Patent ID: 7037874
Filing Date: 2006-05-02
Classification: B01J,C01B,Y10S

Abstract:
1. A process for the preparation of a porous crystalline silicoaluminophosphate molecular sieve having a chemical composition in terms of the mole ratio of oxides given by the formula mR:Al 2 O 3 :nP 2 O 5 :qSiO 2 wherein R represents at least one organic templating agent present in the intracrystalline pore system, m represents mole of R present and has a value between 0.02 to 0.3, n has a value of from 0.96 to 1.1, and q has a value of from 0.1 to 1.0 characterized by the x-ray diffraction pattern given in Table I below which comprises mixing a aluminum source, a silicon source, and phosphorous oxide and an organic template in a non-aqueous medium, heating and crystallizing the mixture in an autoclave, cooling the autoclave containing the reaction mixture to room temperature and separating the crystalline material, then washing with distilled water and drying the crystalline material, calcining the crystalline material to remove the organic material occluded in its pore to get porous crystalline silicoaluminophosphate molecular sieve.