Synthesis and Evaluation of LTA Type Zeolite from Waste Perlite

Abstract

Perlite is an amorphous aluminum silicate, mainly composed of SiO2 and Al2O3. In this study, we tried to synthesize LTA type zeolite from a perlite as a starting material. It was found that the mechano-chemical treatment (milling process) for perlite as a raw material resulted in the activation of its surface. As a result, fine LTA-type zeolites were preferentially synthesized for perlite with surface activated by mechano-chemical treatments.