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.