Study of Preparation Conditions for 4A Zeolite Molecular Sieve from Natural Zeolite

4Azeolite molecular sieve was synthesized from natural zeolite.The effect of alkali solution and crystaillization conditions on synthesis of the zeolite molecular sieve was studied.The zeolite products were characterized by biological microscope and XRD.The natural zeolite was dissolved in 9%alkali solution at 60℃for 2h,and then aluminum was added to the solution before erystallization hydrothermally at 90 ℃ for 6h.Finally,the product was characterized by IR and SEM.It showed that under these conditions zeolite molecular sieve products was good erystallionity was obtained.