PROCESS FOR PREPARING A COMPOSITE MATERIAL OF ZEOLITHE Y NANOCRYSTALS AND ZEOLITE BETA REPRESENTING LESS THAN 45 MASS OF THE COMPOSITE

摘要

The invention relates to a new process for the preparation of a composite material comprising a nanometric zeolite of structural type FAU whose crystal size is less than 300 nm and having an SiO2 / Al2O3 ratio of greater than 4 and a structural Beta zeolite. * BEA representing less than 45% and preferably less than 20% by weight of said composite material.