Process for manufacturing MCM-22 family molecular sieves

A method of crystallizing 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 optionally at least one source of ions of trivalent element, said mixture having the following mole composition:
• Y:X2=10 to infinity
• H2O:Y=1 to 20
• OH−:Y=0.001 to 2
• M+:Y=0.001 to 2
• R:Y=0.001 to 0.34
• wherein Y is a tetravalent element X is a trivalent element, M is an alkali metal;
• and
• (b) treating said mixture to form said molecular sieve at crystallization conditions for less than 72 hr, wherein said crystallization conditions comprise a temperature in the range of from about 160° C. to about 250° C. and a weight hourly throughput of at least 0.001 hr−1.

A molecular sieve manufactured by a method comprising the step 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 optionally at least one source of ions of trivalent element, said mixture having the following mole composition:
• Y:X2=10 to infinity
• H2O:Y=1 to 20
• OH−:Y=0.001 to 2
• M+:Y=0.001 to 2
• R:Y=0.001 to 0.34
• wherein Y is a tetravalent element, X is a trivalent element, M is an alkali metal;
• (b) treating said mixture to form said molecular sieve at crystallization conditions, wherein said crystallization conditions comprise a temperature in the range of from about 165° C. to about 250° C., and crystallization time less than 72 hr;
• and
• (c) recovering said molecular sieve,
• wherein said molecular sieve is characterized by an X-ray diffraction pattern of as-synthesized said molecular sieve including d-spacing maxima at 12.4±0.25, 3.57±0.07 and 3.42±0.07 Angstroms and at least one peak between 26.6° and 29° (2θ).