Method for modifying molecular sieve

A molecular sieve, hydrogen-type molecular sieve technology, applied in the direction of crystalline aluminosilicate zeolite, can solve the problems of complicated operation, intermittent operation, affecting the performance of use, etc., and achieve the effect of improving processing efficiency, avoiding high temperature burning, and improving utilization rate
CN102464327AInactive Publication Date: 2012-05-23CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2012-05-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for modifying a molecular sieve, which comprises the steps of: firstly, extracting an organic template agent in molecular sieve raw powder containing the organic template agent on an extraction device by using an organic agent; and then carrying out ion exchange on the extraction device by using an acid solution, and translating into a hydrogen type molecular sieve, wherein no roasting step exists in the method of modifying the molecular sieve. The method provided by the invention has the advantages of high degree of crystallization, high modifying efficiency, no pollution and the like.
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Description

technical field

[0001] The invention relates to a method for modifying molecular sieves. More specifically, the present invention relates to a method for removing the organic template agent from the synthesized raw powder of the molecular sieve and converting it into a hydrogen-type molecular sieve. Background technique

[0002] Molecular sieves are an important member of crystalline materials. Many kinds of molecular sieves have been discovered, such as zeolite A, ZSM series, β, X, Y, SAPO series and other microporous molecular sieves and MCM-41 and other medium pore molecular sieves.

[0003] Molecular sieves are widely used in the fields of adsorption, separation, catalysis, ion exchange, and host-guest assembly due to their regular pore structure, large surface area, large number of exchangeable ions, and rich morphology. Generally speaking, the synthesis process of most molecular sieves requires the introduction of organic substances as templates, such as organic amine...

Claims

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