Patent ID: 6685905
Filing Date: 2004-02-03
Classification: B01J,C01B,C07C,Y10S

Abstract:
A process for the manufacture of a silicoaluminophosphate molecular sieve, the process comprising:(i) forming a synthesis mixture comprising the steps of: (a) mixing an inorganic source of aluminium and water to form a first mixture having a water to aluminium, measured as Al2O3, ratio within the range of 3:1 to 8:1 by weight; (b) mixing a source of phosphorus with the product of step (a); and (c) mixing a structure directing agent and a source of silicon with the product of step (b); and (ii) subjecting the synthesis mixture resulting from step (c) to hydrothermal treatment under conditions effective to produce the silicoaluminophosphate molecular sieve.