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    Cerium oxide powder and cerium oxide dispersion
    1.
    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。

    SURFACE-MODIFIED SUPERPARAMAGNETIC OXIDIC PARTICLES
    10.
    发明申请
    SURFACE-MODIFIED SUPERPARAMAGNETIC OXIDIC PARTICLES 审中-公开
    表面改性超级磁性氧化颗粒

    公开(公告)号：US20110147641A1

    公开(公告)日：2011-06-23

    申请号：US12922808

    申请日：2009-03-30

    申请人： Juergen Meyer ,  Markus Pridoehl ,  Guido Zimmermann ,  Michael Kroell ,  Stipan Katusic

    发明人： Juergen Meyer ,  Markus Pridoehl ,  Guido Zimmermann ,  Michael Kroell ,  Stipan Katusic

    IPC分类号： H01F1/00 ,  B05D5/12

    CPC分类号： C09C1/22 ,  B82Y25/00 ,  C01P2002/52 ,  C01P2002/70 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/42 ,  C01P2006/80 ,  C09C1/28 ,  C09C3/12 ,  H01F1/0045 ,  H01F1/37

    摘要： Surface-modified superparamagnetic oxidic particles, characterized by the following physicochemical characteristics: BET surface area 20 to 75 m2/g; Carbon content 0.5 to 6.0% by weight; Tamped density 150 to 500 g/l; Chlorine content 50 to 1000 ppm; Drying loss 0.1 to 4.0% by weight are prepared by contacting the oxides with the surface modifier either by spraying or vapour deposition and then heat-treating them. The surface-modified oxidic particles can be used as a filler in adhesives. Further fields of application are use for data carriers, as a contrast agent in imaging processes, for biochemical separation and analysis processes, for medical applications, as an abrasive, as a catalyst or as a catalyst support, as a thickener, for thermal insulation, as a dispersing assistant, as a flow assistant and in ferrofluids.

    摘要翻译： 表面改性的超顺磁性氧化物颗粒，其特征在于以下物理化学特性：BET表面积为20〜75m2 / g; 碳含量为0.5〜6.0重量％ 捣实密度150〜500g / l; 氯含量50〜1000ppm; 通过喷雾或气相沉积使氧化物与表面改性剂接触，然后对其进行热处理，制备0.1至4.0重量％的干燥失重。 表面改性的氧化物颗粒可用作粘合剂中的填料。 其它应用领域可用于数据载体，成像过程中的造影剂，生物化学分离和分析过程，医疗应用，研磨剂，催化剂或作为增稠剂的催化剂载体，用于保温， 作为分散助手，作为流动助手和铁磁流体。