Synthesis of small crystal zeolite beta in a biphasic H2O-CTAB-alcohol system

Small crystal zeolite Beta with SiO₂/Al₂O₃ ratios ranging from 30 to 400 has been synthesized in a biphasic H₂O-CTAB-Alcohol system using colloidal precursor which contains secondary building units of zeolite Beta as the silica and aluminum sources. The experimental results evidenced that the synthesis system employed here resulted in readily the formation of small crystal size zeolite Beta, and the crystallite aggregates consisting of many small particles with size close to the range of nanometer were obtained. The obtained zeolite Beta samples synthesized in the biphasic system displayed higher catalytic activity for n-hexane hydrocracking than that synthesized in single aqueous system.