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    CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITY
    2.
    发明申请
    CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITY 审中-公开
    CERIA ZIRCONIA氧化铝组合物具有增强的热稳定性

    公开(公告)号：WO2013004456A1

    公开(公告)日：2013-01-10

    申请号：PCT/EP2012/061110

    申请日：2012-06-12

    申请人： TREIBACHER INDUSTRIE AG ,  SCHERMANZ, Karl ,  SAGAR, Amod

    发明人： SCHERMANZ, Karl ,  SAGAR, Amod

    IPC分类号： B01J23/10 ,  B01J37/00 ,  B01J37/03 ,  C01F17/00 ,  C01G25/00 ,  B01J35/10

    CPC分类号： B01J23/10 ,  B01J35/1014 ,  B01J35/1019 ,  B01J37/0018 ,  B01J37/0203 ,  B01J37/03 ,  B01J2523/00 ,  C01G25/02 ,  C01P2002/52 ,  C01P2006/12 ,  C01P2006/13 ,  B01J2523/31 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/3725 ,  B01J2523/48

    摘要： A process for the preparation of a composition comprising A1-, Ce- and Zr-oxides, which process comprises the steps of (a) preparing an aqueous solution of a mixture of metal salts of cerium, zirconium and aluminium, wich aqueous solution optionally comprises one or more salts of the Rare Earth Metals other than cerium, (b) adding to the solution obtained a baseat temperatures from 0°C to 95°C and precipitating the mixed metal salts in the form of hydroxides or oxy-hydroxides, (d) treating the aqueous suspension obtained in step (b) with a surfactant, and (e) isolating the precipitate obtained in step (d) and treating said precipitate at a temperature from 450°C to 1200°C, which process is characterized in that the alumina content is in the range from 35 to 80% by weight, and the surface area (BET) of the composition obtained, measured according to DIN (Deutsche Industrie Norm) 66131 after calcining for 2 hours at 1100°C is from 55 to 80 m 2 /g; or is at least 35 m 2 /g after calcining for 20 hours at 1100°C; and a composition comprising A1-, Ce- and Zr-oxides, characterized in that the aluminium content, calculated as aluminium oxide is in the range from 35 to 80% by weight, and the surface area (BET) of the composition measured according to DIN (Deutsche Industrie Norm) 66131 for 2 hours at 1100°C is from 55 to 80 m 2 /g, and/or is at least 35 m 2 /g after calcining for 20 hours at 1100°C obtainable or obtained according such process.

    摘要翻译： 一种制备包含A1-，Ce-和Zr-氧化物的组合物的方法，该方法包括以下步骤：（a）制备铈，锆和铝的金属盐的混合物的水溶液，水溶液任选包含 一种或多种除铈以外的稀土金属盐，（b）向溶液中加入得到的基础温度为0℃至95℃，并将氢氧化物或氧化氢形式的混合金属盐沉淀，（d 用表面活性剂处理步骤（b）中获得的水性悬浮液，和（e）分离步骤（d）中获得的沉淀物并在450℃至1200℃的温度下处理所述沉淀物，该方法的特征在于 氧化铝含量为35〜80重量％，在1100℃煅烧2小时后，根据DIN（德国工业标准）66131测定的组合物的表面积（BET）为55〜 80 m2 / g; 或在1100℃煅烧20小时后至少为35m 2 / g; 以及包含A1-，Ce-和Zr-氧化物的组合物，其特征在于铝氧化物计算的铝含量在35至80重量％的范围内，并且组合物的表面积（BET）根据 DIN（德国工业标准）66131在1100℃下2小时为55至80m 2 / g，和/或在1100℃下煅烧20小时至少为35m 2 / g，可根据这种方法获得或获得。