Method for Preparing Metal Oxide Containing Precious Metals
    2.
    发明申请
    Method for Preparing Metal Oxide Containing Precious Metals 审中-公开
    制备含贵金属的金属氧化物的方法

    公开(公告)号:US20090156395A1

    公开(公告)日:2009-06-18

    申请号:US11991618

    申请日:2006-09-05

    IPC分类号: B01J23/10

    摘要: The present invention relates to a method for preparing a metal oxide containing precious metals, which can be used for a catalyst for purifying automobile exhaust gases and has excellent heat resistance and, more particularly, to a method for preparing a metal oxide containing precious metals including the step of continuously reacting a reaction mixture, including (i) water, (ii) a water-soluble precious metal compound, (iii) a water-soluble cerium compound and (iv) at least one water-soluble metal compound selected from the group consisting of a zirconium compound, a scandium compound, a yttrium compound and a lanthanide metal compound other than a cerium compound, at a temperature from 2000 C to 700° C. and at a pressure from 180 bar to 550 bar, wherein the molar ratio of precious metal to metal other than the precious metal in a reaction product is in the range from 0.001 to 0.1.

    摘要翻译: 本发明涉及一种制备含有贵金属的金属氧化物的方法,其可用于汽车废气净化用催化剂并具有优异的耐热性,更具体地说涉及含有贵金属的金属氧化物的制备方法,包括贵金属 包括(i)水,(ii)水溶性贵金属化合物,(iii)水溶性铈化合物和(iv)至少一种选自以下的水溶性金属化合物的反应混合物的连续反应的步骤: 由锆化合物,钪化合物,钇化合物和铈化合物以外的镧系元素金属化合物组成的组,在2000℃至700℃的温度和180巴至550巴的压力下,其中摩尔 反应产物中的贵金属以外的贵金属与金属的比例在0.001〜0.1的范围内。