Study on the effect of synthetic condition on the crystal size of zeolite hy by laser scattering

Abstract

In this paper, besides popular method in studying zeolit, we focused on studying and surveying factors affecting on crystal particle size of zeolit HY by laser scattering technique. Laser scattering spectrum indicates the distribution of particle diameters in the sample as well as how concentrated or scale of this distribution and this method is importan and reliable in studying of zeolit particle size.

In this work, HY samples were sucessfully syntheized with high Si/Al ratio different crystal size of 720, 547, 260 and 199 nm. HY samples synthesized from Aluminum Boemit source having particles size smaller than the one from Al(OH)3. The aging time also has positive influences to the crystallinity degree and the crystal size of zeolit HY: the longer the aging time (from 12 – 24 hr), the smaller the HY crystals.