Process for the reductive deposition of polyoxometallates
    1.
    发明授权
    Process for the reductive deposition of polyoxometallates 失效
    多金属氧酸盐还原沉积工艺

    公开(公告)号:US4634502A

    公开(公告)日:1987-01-06

    申请号:US769557

    申请日:1985-08-26

    CPC分类号: B01J37/348 C25D9/08

    摘要: A process for the reductive deposition of polyoxometallate complexes on supports. The process includes the steps of forming a solution of at least one polyoxometallate compound in a solvent, said compound having the formula A.sub.a (L.sub.l M.sub.m J.sub.z O.sub.y), adding a quantity of a support material having electronic conductivity to the solution, charging the solution containing the support material to an electrolytic cell in contact with the cathode thereof, the cell having a separate compartment for the anode, passing a current of from about 0.1 to about 500 mA/cm.sup.2 of electrode area through the cell whereby the support material receives a deposit of a polyoxometallate wherein the average oxidation state of the metals therein has been reduced to a valence greater than zero and, thereafter separating and recovering the support material carrying the reduced metallate complex.

    摘要翻译: 多金属氧酸盐配合物在载体上还原沉积的方法。 该方法包括以下步骤:在溶剂中形成至少一种多金属氧酸盐化合物的溶液,所述化合物具有式Aa(L1MmZzOy),向溶液中加入一定量的具有电子导电性的载体材料,将含有载体材料的溶液 到与阴极接触的电解池中,电池具有用于阳极的单独的隔室,使约0.1至约500mA / cm 2的电极面积的电流通过电池,由此支撑材料接收多金属氧酸盐沉积物 其中金属中的平均氧化态已经降低到大于零的价态,然后分离和回收载有还原的金属化合物的载体材料。

    Synthesis of molecular sieving metallosilicates using silica-transition
metal oxide sols
    2.
    发明授权
    Synthesis of molecular sieving metallosilicates using silica-transition metal oxide sols 失效
    使用二氧化硅 - 过渡金属氧化物溶胶合成分子筛金属硅酸盐

    公开(公告)号:US4705675A

    公开(公告)日:1987-11-10

    申请号:US672286

    申请日:1984-11-16

    摘要: A method for preparing a molecular sieving metallosilicate is disclosed which comprises(A) providing an aqueous dispersion of colloidal particles comprising contiguous mixtures of silica and the oxide of a transition metal selected from the group consisting of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Zr, Y or a mixture of two or more of said metals;(B) mixing an effective amount of a mineralizing agent and/or synthesis directing agent with said dispersion to form a gel; and(C) maintaining said gel at a temperature of about 80.degree. C. to about 300.degree. C. for an effective period of time to provide said metallosilicate.

    摘要翻译: 公开了一种制备分子筛金属硅酸盐的方法,其包括(A)提供包含二氧化硅和过渡金属的氧化物的胶体颗粒的水分散体,所述过渡金属的选自Sc,Ti,V,Cr,Mn, Fe,Co,Ni,Zn,Zr,Y或两种或更多种所述金属的混合物; (B)将有效量的矿化剂和/或合成导向剂与所述分散体混合以形成凝胶; 和(C)将所述凝胶保持在约80℃至约300℃的温度下持续有效的时间以提供所述金属硅酸盐。

    Process for one step esterification using an intermetallic palladium
based catalyst system
    3.
    发明授权
    Process for one step esterification using an intermetallic palladium based catalyst system 失效
    使用金属间钯基催化剂体系进行一步酯化的方法

    公开(公告)号:US4877898A

    公开(公告)日:1989-10-31

    申请号:US873428

    申请日:1986-06-12

    IPC分类号: C07C67/39 C07C69/54

    CPC分类号: C07C67/39

    摘要: A process for the one step esterification of aldehydes and alcohols comprises the steps of combining an aldehyde with an alcohol, in the presence of oxygen and in contact with a catalyst having the general formulaPdTe.sub.a Zn.sub.d E.sub.ewhereE is one or more metals from the group consisting of group IA, IIA, IVA, VIIB or VIII metals, As or Sb; anda, d and e are from about 0 to 3 with the proviso that at least d or e.noteq.0.

    摘要翻译: 用于醛和醇的一步酯化的方法包括以下步骤:在氧的存在下将醛与醇组合并与具有通式PdTeaZndEe的催化剂接触,其中E是一种或多种金属, IA,IIA,IVA,VIIB或VIII族金属,As或Sb; a,d和e为约0至3,条件是至少d或e。

    Method for the preparation of high activity palladium based catalysts
    4.
    发明授权
    Method for the preparation of high activity palladium based catalysts 失效
    高活性钯基催化剂的制备方法

    公开(公告)号:US4714695A

    公开(公告)日:1987-12-22

    申请号:US852733

    申请日:1986-04-16

    摘要: A method for the preparation of a high activity palladium metal based catalyst having the formulaPdTe.sub.a Zn.sub.d E.sub.ewhereE is one or more metals from the group IIA, IVA, VA, IB, VIIB or VIII; anda, d and e are from about 0 to 3, with the proviso that at least d or e.noteq.0.The method comprises the step of forming an aqueous solution of a palladium compound, adding to the solution a powder of a reducing metal more electropositive than palladium and reducing the palladium to its metallic state on the surface of the reducing metal and, separating the resulting catalyst from the solution. Catalysts prepared according to this method are useful for producing esters from aldehydes and alcohols and provide greater conversions to the ester than catalysts prepared by previous processes.

