Siberian Federal University

One of the most important objectives of the research of crystallization processes of zeolites is the creation of materials with predetermined structure and composition. Based on the natural mineral of deposit of Nakhchivan a zeolite of the potassium-containing type W was synthesized. The synthesis was carried out in hydrothermal conditions, in a temperature range of 150-250 °C, at the variation of the potassium hydroxide concentration in the range 1-3 N for 3-5 days. The optimum conditions for obtaining a zeolite of type W are the temperature of 150 °C, the concentration of KOH solution of 1 N, the treatment time is 3 days. The initial sample and resulting zeolite was investigated by X-ray diffraction, thermogravimetric, IR-spectroscopic methods and by elemental analysis. According to the X-ray data zeolite of W crystallizes in a cubic system with a unit cell parameter a=20.1 Å