Co-crystallization molecular screen and preparation method and application thereof

A technology of co-crystallized molecular sieves and molecular sieves, which is applied in the fields of molecular sieves and base exchange compounds, chemical instruments and methods, and inorganic chemistry. high degree of effect
CN1689972AInactive Publication Date: 2005-11-02DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2005-11-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The process of preparing cocrystallized molecular sieve of ZSM-35 accounting for 0-100 wt% and MCM-22 adopts the mixture of hexamethylene imine and cyclohexylamine as template agent. Compound of silicon and aluminum, hydroxide of alkali metal, hexamethylene imine, cyclohexylamine and deionized water as materials are crystallized at 90-200 deg.c for some period and reacted completely to synthesize the molecular sieve hydrothermally. The synthesized molecular sieve is catalyst used widely in the catalytic reaction of converting hydrocarbons, such as hydrocarbon isomerization and aromatization, etc.
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Description

technical field

[0001] The invention relates to a co-crystal molecular sieve.

[0002] The present invention also relates to a preparation method of the above-mentioned co-crystallized molecular sieve.

[0003] The present invention also relates to the use of the above-mentioned crystalline molecular sieves. Background technique

[0004] ZSM-35 molecular sieve (USP 4 016 245) is composed of two pore systems of ten-membered ring and eight-membered ring, and has the properties of isomerization, aromatization, polymerization and cracking in the catalytic conversion of hydrocarbons. The templating agents selected during preparation are generally organic amines, such as diethylamine and derivatives thereof, hexamethyleneimine (USP 4 925 548), a mixture of organic substances such as hexamethyleneimine (CN00110356.3 ) and cyclohexylamine (CN01123880.1), etc.

[0005] MCM-22 molecular sieve (USP 4 954 325) is a molecular sieve containing two non-intersecting pore systems, with du...

Claims

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