    摘要翻译: 一种制备具有式PdTeaZndEe的高活性钯金属基催化剂的方法,其中E是IIA,IVA,VA,IB,VIIB或VIII族中的一种或多种金属; 并且a,d和e为约0至3,条件是至少d或e为0。该方法包括形成钯化合物的水溶液的步骤,向溶液中加入还原金属的粉末 比钯更正电,并在还原金属的表面上将钯还原成其金属状态,并将所得催化剂与溶液分离。 根据该方法制备的催化剂可用于从醛和醇生产酯,并且比通过先前方法制备的催化剂提供比酯更大的转化率。

    Method for the preparation of unsaturated carboxylic acid with high
activity phosphomolybdic acid based catalysts
    5.
    发明授权
    Method for the preparation of unsaturated carboxylic acid with high activity phosphomolybdic acid based catalysts 失效
    用高活性磷钼酸催化剂制备不饱和羧酸的方法

    公开(公告)号:US4528398A

    公开(公告)日:1985-07-09

    申请号:US442702

    申请日:1982-11-18

    摘要: The present invention relates to a method for the preparation of phosphomolybdic acid based catalysts utilized in the oxidation of aldehydes to unsaturated carboxylic acids by forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkanol, adding a base to the solution, evaporating the solution to yield a catalyst powder and thereafter drying and calcining the powder to form the active catalyst. A second method for preparation is also provided and includes the steps of forming a solution of hydrated phosphomolybdic acid in a substantially anhydrous alkanol, evaporating the solution to form a concentrate, impregnating a catalyst support material with the concentrate, contacting the impregnated support with ammonia gas in an amount sufficient to form an insoluble precipitate of ammonium alkyl phosphomolybdic acid within the pore structure of said support material and thereafter drying and calcining said impregnated support material so as to form a coated catalyst.

    摘要翻译: 本发明涉及通过在基本上无水的链烷醇中形成水合磷钼酸的溶液来将醛氧化成不饱和羧酸的方法,用于制备基于磷钼酸的催化剂的方法,向溶液中加入碱,将溶液蒸发至 得到催化剂粉末,然后干燥并煅烧粉末以形成活性催化剂。 还提供了第二种制备方法,包括以下步骤:在基本无水的烷醇中形成水合磷钼酸溶液,蒸发溶液以形成浓缩物,用浓缩物浸渍催化剂载体材料,使浸渍的载体与氨气接触 其量足以在所述载体材料的孔结构内形成烷基磷钼酸铵的不溶性沉淀物,然后干燥和煅烧所述浸渍的载体材料以形成涂覆的催化剂。

    Iron-phosphorus mixed oxide catalysts and process for their preparation
    8.
    发明授权
    Iron-phosphorus mixed oxide catalysts and process for their preparation 失效
    铁磷复合氧化物催化剂及其制备方法

    公开(公告)号:US4427792A

    公开(公告)日:1984-01-24

    申请号:US291603

    申请日:1981-08-10

    CPC分类号: B01J27/1853 B01J27/186

    摘要: A process is provided for the preparation of iron phosphorous mixed oxide catalysts which are highly active at moderate temperatures by introducing iron and phosphorus containing compounds and promoter element containing compounds, if any, into a substantially organic liquid medium, heating, separating the resulting precursor, drying and calcining. The catalysts are useful for the dehydrogenation or oxydehydrogenation of organic compounds such as aldehydes or carboxylic acids.

    摘要翻译: 提供了一种通过将含铁和磷的化合物和含促进剂元素的化合物(如果有的话)引入基本上有机的液体介质中,在中等温度下高度活性的铁磷混合氧化物催化剂的制备方法,加热,分离所得的前体, 干燥和煅烧。 该催化剂可用于有机化合物如醛或羧酸的脱氢或氧化脱氢。

    Reactor for contacting gases and a particulate solid
    9.
    发明授权
    Reactor for contacting gases and a particulate solid 失效
    用于接触气体和颗粒固体的反应器

    公开(公告)号:US4341717A

    公开(公告)日:1982-07-27

    申请号:US967557

    申请日:1978-12-08

    摘要: The present invention is a reactor that consists of a single shell that contains a reaction zone and a regeneration zone. The reaction zone and regeneration zone are arranged in such a manner that (a) a particulate solid may be transferred by flow of gases from the regeneration zone to the reaction zone by a first route and then back to the regeneration zone by a second route; and (b) the gases passing through the regeneration zone are not transferred to the reaction zone and the gases passing through the reaction zone are not transferred to the regeneration zone.

    摘要翻译: 本发明是由包含反应区和再生区的单壳构成的反应器。 反应区和再生区以这样一种方式排列,使得(a)颗粒状固体可以通过气流从第一路线从再生区转移到反应区,然后通过第二路径返回到再生区; 和(b)通过再生区的气体不会转移到反应区,而通过反应区的气体不会转移到再生区。