METHOD FOR PRODUCING gamma-VALEROLACTONE
    2.
    发明申请

    公开(公告)号:US20180297972A1

    公开(公告)日:2018-10-18

    申请号:US15766381

    申请日:2016-09-06

    Abstract: Provided is a method for producing γ-valerolactone that is hard to elute metallic components and has high productivity. γ-Valerolactone is synthesized by bringing a levulinic acid compound represented by the formula (1) (where R represents a hydrogen atom, a linear alkyl group of 1 to 6 carbon atoms or a branched alkyl group of 3 to 6 carbon atoms) into contact with hydrogen in the presence of a catalyst in which two or more different kinds of metals of Group VIII to Group X metals in the periodic table are supported on a support.

    Method for preparing a supported ruthenium catalyst
    7.
    发明授权
    Method for preparing a supported ruthenium catalyst 有权
    负载型钌催化剂的制备方法

    公开(公告)号:US09499402B2

    公开(公告)日:2016-11-22

    申请号:US14118301

    申请日:2012-05-15

    Abstract: In a method of preparing a ruthenium-containing catalyst on a non-conductive metal oxide support comprises dissolving one or more ruthenium precursor compounds in an liquid organic polyol, combining the thus obtained solution with (a) nano-powder(s) of one or more metal oxides in a ratio of moles metal oxide(s) to moles ruthenium atoms in the one or more ruthenium precursor compounds of about 0:1 to about 6:1, the metal oxide nano-powder(s) having a surface area of from about 5 to about 300 m2/g and a point of zero charge (PZC) of pH 5.5 or higher, agitating the thus obtained mixture, adding pre-shaped alumina support pellets to the agitated mixture, which is than heated at a temperature of about 50° C. to the boiling point of the organic polyol, until the reaction is finished, cooling the mixture and combining it with an aqueous solution of NaNO3 and/or KNO3, agitating the resultant mixture, separating the solvent and the solids, and drying the thus obtained solid pellets of alumina, or alumina and the metal oxide(s) of the nano-powder(s) coated with ruthenium and an additional amount Na and/or K ions. Also disclosed is the supported ruthenium-containing catalyst obtainable by the method and the use thereof in decomposing ammonia into nitrogen and oxygen.

    Abstract translation: 在非导电性金属氧化物载体上制备含钌催化剂的方法包括将一种或多种钌前体化合物溶解在液体有机多元醇中,将由此获得的溶液与(a)一种或多种纳米粉末组合, 一种或多种钌前体化合物中的金属氧化物与一种或多种钌前体化合物中钌原子摩尔数的摩尔比为大约0:1至大约6:1的金属氧化物,所述金属氧化物纳米粉末的表面积为 约5至约300m 2 / g和pH 5.5或更高的零电荷点(PZC),搅拌由此获得的混合物,将预形状的氧化铝载体颗粒加入到搅拌的混合物中,该混合物在温度为 约50℃至有机多元醇的沸点,直到反应完成,冷却混合物并将其与NaNO 3和/或KNO 3的水溶液混合,搅拌所得混合物,分离溶剂和固体,和 干燥由此获得的氧化铝固体颗粒, 或氧化铝和涂覆有钌的纳米粉末和额外量的Na和/或K离子的金属氧化物。 还公开了通过该方法获得的负载的含钌催化剂及其在将氨分解成氮和氧的用途。

Patent Agency Ranking