Catalyst Support
    3.
    发明申请
    Catalyst Support 有权
    催化剂支持

    公开(公告)号:US20040063575A1

    公开(公告)日:2004-04-01

    申请号:US10670222

    申请日:2003-09-26

    申请人: Degussa AG

    摘要: A catalyst support consisting mainly of synthetic silica, with 0.5-10 parts by weight of one or more oxides or phosphates of the elements of group IIA, IIIB, IVB, VB, VIIB, VIIB, VIII, IB, IIB, IIIA, IVA and the lanthanides characterised in that the support preparation method comprises mixing particulate synthetic silica with particulate oxides or phospates of the elements of Groups IIA, IIIB, IVB, VB, VIIB, VIIB, VIII, IB, IIB, IIIA, IVA and the lanthanides, or with precursors thereof, a forming step and calcination. The catalyst support is used together with phosphoric acid in the production of alcohols from olefins by hydration.

    摘要翻译: 主要由合成二氧化硅组成的催化剂载体,其具有0.5-10重量份的IIA,IIIB,IVB,VB,VIIB,VIIB,VIII,IB,IIB,VIIA,IVA族元素的一种或多种氧化物或磷酸盐,以及 镧系元素的特征在于载体制备方法包括将颗粒状合成二氧化硅与IIA,IIIB,IVB,VB,VIIB,VIIB,VIII,IB,IIB,VIIA,IVA族和镧系元素的元素的颗粒氧化物或磷酸盐混合,或 其前体,成型步骤和煅烧。 催化剂载体与磷酸一起用于通过水合由烯烃生产醇。

    Method for preparing heteropolyacid catalyst and method for producing methacrylic acid
    4.
    发明申请
    Method for preparing heteropolyacid catalyst and method for producing methacrylic acid 失效
    制备杂多酸催化剂的方法和生产甲基丙烯酸的方法

    公开(公告)号:US20010029233A1

    公开(公告)日:2001-10-11

    申请号:US09797683

    申请日:2001-03-05

    摘要: A novel method for preparing a heteropolyacid catalyst containing a heteropolyacid composed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt of the heteropolyacid, is provided. The method comprises preparing an aqueous solution or aqueous dispersion which (1) contains the nitrogen-containing heterocyclic compound, nitrate anions and ammonium ions, (2) the ammonium ion content not exceeding 1.7 mols per mol of the nitrate anion content, and (3) the ammonium ion content not exceeding 10 mols per 12 mols of the molybdenum atom content by mixing raw materials containing the catalyst-constituting elements with the nitrogen-containing heterocyclic compound in the presence of water, drying and calcining the same. This heteropolyacid catalyst excels over conventional catalysts in performance, life and strength.

    摘要翻译: 提供了一种制备含有由钼磷酸和/或钼钒钒酸组成的杂多酸的杂多酸催化剂或杂多酸盐的新方法。 该方法包括制备(1)包含含氮杂环化合物,硝酸根阴离子和铵离子的水溶液或水分散体,(2)每摩尔硝酸根阴离子含量不超过1.7摩尔的铵离子含量,和(3 )通过在水存在下将含有催化剂构成元素的原料与含氮杂环化合物混合,干燥并煅烧,铵离子含量不超过10摩尔/ 12摩尔钼原子含量。 这种杂多酸催化剂在性能,寿命和强度方面优于常规催化剂。

    Catalyst for use in producing lower aliphatic carboxylic acid ester, process for producing the catalyst, and process for producing lower aliphatic carboxylic acid ester using the catalyst
    10.
    发明申请
    Catalyst for use in producing lower aliphatic carboxylic acid ester, process for producing the catalyst, and process for producing lower aliphatic carboxylic acid ester using the catalyst 审中-公开
    用于制备低级脂族羧酸酯的催化剂,用于制备催化剂的方法,以及使用该催化剂生产低级脂族羧酸酯的方法

    公开(公告)号:US20040186015A1

    公开(公告)日:2004-09-23

    申请号:US10813167

    申请日:2004-03-31

    申请人: SHOWA DENKO K.K.

    摘要: A process for producing a catalyst for use in producing a lower aliphatic carboxylic acid ester. The catalyst is used in reacting a lower olefin with a lower aliphatic carboxylic acid in a gas phase to produce a lower aliphatic carboxylic acid ester. The process comprises the following first and second steps. The first step is a step of loading one or more heteropolyacid on a support to obtain a heteropolyacid supported catalyst. The second step is a step of contacting the heteropolyacid supported catalyst obtained in the first step with a gas containing at least one member selected from the group consisting of water, a lower aliphatic carboxylic acid and a lower aliphatic alcohol to obtain a catalyst for use in producing a lower aliphatic carboxylic acid ester.

    摘要翻译: 一种制备用于制备低级脂族羧酸酯的催化剂的方法。 催化剂用于在气相中使低级烯烃与低级脂族羧酸反应以产生低级脂族羧酸酯。 该方法包括以下第一和第二步骤。 第一步是将一种或多种杂多酸负载在载体上以获得负载杂多酸的催化剂的步骤。 第二步是使第一工序得到的杂多酸负载型催化剂与含有选自水,低级脂肪族羧酸,低级脂族醇中的至少一种的气体接触,得到催化剂 生成低级脂族羧酸酯。