Moldings based on pyrogenic silicon dioxide
    3.
    发明授权
    Moldings based on pyrogenic silicon dioxide 失效
    基于热解二氧化硅的成型品

    公开(公告)号:US06593270B1

    公开(公告)日:2003-07-15

    申请号:US09187420

    申请日:1998-11-06

    IPC分类号: B01J2344

    摘要: Moldings based on pyrogenic silicon dioxide with a pore volume of 0.5 to 1.8 ml/g are prepared by homogenizing pyrogenic silicon dioxide with methylhydroxyethyl cellulose, wax and polyethylene glycol with the addition of water, subjecting this mixture to a compounding and shaping process, extruding, optionally cutting the extrudate to the desired length using a cutting device, drying at a temperature of 70° to 150° C. and conditioning for a period of 30 minutes to 10 hours at a temperature of 400° to 1200° C. The moldings may be used as catalysts or catalyst supports for the preparation of vinyl acetate monomer, the hydration of ethylene and the hydration of propylene.

    摘要翻译: 通过用甲基羟乙基纤维素,蜡和聚乙二醇与加入水均匀化热解二氧化硅,制备孔体积为0.5至1.8ml / g的热解二氧化硅的模制品,使该混合物进行配混和成型过程, 任选地使用切割装置将挤出物切割成所需长度,在70℃至150℃的温度下干燥,并在400-1200℃的温度下调理30分钟至10小时。模制品可以 用作制备乙酸乙烯酯单体的催化剂或催化剂载体,乙烯的水合和丙烯的水合。

    Catalyst support
    8.
    发明申请
    Catalyst support 有权
    催化剂支持

    公开(公告)号:US20050202962A1

    公开(公告)日:2005-09-15

    申请号:US11124104

    申请日:2005-05-09

    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, VIB, 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, VIB, 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,VIB,VIIB,VIII,IB,IIB,IIIA,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,VIB,VIIB,VIII,IB,IIB,IIIA,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。