Patent ID: 7799316

Claim:
A method of manufacturing a molecular sieve of the MCM-22 family, said method comprising the steps of: (a) providing a mixture comprising at least one source of ions of tetravalent element, at least one source of alkali metal hydroxide, at least one directing-agent (R), water, and at least one source of ions of trivalent element, said mixture having the following mole composition: Y:X 2 = 15 to 50 H 2 O:Y = 5 to 15 OH − :Y = 0.1 to 0.3 M + :Y = 0.1 to 0.3 R:Y = 0.1 to 0.34 wherein Y is a tetravalent element, X is a trivalent element, M is an alkali metal; (b) treating said mixture at crystallization conditions for less than 72 hr to form a treated mixture comprising said molecular sieve, wherein said crystallization conditions comprise a temperature in the range of from about 160° C. to about 250° C.; and (c) recovering said molecular sieve.