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    Cerium oxide powder and cerium oxide dispersion
    9.
    发明申请
    Cerium oxide powder and cerium oxide dispersion 失效
    氧化铈粉末和氧化铈分散体

    公开(公告)号：US20070048205A1

    公开(公告)日：2007-03-01

    申请号：US11502568

    申请日：2006-08-11

    申请人： Stipan Katusic ,  Michael Kroell ,  Michael Kraemer ,  Stefan Heberer ,  Edwin Staab ,  Guenther Michael

    发明人： Stipan Katusic ,  Michael Kroell ,  Michael Kraemer ,  Stefan Heberer ,  Edwin Staab ,  Guenther Michael

    IPC分类号： C01F17/00

    CPC分类号： C01F17/0043 ,  B82Y30/00 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/22 ,  C01P2006/80 ,  C01P2006/90 ,  Y10T428/2933 ,  Y10T428/2982

    摘要： Cerium oxide powder having carbonate groups and made of crystalline primary particles containing cerium oxide and having carbonate groups on the surface and in a region close to the surface, and having a BET surface area of from 25 to 150 m2/g, a mean diameter of from 5 to 50 nm, a carbonate concentration in the region close to the surface decreasing inwardly from the surface, a carbon content due to carbonate groups on the surface of from 5 to 50% by area, a carbon content due to carbonate groups at a depth of about 5 nm in a region close to the surface of from 0 to 30% by area, a content of cerium oxide calculated as CeO2 and based on the powder of at least 99.5% by weight and a content of organic and inorganic carbon of from 0.01 to 0.3% by weight. A dispersion containing this powder.

    摘要翻译： 具有碳酸酯基的氧化铈粉末，其表面和靠近表面的区域中含有氧化铈并具有碳酸酯基团的结晶一次粒子，BET表面积为25〜150μm2 / > g，平均直径为5〜50nm，表面附近从表面向内减少的区域中的碳酸盐浓度，表面的碳酸酯基的碳含量为5〜50面积％， 在接近表面0〜30％的面积的范围内，由于碳酸酯基团在约5nm的深度引起的碳含量，以CeO 2计算的氧化铈含量和基于粉末 至少99.5重量％，有机和无机碳的含量为0.01至0.3重量％。 含有该粉末的分散体。