Method of making essentially silicic zeolite beta

摘要

A molecular sieve having a zeolite beta morphology, but essentially free of alumina, is prepared from a silicon oxide source in high yield by a hydrothermal crystallization in the presence of a diquaternary templating agent. The templating agent may be derived from a diamine such as 4,4'-trimethylenebis(N-benzylpiperidine).