| 摘要 |
A method of crystallizing a crystalline molecular sieve having a pore size in the range of from about 2 to about 19 �, said method comprising the steps of (a) providing a mixture comprising at least one source of ions of tetravalent element (Y), at least one hydroxide source (OH-), and water, said mixture having a solid-content in the range of from about 15 wt. % to about 50 wt. %; and (b) treating said mixture to form the desired crystalline molecular sieve with stirring at crystallization conditions sufficient to obtain a weight hourly throughput from about 0.005 to about 1 hr-1, wherein said crystallization conditions comprise a temperature in the range of from about 200� C. to about 500� C. and a crystallization time less than 100 hr. |
