A CONVENIENT METHOD FOR CRYSTALLIZATION OF ZEOLITE ZSM-5 BY USING SEED CRYSTALS IN ACETONE/WATER MIXTURE SYSTEM

Abstract Zeolite ZSM-5 was easily synthesized by using ZSM-5 seed crystals as crystallization nuclei from acetone/water mixture system without any organic templates. A small amount of acetone in a reaction mixture inhibited formation of α-quartz and facilitated rapid crystallization of ZSM-5 under the mild hydrothermal conditions of 170–190 °C.