中一层载体材料基本上不含催化组分。 第三方面涉及在含氧化锆载体材料上的钯/金催化剂或预催化剂。 第四方面涉及由基本上不含氯的催化组分制备的钯/金催化剂或预催化剂。

    Vinyl acetate process utilizing a palladium-gold-copper catalyst
    10.
    发明授权
    Vinyl acetate process utilizing a palladium-gold-copper catalyst 失效
    使用钯 - 金 - 铜催化剂的乙酸乙烯酯方法

    公开(公告)号：US5731457A

    公开(公告)日：1998-03-24

    申请号：US870120

    申请日：1997-06-03

    申请人： Ioan Nicolau ,  Jerry A. Broussard ,  Philip M. Colling

    发明人： Ioan Nicolau ,  Jerry A. Broussard ,  Philip M. Colling

    IPC分类号： B01J23/89 ,  C07B61/00 ,  C07C67/055 ,  C07C69/15 ,  C07C67/05

    CPC分类号： C07C67/055

    摘要： A process is disclosed for the production of vinyl acetate by reaction of ethylene, oxygen and acetic acid as reactants comprising contacting said reactants and a non-halogen containing copper compound with a catalyst comprising a porous support on the porous surfaces of which is deposited catalytically effective amounts of metallic palladium, gold and copper. During the process to prepare vinyl acetate, a stream of alkali metal acetate is preferably passed over the catalyst. The process results in higher vinyl acetate selectivity and productivity due to lower CO.sub.2 selectivity during the life of the catalyst, and/or longer catalyst life.

    摘要翻译： 公开了一种通过乙烯，氧和乙酸的反应生产乙酸乙烯酯的方法，作为反应物，包括将所述反应物和不含卤素的铜化合物与包含多孔载体的催化剂接触，所述催化剂的多孔表面被沉积为催化有效的 金属钯，金和铜的量。 在制备乙酸乙烯酯的过程中，优选通过催化剂上的碱金属乙酸盐流。 该方法由于在催化剂寿命期间较低的CO 2选择性和/或更长的催化剂寿命，导致较高的乙酸乙烯酯选择性和生产率。