Method for preparing MCM-22, molecular sieve

A technology of MCM-22 and synthesis method, which is applied in the field of synthesis of MCM-22 molecular sieves, can solve problems that have not been reported, and achieve the effect that the method is simple and beneficial to industrial production and application
CN1686801AInactive Publication Date: 2005-10-26EAST CHINA NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EAST CHINA NORMAL UNIV
Publication Date
2005-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a method for synthesizing MCM-22 molecular sieve whose grain size can be effectively controlled by using hexamethylene imine (HMI) and piperidine (PI) as mixed template agent. Said method includes the following steps: uniformly mixing aluminium source, silicon source, alkali source, template agent and water to obtain a colloidal material, then making it undergo the processes of hydrothermal crystalizing, filtering, washing, drying and roasting so as to obtain the invented product.
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Description

technical field

[0001] The present invention relates to a kind of synthetic method of MCM-22 molecular sieve, exactly, relate to a kind of MCM-22 that uses hexamethyleneimine (HMI) and piperidine (PI) as mixed template to synthesize grain size and can effectively control. A method for 22 molecular sieves belongs to the technical field of inorganic chemical synthesis. Background technique

[0002] Molecular sieves with MWW structure are a class of molecular sieves with sinusoidal 10-membered ring network pore system, 12-membered ring cavity and supercage pore system structure (Science, 1994, 264: 1910). The catalytically active aluminum atoms are introduced into the framework of MWW molecular sieves to form MCM-22 molecular sieves (US4,954,325). Due to the special pore structure, as an acidic catalytic active component, MCM-22 molecular sieve exhibits excellent catalytic properties such as catalytic cracking (US 4,983,276), olefin and benzene alkylation (...

Claims

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