Fluidized bed process for producing acrylonitrile and catalytic mixture
containing antimony oxide-silica composite used therein
    11.
    发明授权
    Fluidized bed process for producing acrylonitrile and catalytic mixture containing antimony oxide-silica composite used therein 失效
    用于生产丙烯腈的流化床方法和含有其中使用的氧化锑 - 二氧化硅复合物的催化混合物

    公开(公告)号:US4545943A

    公开(公告)日:1985-10-08

    申请号:US240267

    申请日:1981-03-04

    IPC分类号: B01J23/18 C07C120/14

    摘要: Acrylonitrile is produced by passing a gaseous mixture comprising propylene, molecular oxygen and ammonia upwardly through a fluidized bed comprising particles of a highly-active acrylonitrile catalyst in physical admixture with particles of a composite consisting essentially of antimony oxide and silica. The use of the antimony oxide-silica composite moderates the effect of the highly-active acrylonitrile catalyst reducing its activity sufficiently to enable the use of longer residence times, but without reducing the acrylonitrile selectivity of the catalyst.

    摘要翻译: 通过将包含丙烯,分子氧和氨的气体混合物向上通过包含高活性丙烯腈催化剂颗粒的流化床,与主要由氧化锑和二氧化硅组成的复合材料的物理混合物进行物理混合而制备丙烯腈。 使用氧化锑 - 二氧化硅复合材料缓和了高活性丙烯腈催化剂的作用,足以使其活性降低,从而能够使用较长的停留时间,但不降低催化剂的丙烯腈选择性。

    Polymerizing olefins with a novel catalyst
    13.
    发明授权
    Polymerizing olefins with a novel catalyst 失效
    用新型催化剂聚合烯烃

    公开(公告)号:US4376061A

    公开(公告)日:1983-03-08

    申请号:US227691

    申请日:1981-01-23

    IPC分类号: C08F10/00 C08F4/02 C08F4/64

    CPC分类号: C08F10/00

    摘要: There is provided a solid, particulate, catalytic complex suitable for the stereospecific polymerization of olefins prepared by reducing TiCl.sub.4, contacting the resultant reduced solid with a complexing agent to obtain a treated solid and contacting the treated solid with TiCl.sub.4 in the presence of silica which has been treated with an alkylaluminum halide. When such a catalyst complex is combined with a suitable activator to polymerize olefins, a high degree of stereospecificity is attained, the activity of the catalyst complex is reduced for polymerization control and the efficiency of the titanium employed is enhanced.

    摘要翻译: 提供了适合于通过还原TiCl 4制备的烯烃的立体有择聚合的固体,颗粒状催化络合物,使得到的还原固体与络合剂接触以获得经处理的固体,并在二氧化硅存在下使经处理的固体与TiCl 4接触, 用卤化烷基铝处理。 当这种催化剂络合物与合适的活化剂结合以使烯烃聚合时,可获得高度的立体定向性,催化剂络合物的活性降低,从而聚合控制得到提高,并且提高了所用钛的效率。

    Process for hydrogenating unsaturated compounds
    14.
    发明授权
    Process for hydrogenating unsaturated compounds 失效
    氢化不饱和化合物的方法

    公开(公告)号:US4365095A

    公开(公告)日:1982-12-21

    申请号:US289538

    申请日:1981-08-03

    摘要: A process for hydrogenating an unsaturated organic compound which comprises contacting the same with hydrogen in the presence of a catalyst composed of a support containing (1) (A) a Group IIB metal compound selected from the group consisting of zinc and cadmium compounds, (B) a combination of said zinc and cadmium compounds or (C) a combination of at least one of said Group IIB metal compounds with at least one Group IIA metal compound selected from the group consisting of magnesium, calcium, strontium and barium compounds, (2) alumina and (3) aluminum phosphate and carrying nickel thereon.

    摘要翻译: 一种用于氢化不饱和有机化合物的方法,其包括在催化剂存在下,使其与氢气接触,所述催化剂由含有(1)(A)选自锌和镉化合物的第IIB族金属化合物的载体(B )所述锌和镉化合物的组合或(C)至少一种所述IIB族金属化合物与至少一种选自镁,钙,锶和钡化合物的IIA族金属化合物的组合,(2 )氧化铝和(3)磷酸铝,并在其上携带镍。

    Process for preparing alkyldimethylamines
    15.
    发明授权
    Process for preparing alkyldimethylamines 失效
    制备烷基二甲胺的方法

    公开(公告)号:US4293716A

    公开(公告)日:1981-10-06

    申请号:US108479

    申请日:1979-12-31

    IPC分类号: B01J23/86 C07C85/06

    CPC分类号: B01J23/868

    摘要: A process for preparing alkyldimethylamines which comprises passing through a fixed bed, containing a copper catalyst, optionally chromium oxide, and an oxide of a Group I metal, selected amounts of dimethylamine and an alcohol or mixtures of alcohols.

    摘要翻译: 一种制备烷基二甲胺的方法,其包括通过含有铜催化剂,任选的氧化铬的固定床和第I族金属的氧化物,选择量的二甲胺和醇或醇的混合物。