Patent ID: 7842640
Filing Date: 2010-11-30
Classification: B01J,C01B,C07C,Y02P

Abstract:
1. A method of synthesizing an aluminophosphate or silicoaluminophosphate molecular sieve, the method comprising: (a) (i) mixing at least a source of water, and a source of aluminum with a source of phosphorus to form a synthesis mixture; (ii) adding a source of silicon to the synthesis mixture, and (iii) adding at least one organic directing agent to the synthesis mixture; (b) maintaining the synthesis mixture at a temperature between 29° C. and 44° C. from the moment the source of phosphorus is completely added into the synthesis mixture; (c) heating the synthesis mixture to a crystallization temperature between about 100° C. and about 350° C. until crystals of the molecular sieve are produced; and (d) recovering the molecular sieve crystals.