利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN1154341A β沸石合成方法 失效 - 权利终止

β沸石合成方法
摘要：
一种β沸石合成方法，是以任意孔径，20～300目的硅胶为硅源，将其和由铝源、钠源、四乙基铵阳离子源、水组成的工作溶液混合，使硅胶颗粒表面为该工作溶液所润湿，然后分两步或多步进行晶化反应，反应体系具有如下摩尔比组成：SiO2/Al2O3=20～600，Na2O/SiO2=0.01～0.1，TEA/SiO2=0.03～0.20，H2O/SiO2=2～10。该方法较大幅度地降低了模板剂用量，并能在较低铵硅比条件下合成高硅铝比β沸石。
摘要（英）：

20-300 mesh silica gel of arbitrary aperture is used as silicon source and mixed with a working solution composed of aluminium soruce, sodium source, tetra ethyl ammonium cation source and water to make the silica gel particle surface wetted by the working solution, then proceed crystallizing reaction in twos teps or multiple steps. the mole ratio of the reaction system is as follows: SiO2/Al2O3=20-600, Na2O/SiO2=0.01-0.1, TEA/SiO2=0.03-0.20, H2O/SiO2=2-10. This method reduces the dose of template agent and can synthesize high silicon aluminium ratio beta zeolite under low ammonium silicon ratio condition.

公开/授权文献
0/0