Effect of synthesis parameters on crystallization of zeolite T

In the (Na,K) system, separate crystallization fields of the following pure phases have been found: lowsilica variety of phillipsite, high-silica variety of chabazite, and zeolite T, with and without the presence of alkali corrosion of borosilicate glass. This review focuses on hydrothermal synthesis of zeolite T in the Na2O-K2O-AI2O3-SiO2-H2O system with the use experimental plans. Multifactorial plan was applied to study the effect of four synthesis parameters: silicon module, alkalinity, concentration of hydroxide ions in the reaction mixture , crystallization temperature and glass corrosion upon the content of zeolite T, yield, solubility in the product.