Crystalline silicates and process for the production thereof
    1.
    发明公开
    Crystalline silicates and process for the production thereof 失效
    结晶硅酸盐和它们的制备方法。

    公开(公告)号:EP0102497A1

    公开(公告)日:1984-03-14

    申请号:EP83107233.5

    申请日:1983-07-23

    IPC分类号: C01B33/28 B01J29/28

    摘要: Crystalline silicates and processes for the production thereof are described. These crystalline silicates are of new crystalline structure, which, as determined after calcination in the air at 550°C, have a composition represented by the general formula (I): pM 2/n O·Al 2 O 3 ·qSiO 2 (the symbols are as defined in the appended claims) and give a principal X-ray diffraction pattern as shown in Table 1. They are superior in heat resistance and acid resistance, and can be used as catalysts for the conversion of various organic compounds, absorbents, or as catalysts for various reactions. They are produced by reacting an aqueous mixture comprising (a) a silica source, (b) an alumina source, (c) an alkali metal and/or alkaline earth metal source, and (d) ethylene glycol or (e) monoethanolamine at a temperature of 100 to 300°C till the desired crystalline silicates are formed. Although ethylene glycol and monoethanolamine do not remain in the crystalline silicates, they play important roles in the formation of the desired crystalline structure in the course of the production thereof.

    Process for producing a crystalline silicate
    2.
    发明公开
    Process for producing a crystalline silicate 失效
    韦尔法罕zur Herstellung eines kristallinen Silikates。

    公开(公告)号:EP0087017A1

    公开(公告)日:1983-08-31

    申请号:EP83100947.7

    申请日:1983-02-02

    IPC分类号: C01B33/28 B01J29/28

    摘要: A novel crystalline silicate and a process for the production thereof are described. The novel crystalline silicate is produced by reacting an aqueous mixture containing (a) a silica source, (b) an alumina source, (c) an alkali metal and/or alkaline earth metal source, and (d) methanol in the specific molar ratios at a temperature of 100 to 300°C. The presence of methanol in the reaction system enables to produce crystalline silicates having a novel structure. The composition and X-ray diffraction pattern of the crystalline silicate which has been calcined in air at 550°C are as described in the appended claims. The novel crystalline silicate can be used as a catalyst in various chemical reactions, e.g., in the production of para-xylene by the methylation of toluene, and in the production of an aromatic component-rich gasoline fraction from those hydrocarbons having a low aromatic component content.

    摘要翻译: 描述了一种新型的结晶硅酸盐及其生产方法。 通过使含有(a)二氧化硅源,(b)氧化铝源,(c)碱金属和/或碱土金属源的(c)碱金属和/或碱土金属源的(d)甲醇与特定摩尔比的含水混合物 在100至300℃的温度下。反应体系中甲醇的存在使得能够产生具有新颖结构的结晶硅酸盐。 在550℃下在空气中煅烧的结晶硅酸盐的组成和X射线衍射图如所附权利要求所述。 新颖的结晶硅酸盐可以用作各种化学反应中的催化剂,例如通过甲苯甲基化生产对二甲苯,以及从具有低芳族成分的烃生产富含芳香族成分的汽油馏分 内容。