Patent ID: 9168516
Filing Date: 2015-10-27
Classification: B01J,C01B,C07C,Y02P

Abstract:
1. A solvothermal synthesis process of SAPO molecular sieves, wherein the main steps are as following: a) an organic amine, an aluminum source, a phosphorus source, a silicon source, and water are mixed in a molar ratio of 6-30:1:0.5-5:0.01-1.0:0.1-15, to obtain an initial mixture for preparing the SAPO molecular sieves, wherein the molar ratio of water to the organic amine is less than 2.0; b) the initial mixture obtained in the step a) is maintained at 30-60° C. and aged with stirring for not more than 24 hours, to obtain an initial gel; c) the initial gel obtain in the step b) is crystallized at 150-250° C. for 0.5-15 days.