Method of preparing crystalline zeolitic aluminosilicates
    9.
    发明授权
    Method of preparing crystalline zeolitic aluminosilicates 失效
    制备结晶沸石铝硅酸盐的方法

    公开(公告)号:US4606900A

    公开(公告)日:1986-08-19

    申请号:US694536

    申请日:1985-01-24

    摘要: There is disclosed an improvement in the preparation of a crystalline zeolitic aluminosilicate with an atomic Si-to-Al ratio .gtoreq.10 by hydrothermal crystallization from a reaction batch that contains SiO.sub.2 and Al.sub.2 O.sub.3 or their hydrated derivatives or alkali silicates and aluminates along with crystallization accelerators and optionally in the copresence of a quaternary ammonium compound amino or mixture of alcohol and ammonia, in an aqueous and alkaline medium, the improvement wherein an aged but still X-ray amorphous aluminosilicate nucleating gel with an atomic Si-to-Al ratio .gtoreq.10 is added to the reaction batch as a crystallization accelerator.

    摘要翻译: 公开了通过水热结晶从含有SiO 2和Al 2 O 3或其水合衍生物或碱性硅酸盐和铝酸盐的反应批料以及结晶的方法制备具有原子Si-Al比率> / = 10的结晶沸石硅铝酸盐的改进 促进剂和任选地在季铵化合物氨基或醇和氨的混合物中的水性和碱性介质中的改进,其中具有Si-Al原子比的原子的老化但仍然是X射线的非晶硅铝酸盐成核凝胶> / = 10作为结晶促进剂加入到反应批料中。