Comprehensive study on synthesis routes, morphology & hydrothermal treatment of zeolite beta

In the present article, the effect of various parameters on synthesis, crystal size, morphology and hydrothermal stability of zeolite β are discussed. The most important parameter is Si/Al ratio and scrutinized widely. The effect of Si/Al ration in precursor gel on crystal size and crystallinity, effect of hydrothermal treatment on structure and acidity and industrial stability of zeolite β is reviewed. The Presence of organic template molecules and effect of seeding on structure, physical and chemical properties of zeolite β is also mentioned. Results of a new two-stage varying temperature synthesis and supercritical fluid aided crystallization which is published recently to obtain high yield of nanocrystalline zeolite β is also presented.