Use of zinc in synthesis of large-mesopore y zeolite

Abstract

Provided is a process for synthesizing mesopores-Y zeolite having mesopores up to about 20 nm in diameter. The process comprises starting with a parent meso-Y zeolite and imposing intimate contact between a zinc species and aluminosilicate of the meso-Y zeolite while calcining. The calcined product is then subjected to a hydrothermal treatment in the presence of a residual amount of the Zn species. The species can comprise ZnO.

Dependencies are inferred from the claim text.