Process for preparing a crystalline zeolite

Details Process for preparing a crystalline zeolite Process for preparing a crystalline zeolite

B - Operations, Transporting

01

J

B01J 29/04 (2006.01) B01J 20/18 (2006.01) C01B 39/02 (2006.01)

Patent

CA 2065187

T 5348 A B S T R A C T PROCESS FOR PREPARING A CRYSTALLINE ZEOLITE Process for preparing a crystalline zeolite having a molar composition expressed by the formula: (0.9-1.1)M2/n0.X2O3.(5-20)SiO2.(0.7-0.02)trioxane.(0-10)H2O wherein M is an alkali or alkaline earth metal ion having a valency n and X is at least one of Al, Fe or Ga. The process comprises maintaining an aqueous mixture of a source of Si, a source of M, a source of X and trioxane at elevated temperature until the crystalline zeolite is formed. In the mixture the various components are initially present in the following molar ratios: X2O3 : SiO2 = 0.06-0.12 H2O : SiO2 = 5-30 OH : SiO2 = 0.05-0.6 trioxane: SiO2 = 0.1-2.0 M2/nO : SiO2 = 0.15-0.35 This zeolite is suitable as catalyst and catalyst carrier and/or absorbent means. C13/T5348FF

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