CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITY
    1.
    发明申请
    CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITY 有权
    CERIA ZIRCONIA氧化铝组合物具有增强的热稳定性

    公开(公告)号:US20140141967A1

    公开(公告)日:2014-05-22

    申请号:US14128067

    申请日:2012-06-12

    Abstract: A process for the preparation of a composition comprising Al-, 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, which aqueous solution optionally comprises one or more salts of the Rare Earth Metals other than cerium, (b) adding to the solution obtained a base at 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 m2/g; or is at least 35 m2/g after calcining for 20 hours at 1100° C.; and a composition comprising Al-, 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 m2/g, and/or is at least 35 m2/g after calcining for 20 hours at 1100° C. obtainable or obtained according such process.

    Abstract translation: 一种制备包含Al-,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,该水溶液任选地包含 一种或多种除铈以外的稀土金属盐,(b)在0℃至95℃的温度下,向所得溶液中加入碱,并将氢氧化物或氧化氢氧化物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,其中 方法的特征在于,氧化铝含量在35至80重量%的范围内,所得组合物的表面积(BET)根据DIN(德国工业标准)66131在1100℃下煅烧2小时后测量 C.为55至80平方米/克; 或在1100℃煅烧20小时后至少为35m 2 / g。 以及包含Al-,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℃煅烧20小时后为至少35m 2 / g,可根据这种方法获得或获得 。

    Triazole derivatives for use as antimycotic agents
    5.
    发明授权
    Triazole derivatives for use as antimycotic agents 失效
    用作抗真菌剂的三唑衍生物

    公开(公告)号:US4812465A

    公开(公告)日:1989-03-14

    申请号:US137551

    申请日:1987-12-23

    CPC classification number: C07D231/12 C07D233/56 C07D249/08

    Abstract: Imidazole and triazole derivatives of the general formula ##STR1## in which Ar denotes thienyl or denotes phenyl, biphenylyl or naphthyl, each of which is substituted by halogen, lower alkyl or lower alkoxy, R.sub.1 denotes hydrogen or lower alkyl, Alk denotes straight-chain or branched alkyl having 1 to 10 carbon atoms, Y denotes oxygen, sulfur, sulfinyl or sulfonyl, n denotes zero, 1 or 2, Z denotes oxygen, sulfur or sulfinyl, m denotes zero or 1, R.sub.3 denotes hydrogen, straight-chain or branched alkyl, cyclohexyl, or denotes phenyl which is optionally substituted by hydroxyl, halogen, trifluoromethyl, lower alkyl or lower alkoxy, or denotes biphenlyl, pyridyl or denotes naphthyl which is optionally substituted by halogen, X denotes CH or N, and R.sub.2 denotes hydrogen or lower alkyl, and their pharmaceutically acceptable acid addition salts for use as antimycotic agents in human and veterinary medicine.

    Abstract translation: 咪唑和通式为(I)的咪唑衍生物,其中Ar表示噻吩基或表示苯基,联苯基或萘基,各自被卤素,低级烷基或低级烷氧基取代,R 1表示氢或低级烷基,Alk表示 具有1-10个碳原子的直链或支链烷基,Y表示氧,硫,亚磺酰基或磺酰基,n表示0,1或2,Z表示氧,硫或亚磺酰基,m表示0或1,R3表示氢,直链 链或支链烷基,环己基或表示任选被羟基,卤素,三氟甲基,低级烷基或低级烷氧基取代的苯基,或表示联苯基,吡啶基或表示任选被卤素取代的萘基,X表示CH或N, R2表示氢或低级烷基,以及其药学上可接受的酸加成盐,用作人和兽医学中的抗真菌剂。

    Ceria based glass polishing composition and a process for the manufacture thereof
    7.
    发明授权
    Ceria based glass polishing composition and a process for the manufacture thereof 有权
    二氧化铈基玻璃抛光组合物及其制造方法

    公开(公告)号:US07927391B2

    公开(公告)日:2011-04-19

    申请号:US11996066

    申请日:2006-07-19

    Abstract: The invention is directed to a process for the manufacture of a ceria based polishing composition, comprising (a) suspending an inorganic cerium salt or cerium hydroxide with a cerium content calculated as cerium oxide in the range of 50%-100% based on Total rare earth oxide (TREO) in an aqueous medium thereby obtaining an aqueous suspension, (b) treating said aqueous suspension with an acid or a salt of an acid selected from the group of HF, H3PO4 and H2SO4, thereby obtaining a solid suspended in said aqueous medium, (c) separating said solid from said aqueous medium, and (d) calcining the separated solid at a temperature between 750° C. and 1,200° C. and grinding the calcined solid to grain sizes in the range of 0.5 μm to 5.0 μm.

    Abstract translation: 本发明涉及一种制造二氧化铈基抛光组合物的方法,该方法包括:(a)以基于总稀土的50%-100%的范围,将计算为氧化铈的铈含量的无机铈盐或氢氧化铈悬浮 (TREO),由此获得水性悬浮液,(b)用酸或选自HF,H 3 PO 4和H 2 SO 4的酸的盐处理所述水性悬浮液,从而获得悬浮于所述水性溶液中的固体 介质,(c)从所述水性介质中分离所述固体,和(d)在750℃和1200℃之间的温度下煅烧分离的固体,并将煅烧后的固体研磨至0.5μm至5.0的范围内 μm。

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