Mole cular sieve with composite structure and preparing method thereof

A technology of composite molecular sieve and composite structure, which is applied in the field of composite molecular sieve and its preparation, and can solve problems such as not very ideal
CN1552625AInactive Publication Date: 2004-12-08CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2004-12-08
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A composite molecular sieve with TON and MFI structures is prepared in static crystallizing condition. In the procedure of preparing gel, less crystal seeds and salt are added. The Si / Al ratio on its crystal lattice is greater than 50.
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Description

technical field

[0001] The invention relates to a molecular sieve with a composite structure and a preparation method thereof. More specifically, the invention provides a molecular sieve with a composite structure having the structural characteristics of both TON and MFI molecular sieves. Background technique

[0002] Molecular sieves are important members of crystalline materials and have regular pore structure crystal structures (which can be characterized by XRD). Channels and cavities of crystals can be characterized in different ways. Many kinds of molecular sieves have been found, such as zeolite A, ZSM series, Ξ², X, Y, SAPO series and other microporous molecular sieves and MCM-41 and other medium pore molecular sieves. These natural or synthetic crystalline molecular sieves are widely used in the fields of catalysis and adsorption. The adsorption and catalytic properties of various molecular sieves are related to their pore and pore sizes, that is to say, the applic...

Claims

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