Crystalline zeolite-like gallosilicate, and method for its synthesis
    89.
    发明授权
    Crystalline zeolite-like gallosilicate, and method for its synthesis 失效
    结晶沸石状硅酸盐及其合成方法

    公开(公告)号:US5466432A

    公开(公告)日:1995-11-14

    申请号:US287232

    申请日:1994-08-08

    Abstract: The invention relates to a crystalline zeolite-like gallosilicate having an atomic ratio of Si/Ga in the outer crystalline surface that is not larger than the average Si/Ga ratio for the whole of the crystal. The invention also relates to a method of making such a gallosilicate comprising the hydrothermal crystallization of a strictly inorganic reaction mixture having the following molar ratios: SiO.sub.2 /Ga.sub.2 O.sub.3 .gtoreq.5; OH.sup.- /SiO.sub.2 =0.05-1.0; and H.sub.2 O/SiO.sub.2 =10-1,000. The invention further relates to the above-described method wherein said reaction mixture is prepared by adding an aged gel to a first mixture, the first mixture preferably having a composition with the following molar ratios: SiO.sub.2 /Ga.sub.2 O.sub.3 .gtoreq.5; OH.sup.- /SiO.sub.2 =0.05 to 1.0; and H.sub.2 O/SiO.sub.2 =20 to 100.

    Abstract translation: 本发明涉及外晶面中Si / Ga原子比不大于整个晶体的平均Si / Ga比的结晶沸石状半硅酸盐。 本发明还涉及一种制备这种硅酸盐硅酸盐的方法,其包括具有以下摩尔比的严格无机反应混合物的水热结晶:SiO 2 / Ga 2 O 3> = 5; OH- / SiO 2 = 0.05-1.0; 和H2O / SiO2 = 10-1,000。 本发明还涉及上述方法,其中所述反应混合物通过将老化凝胶加入到第一混合物中制备,第一混合物优选具有以下摩尔比的组成:SiO 2 / Ga 2 O 3> = 5; OH- / SiO 2 = 0.05〜1.0; 和H 2 O / SiO 2 = 20〜100。

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