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    • 36. 发明授权
    • Gallosilicate catalysts and method of making same
    • 高硅酸盐催化剂及其制备方法
    • US5409687A
    • 1995-04-25
    • US255306
    • 1994-06-07
    • Martin WallauArno TisslerRoland ThomeKlaus K. Unger
    • Martin WallauArno TisslerRoland ThomeKlaus K. Unger
    • B01J29/87C01B39/08B01J29/40C01B39/38
    • B01J29/87C01B39/082Y10S423/22
    • Gallosilicates can be formed in the absence of structure-guiding organic hydrocarbons or amines by(a) combining water, a base, a gallium material selected from the group consisting of alkali metal gallates, Ga.sub.2 O.sub.3 and hydrated derivatives of Ga.sub.2 O.sub.3, and gallium salts optionally in aqueous solution, with a powder consisting essentially of particles of silicon dioxide or a hydrated derivative thereof having a diameter of 0.1 to 5 microns and a specific surface area of 20-22 m.sup.2 /g in amounts such that the atomic ratio of silicon to gallium is at least 10 to form an alkaline aqueous reaction mixture; and(b) heating the reaction mixture to produce zeolite-like gallosilicates. These materials are advantageously recovered from the reaction mixture and subjected to ion exchange to replace any alkali metal or alkaline-earth metal ions present with protons.
    • 可以通过(a)将水,碱,选自碱金属镓酸盐,Ga 2 O 3和Ga 2 O 3的水合衍生物的镓材料和镓盐任意地混合在一起,形成不含结构导向有机烃或胺的高硅酸盐 水溶液,其基本上由二氧化硅或其水合衍生物的颗粒组成,其直径为0.1至5微米,比表面积为20-22m 2 / g,其量使得硅与镓的原子比为 至少10以形成碱性水性反应混合物; 和(b)加热反应混合物以产生沸石状的硅酸盐。 这些材料有利地从反应混合物中回收并进行离子交换以取代质子中存在的任何碱金属或碱土金属离子。