NEW METHOD FOR PREPARING PURE, THERMALLY STABLE AND HIGH SURFACE AREA CERIA
    2.
    发明申请
    NEW METHOD FOR PREPARING PURE, THERMALLY STABLE AND HIGH SURFACE AREA CERIA 失效
    用于制备纯,稳定和高表面积的新方法

    公开(公告)号:US20060127294A1

    公开(公告)日:2006-06-15

    申请号:US10905085

    申请日:2004-12-14

    IPC分类号: C01F17/00

    摘要: A method for the preparing pure, thermally stable and high surface area ceria is described, wherein the ceria maintains a surface area of 12 m2/g after calcination at 980° C. in air for 4 hours. In the method, an aqueous solution containing Ce3+, Mg2+, organic acid and organic polymer is prepared and then evaporated to obtain a gel. The gel is calcined to obtain a mixed oxide, and then MgO is leached from the mixed oxide with a solvent to obtain raw ceria. The raw ceria is then washed, filtered and dried to obtain a ceria product.

    摘要翻译: 描述了制备纯的,热稳定的和高表面积的氧化铈的方法,其中二氧化铈在空气中在980℃煅烧4小时后,保持12m 2 / g的表面积。 在该方法中,制备含有Ce 3+,Mg 2+,有机酸和有机聚合物的水溶液,然后蒸发以获得凝胶。 将凝胶煅烧以获得混合氧化物,然后用溶剂将MgO从混合氧化物中浸出以获得生二氧化铈。 然后将原料二氧化铈洗涤,过滤并干燥,得到二氧化铈产品。

    Method for preparing pure, thermally stable and high surface area ceria
    3.
    发明授权
    Method for preparing pure, thermally stable and high surface area ceria 失效
    制备纯,热稳定和高表面积二氧化铈的方法

    公开(公告)号:US07094383B2

    公开(公告)日:2006-08-22

    申请号:US10905085

    申请日:2004-12-14

    IPC分类号: C01F17/00

    摘要: A method for the preparing pure, thermally stable and high surface area ceria is described, wherein the ceria maintains a surface area of 12 m2/g after calcination at 980° C. in air for 4 hours. In the method, an aqueous solution containing Ce3+, Mg2+, organic acid and organic polymer is prepared and then evaporated to obtain a gel. The gel is calcined to obtain a mixed oxide, and then MgO is leached from the mixed oxide with a solvent to obtain raw ceria. The raw ceria is then washed, filtered and dried to obtain a ceria product.

    摘要翻译: 描述了制备纯的,热稳定的和高表面积的氧化铈的方法,其中二氧化铈在空气中在980℃煅烧4小时后,保持12m 2 / g的表面积。 在该方法中,制备含有Ce 3+,Mg 2+,有机酸和有机聚合物的水溶液,然后蒸发以获得凝胶。 将凝胶煅烧以获得混合氧化物,然后用溶剂将MgO从混合氧化物中浸出以获得生二氧化铈。 然后将原料二氧化铈洗涤,过滤并干燥,得到二氧化铈产品。