Title:
NANOCRYSTALLINE INORGANIC BASED ZEOLITE AND METHOD FOR MAKING SAME
Document Type and Number:
WIPO Patent Application WO2004000730
Kind Code:
A3
Abstract:
A method for making a zeolite includes impregnating a porous inorganic oxide with a liquid solution containing an inorganic micropore-forming directing agent. The amount of liquid solution is no more than about 100% of the pore volume of the porous inorganic oxide, and the concentration of the directing agent in the liquid solution ranges from about 21% to about 60% by weight. The impregnated amorphous inorganic oxide is heated at a synthesis temperature of from about 50 °C to about 150 °C for a duration of time sufficient to form a zeolite-containing product. The method herein is advantageous for the transformation of a mesoporous or macroporous amorphous inorganic material to a composite structure containing the original mesopores or macropores, but wherein at least some of the porous inorganic oxide material is converted to nanocrystalline zeolite, such as zeolite Y. Also, a unique composition of matter is defined having the X-ray diffraction pattern of zeolite Y, a silica to alumina molar ratio of less than (10), preferably less than (6), and a crystal size of no more than about 100 nm.
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Inventors:
KOEGLER JOHANNES HENDRIK
YEH CHUEN Y
ANGEVINE PHILIP J
YEH CHUEN Y
ANGEVINE PHILIP J
Application Number:
PCT/US2003/002491
Publication Date:
April 08, 2004
Filing Date:
January 29, 2003
Export Citation:
Assignee:
ABB LUMMUS GLOBAL INC (US)
International Classes:
C01B39/04; C01B39/24; C07C201/08; C01B39/02; (IPC1-7): C01B39/20; C01B39/24; C01B39/02; C01B39/04; C01B37/00
Domestic Patent References:
| WO1999016709A1 | 1999-04-08 |
Foreign References:
| US3065054A | 1962-11-20 | |||
| EP0311983A2 | 1989-04-19 |
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