硅铝凝胶

运用XRD、SEM等分析手段对产物及硅铝凝胶前体进行表征，并对VPT法合成MCM-22的晶化机理作了探讨。

The aluminosilicate gel precursors and the products were characterized by powder XRD and SEM , etc.

硅铝凝胶制备与晶化研究

Preparation and Crystallization of Si-Al Gel

沸石分子筛通常在水热条件下，采用无定形硅铝凝胶为原料合成。

In general , zeolite is synthesized under hydrothermal condition using an amorphous aluminosilicate gel as a starting material .

本文以铝胶和硅胶为原料，采用溶胶-凝胶方法进行了硅铝凝胶形成及晶化行为研究。

A study is on synthesis and crystallization of silica and alumina gel , using alumina sol and silica sol as raw materials by sol-gel method .

结果表明，采用超临界流体干燥技术，可制得白色蓬松的超细无定形硅铝气凝胶，其中球形颗粒粒径小于30nm；

The results show : ( 1 ) The SCFD method can yield white , well-dispersed , non-crystalline ultrafine aluminum-silica aerogel with the diameter of spherical particles smaller than 30nm ;

原位晶化过程是焙烧微球在液相组分中先转变为硅铝酸钠凝胶，随后硅铝酸钠凝胶逐步地转变为Y型沸石。

The process of in-situ crystallization is that the roasted microparticles in the liquid phase convert into sodium silicoaluminate gel first and then the gels convert into zeolite Y gradually .

以硬脂酸、SAE30润滑油和异丙醇铝为原料，采用一步法，并添加甲基硅油制备含硅铝基润滑脂凝胶。

By using stearine , lubricating oil in SAE 30 and isopropanol aluminum as feed , aluminum base grease gels containing methyl silicone oil were prepared with one stage method .

含硅铝基润滑脂凝胶的结构特征及流变性

Structure Characters and Rheological Property of Aluminum - base Grease Gels Containing Silicone

以硅酸钠为硅源、硫酸铝为铝源制备硅铝干凝胶，六亚甲基亚胺（HMI）为模板剂，采用气相法合成MCM-22沸石。

Zeolite MCM-22 was synthesized by vapor-phase transport method ( VPT ) with sodium silicate as silicon source , aluminium sulfate as aluminum source and HMI as the template .