Metal oxide and method for producing the same, and catalyst
    10.
    发明授权
    Metal oxide and method for producing the same, and catalyst 有权
    金属氧化物及其制造方法及催化剂

    公开(公告)号:US07214643B2

    公开(公告)日:2007-05-08

    申请号:US10393068

    申请日:2003-03-21

    摘要: A metal oxide which has a large pore volume, and is very useful as a catalyst support. An alkaline material is added to an aqueous solution in which a compound of a metal element for composing an oxide is dissolved, a resultant mixture is co-precipitated, an obtained precipitate is washed, a washed precipitate is stirred in water along with a surfactant, and is calcined. By adding the surfactant after washing, the pH is not changed so that the adding effect of the surfactant is achieved to its upper most limit, thereby obtaining a metal oxide which has a large pore volume and a large mean diameter of secondary particles, and exhibits excellent gas diffusion properties.

    摘要翻译: 具有大孔体积的金属氧化物,作为催化剂载体非常有用。 将碱性物质加入其中溶解用于构成氧化物的金属元素的化合物的水溶液中,将所得混合物共沉淀,将洗涤的沉淀物与表面活性剂一起在水中搅拌, 并煅烧。 通过在洗涤后添加表面活性剂,pH不发生变化,使得表面活性剂的添加效果达到其最高限度,从而获得具有大孔容积和二次颗粒平均直径的金属氧化物,并且显示出 优异的气体扩散性能。