Research on the synthesis of zeolite NaX using Angren kaolin

Abstract

In this study, the potential use of Angren kaolin as a source of silicon and aluminum oxides for the synthesis of NaX zeolite was investigated. The synthesis of NaX zeolite involved several stages: obtaining metakaolin from kaolin, preparing the synthesis mixture with the required molar ratio of the initial components, adding silicate to regulate the Si/Al ratio in accordance with X-type zeolites, and subsequent hydrothermal treatment at 120 °C. X-ray diffraction (XRD) analysis confirmed the successful transformation of the synthesized mixture into NaX zeolite. Spectroscopic analyses further verified the formation of the crystalline structure of NaX zeolite synthesized using kaolin as a source of silicon and aluminum