On the efficiency of insertion of aluminium into the framework of Y-type zeolite by the hydrothermal process of Liu, Klinowski, and Thomas

Abstract

Liu et al.'s procedure for completely reversing the ultrastabilization of Y-type zeolite was applied to a sample of high quality, commercially prepared ultrastable Y-zeolite (USY); a combination of characterization techniques showed that significant framework realumination occurred, but that the product was only 80% crystalline.