Method of producing zeolite beta

摘要

Zeolite beta is prepared by reacting a granular amorphous aluminosilicate, prepared by continuously reacting an aqueous solution of an alkali metal silicate and an aqueous solution containing aluminum for a specific time at a temperature of 0 DEG to 55 DEG C. and pH of 5 to 9 the following at molar ratios -SiO2/Al2O3 10:1 DIFFERENCE 200:1 and -M2O/Al2O3 0.8 DIFFERENCE 1.2 - where M means an alkali metal contacting it with alkali metal hydroxide tetraethylammonium compound and water at molar ratios of -SiO2/Al2O3 10:1 DIFFERENCE 200:1 and -M2O/SiO2 0.01 DIFFERENCE 1, -H2O/SiO2 8 DIFFERENCE 30 and -R2O/SiO2 0.05 DIFFERENCE 0.7 - where R is tetraethylammonium, for 24 to 120 hours at 70 DEG to 160 DEG C. to crystallize.