Invention Grant
- Patent Title: MCM-22 family molecular sieve composition
- Patent Title (中): MCM-22家族分子筛组成
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Application No.: US11657192Application Date: 2007-01-24
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Publication No.: US07846418B2Publication Date: 2010-12-07
- Inventor: Wenyih Frank Lai , Robert Ellis Kay
- Applicant: Wenyih Frank Lai , Robert Ellis Kay
- Applicant Address: US TX Houston
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Houston
- Agent Darryl M. Tyus; Xiaobing Feng
- Main IPC: C01B39/46
- IPC: C01B39/46 ; B01J29/06 ; C10G47/04

Abstract:
An MCM-22 family molecular sieve having an X-ray diffraction pattern of the as-synthesized MCM-22 family 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). The peak between 26.6° to 29° (2θ) has a two theta (2θ) of about 26.9°. A method of manufacturing an MCM-22 family molecular sieve, said method comprising the steps of (a) combining at least one silicon source, at least one source of alkali metal hydroxide, at least one directing-agent (R), water, and optionally one aluminum source, to form a mixture having the following mole composition: Si:Al2=10 to infinity H2O:Si=1 to 20 OH−:Si=0.001 to 2 M+:Si=0.001 to 2 R:Si=0.001 to 0.34 wherein M is an alkali metal; (b) treating said mixture at crystallization conditions for less than 72 hr to form a treated mixture having said MCM-22 family molecular sieve, wherein said crystallization conditions comprises a temperature range from about 160° C. to about 250° C.; and (c) recovering said MCM-22 family molecular sieve.
Public/Granted literature
- US20070191656A1 MCM-22 family molecular sieve composition Public/Granted day:2007-08-16
Information query
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