Synthesis of zeolites cancrinite and chabazite using partial de-aluminated kaolin

الملخص EN

Waste resulted from aluminum sulfate industry can be used as a source of silicate and aluminum.

Such waste is called partial de-aluminated kaolin which is a solid waste.

This work aims at utilizing such waste in the synthesis of some zeolites, Cancrinite and Chabazite-Na as two members of zeolite family were synthesized from It has been used as source of silica and alumina.

Alumina ratio can be adjusted by adding aluminum sulfate.

Cancrinite and Chabazite-Na were synthesized by heating partial de-aluminate kaolin for 2 h at 130 °C in autoclave.

The hydrothermal system took 6–8 hours.

However, 36 hours ageing at 70 °C was found to be synthesized Cancrinite and Chabazite-Na.

The products were characterized using XRD and Sem.