Catalyst composition for oxidation of butenes
    2.
    发明授权
    Catalyst composition for oxidation of butenes 失效
    用于丁烯氧化的催化剂组合物

    公开(公告)号:US3893945A

    公开(公告)日:1975-07-08

    申请号:US41268073

    申请日:1973-11-05

    摘要: A novel catalyst composition for vapor-phase oxidation of butenes which is active at a temperature in the range from 250* to 450*C and capable of converting n-butenes and iso-butene selectively into 1,3-butadiene and methacrolein, respectively. The said catalyst composition contains tungsten, molybdenum, tellurium, antimony and oxygen, one combination selected from among (a) nickel and cobalt, (b) nickel and iron, (c) nickel, cobalt and bismuth and (d) nickel, iron and bismuth, and at least one member selected from the group consisting of potassium, rubidium and cesium. Phosphorus and/or tin may also be added to the catalyst composition.

    摘要翻译: 一种用于丁烯气相氧化的新型催化剂组合物,其在250℃至450℃的温度范围内有活性,并能够分别将正丁烯和异丁烯转化为1,3-丁二烯和异丁烯醛。 所述催化剂组合物包含钨,钼,碲,锑和氧,选自(a)镍和钴中的一种组合,(b)镍和铁,(c)镍,钴和铋以及(d)镍,铁和 铋以及选自钾,铷和铯中的至少一种。 也可以将磷和/或锡加入到催化剂组合物中。

    Oxidative dehydrogenation catalysts and their method of preparation
    5.
    发明授权
    Oxidative dehydrogenation catalysts and their method of preparation 失效
    氧化脱氢催化剂及其制备方法

    公开(公告)号:US3872027A

    公开(公告)日:1975-03-18

    申请号:US38594873

    申请日:1973-08-06

    摘要: Improved catalysts for oxidative dehydrogenation can be prepared by coprecipitating the metal containing catalysts from a solution of metal ions comprising iron and at least one other metal in the presence of a high molecular weight polyhydric material such as potato starch. The result of having the polyhydric material present is that the precipitate has the form of a gelatinous precipitate of improved processability. The catalyst itself is more active in dehydrogenations and physically stronger than comparable catalyst prepared by conventional methods.

    摘要翻译: 用于氧化脱氢的改进的催化剂可以通过在高分子量多元材料如马铃薯淀粉的存在下,从包含铁和至少一种其它金属的金属离子的溶液中共沉淀含金属的催化剂来制备。 存在多元材料的结果是沉淀物具有改进加工性的凝胶状沉淀物的形式。 催化剂本身在脱氢中更具活性,并且比通过常规方法制备的可比催化剂更强。

    Massive nickel catalysts
    6.
    发明授权
    Massive nickel catalysts 失效
    大量镍催化剂

    公开(公告)号:US3868332A

    公开(公告)日:1975-02-25

    申请号:US27016572

    申请日:1972-07-10

    摘要: An improved process for hydrogenating organic compounds is provided in which a catalyst is employed that has a nickel surface area greater than about 70 m2/g and a sodium content less than 0.2 wt. % based on the total weight of catalyst. Significantly improved activity is obtained with the nickelsililca catalyst of this invention particularly in conversion of benzene to cyclohexane and in reducing oxo aldehydes to alcohols. The catalyst is prepared by coprecipitating nickel and silicate ions in the presence of a porous silica support under conditions of dilution that favor high surface areas and low inclusion of sodium in the catalyst.

    摘要翻译: 提供了一种用于氢化有机化合物的改进方法,其中使用的催化剂的镍表面积大于约70m 2 / g,钠含量小于0.2wt。 基于催化剂总重量的%。 使用本发明的镍 - 硅烷催化剂获得显着改善的活性,特别是在将苯转化为环己烷和将羰基醛还原成醇中。 催化剂是通过在多孔二氧化硅载体的存在下,在有利于高表面积和低含量的钠在催化剂中的稀释条件下共沉淀镍和硅酸盐离子来制备的。

    Method of preparing an improved dehydrogenation catalyst
    7.
    发明授权
    Method of preparing an improved dehydrogenation catalyst 失效
    制备改进的脱氢催化剂的方法

    公开(公告)号:US3849339A

    公开(公告)日:1974-11-19

    申请号:US28891572

    申请日:1972-09-14

    申请人: DOW CHEMICAL CO

    摘要: 1. IN A PROCESS FOR PREPARING A CATALYST FOR THE DEHYDROGENATION OF ALKYL AROMATIC HYDROCARBONS TO VINYL AROMATIC HYDROCARBONS BY PREPARING A PASTE CONSISTING ESSENTIALLY OF FE2O3, CR2O3 OR AN ALKALI METAL CHROMATE OR DICHROMATE DECOMPOSIBLE TO CR2O3, AN ALKALI METAL OXIDE OR AN ALKALI METAL SALT DECOMPOSIBLE TO AN ALKALI METAL OXIDE, A BINDER AND SUFFICIENT WATER TO FORM SAID PASTE, FORMING SAID PASTE INTO PELLETS AND CALCINING SAID PELLETS INTO A FINISHED CATALYST, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS THE FE2O3 COMPONENT A MIXTURE OF HYDRATED FE2O3 AND ANHYDROUS FE2O3 WHEREIN THE HYDRATED FE2O3 IS PRESENT IN THE RANGE OF FROM ABOUT 79 PERCENT TO ABOUT 95 PERCENT OF THE TOTAL WEIGHT OF IRON OXIDES PRESENT.