Patent ID: 7560092
Filing Date: 2009-07-14
Classification: C01B

Abstract:
1. A method for preparing an aluminosilicate polymer, comprising the following steps: a) treating a mixed aluminum and silicon alkoxide only comprising hydrolyzable functions, or a mixed aluminum and silicon precursor resulting from the hydrolysis of a mixture of aluminum compounds and silicon compounds only comprising hydrolyzable functions, with an aqueous alkali, in the presence of silanol groups, the aluminum concentration being maintained at between 1.5×10 (b) stirring the mixture resulting from step a) at ambient temperature of between 15° C. and 35° C. in the presence of silanol groups long enough to form the aluminosilicate polymer; and directly after step (b) (c) eliminating the byproducts formed during steps a) and b) from the reaction medium.