| abstract |
The invention discloses a method for simultaneously synthesizing two particle size molecular sieves. The method includes: (1) preparing a first solution, which contains water and a silicon source; the silicon source is a silicate compound; (2) preparing a second solution, which contains a first organic template T1, a second organic template Template agent T2 and aluminum source; (3) pass the first solution and the second solution into the colloid mill in two ways, and after the residence time, the material to be crystallized is obtained; (4) the material to be crystallized is directly crystallized, After crystallization, the material is left to stand for stratification. The upper layer is small particle size molecular sieve, the middle layer is liquid, and the bottom layer is large particle size molecular sieve. After separation, small particle size molecular sieve and large particle size molecular sieve are obtained respectively. The method of the invention has simple and convenient synthesis steps, and can simultaneously obtain two molecular sieves with different particle sizes. |