Patent ID: 8778824
Filing Date: 2014-07-15
Classification: B01J,C01B,C01P,C10G

Abstract:
1. A highly aggregated form of zeolite Y comprising small size primary crystallites of zeolite Y, wherein at least 80% of the primary crystallites are aggregated to form secondary particles having an external surface, wherein the zeolite exhibits a silica to alumina molar ratio of 4:1 or more, wherein an average size of the secondary particles, as viewed from the external surface of the secondary particles, is about 0.8 micron or more, and wherein at least one of the following conditions apply: (a) an average size of the primary crystallites in the secondary particles, as viewed from the external surface of the secondary particles, is about 0.5 micron or less; (b) at least 80% of the secondary particles comprise at least 5 primary crystallites; and (c) in at least 80% of the secondary particles, a ratio of the average size of the secondary particles to the average size of the primary crystallites is at least 3:1.