The static aging effect on the seedless synthesis of different ranges Faujasite-type zeolite Y at various factors

Abstract EN

This work focuses on the formation of a pure phase Faujasite-type zeolite Y via a static aging step in the absence of seeds at the ranges chosen for this study.

Nano-sized crystals of Y zeolite were successfully obtained when LUDOX AS-40 was used as a silica source for gel composition of range 6 and crystallization wasconducted for a period of 4 to 19 hr at 100⁰C with surface area of 672 m 2 /g.

Moreover, large-crystals with high crystallinity pure phase Y zeolite (with surface area of 682 m2 /g) can be obtained here at the above conditions but when hydrous sodium metasilicate was used as a silica source.

The most significant outcome of this study is that static aging effectively leads to obtaining a pure phase Y zeolite for all selected ranges at controlled conditions in a seedless synthesis.