Preparation of catalysts having low volume shrinkage
    3.
    发明授权
    Preparation of catalysts having low volume shrinkage 有权
    低体积收缩率的催化剂的制备

    公开(公告)号:US06919066B2

    公开(公告)日:2005-07-19

    申请号:US10090763

    申请日:2002-03-06

    摘要: Catalysts containing passivated copper and zinc oxide and/or alumina are prepared by (1) precipitating a mixture of catalyst precursor components dissolved or suspended in a diluent with anion-containing precipitating agents, washing and drying to form a solid catalyst precursor in the form of powder or granules, (2) calcining the solid catalyst precursor obtained in stage (1) to an anion content from the precipitating agent of from 0.1 to 2.5% by weight and (3) shaping and, if required, reducing and passivating the calcined catalyst precursor from stage (2) in any desired order to form the catalyst.

    摘要翻译: 含有钝化铜和氧化锌和/或氧化铝的催化剂通过以下步骤制备:(1)将溶解或悬浮在稀释剂中的催化剂前体组分与含阴离子沉淀剂沉淀,洗涤和干燥以形成固体催化剂前体,形式为 粉末或颗粒,(2)将阶段(1)中获得的固体催化剂前体煅烧至沉淀剂的阴离子含量为0.1至2.5重量%,和(3)成形,如果需要,还原和钝化煅烧催化剂 (2)的前体以任何所需的顺序形成催化剂。

    Method for producing platinum metal catalysts
    8.
    发明授权
    Method for producing platinum metal catalysts 失效
    铂金属催化剂的制备方法

    公开(公告)号:US06676919B1

    公开(公告)日:2004-01-13

    申请号:US09926274

    申请日:2001-10-04

    IPC分类号: C01B1501

    摘要: The invention relates to a method for producing catalysts by immersion coating a metallic support with at least one platinum metal. An aqueous medium which comprises at least one platinum metal complex, at least one reduction agent and at least one complexer and which has a pH value of more than 4 is brought into contact with the metallic support in order to deposit the platinum metal, the platinum metal being deposited in the form of discreet, immobilised particles. The invention also relates to the catalysts obtained using this method and to their use for producing hydrogen peroxide and for hydrogenating organic compounds.

    摘要翻译: 本发明涉及通过用至少一种铂金浸渍涂覆金属载体来制备催化剂的方法。 包含至少一种铂金属络合物,至少一种还原剂和至少一种络合器并且pH值大于4的水性介质与金属载体接触以沉积铂金属,铂 金属以谨慎的,固定的颗粒的形式沉积。 本发明还涉及使用该方法获得的催化剂及其用于生产过氧化氢和用于氢化有机化合物的用途。