A kind of synthetic method of Y-type mesoporous zeolite

A synthesis method and technology of mesoporous zeolite, applied in the direction of crystalline aluminosilicate zeolite, octahedral crystalline aluminosilicate zeolite, etc., can solve the problem that Y-type mesoporous zeolite has not been synthesized, and achieve low equipment requirements, The effect of simple synthesis method

Active Publication Date: 2011-11-30
WENZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, Y-type mesoporous zeolites wi

Method used

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  • A kind of synthetic method of Y-type mesoporous zeolite
  • A kind of synthetic method of Y-type mesoporous zeolite
  • A kind of synthetic method of Y-type mesoporous zeolite

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0030] Take 25 mL of solution ①, add 3.0 mL of DM (manufactured by Guangzhou Demei Co., Ltd., the same below) and stir for 30 minutes, then add 5 mL of solution ②, stir for 1 hour, then add 6 mL of solution ③ and stir for 30 minutes, then transfer the mixture to The reaction kettle was sealed and reacted at 110° C. for 20 hours. The structural properties of the prepared mesoporous Y zeolite are shown in Table 1.

experiment example 2

[0032] Take 25mL of solution ①, add 3.0mL of DM and stir for 30 minutes, then add 5mL of solution ②, stir for 1 hour, then add 6mL of solution ③ and stir for 30 minutes, then transfer the mixture to a reaction kettle and seal it at 110°C for 36 hours. The structural properties of the prepared mesoporous Y zeolite are shown in Table 1.

experiment example 3

[0034] Take 25mL of solution ①, add 3.0mL of DM and stir for 30 minutes, then add 5mL of solution ②, stir for 1 hour, then add 6mL of solution ③ and stir for 30 minutes, then transfer the mixture to a reaction kettle and seal it at 110°C for 48 hours. The structural properties of the prepared mesoporous Y zeolite are shown in Table 1.

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Abstract

The invention discloses a synthetic method of Y type mesoporous zeolite. In the synthetic method, water glass is used as a silicon source; aluminum sulphate and sodium aluminate are used as aluminum sources; macromolecular surface active agent N, N-diethyl-N-hexadecyl-N-(3-methyl silane and propane) ammonium iodide is used as a templete agent; and Y zeolite which contains a mesoporous structure is synthesized by a traditional water heating method. According to the invention, the synthetic method is simple; the synthetic Y zeolite material has the microporous structure of a traditional molecular sieve and also has a large amount of mesoporous structures; thereby, the mesoporous structures as catalysts and carriers in heavy oil refining industry and synthetic industry of macromolecular finechemical have a wide application prospect.

Description

(1) Technical field [0001] The invention relates to a synthesis method of strongly acidic Y zeolite containing mesoporous structure. (2) Background technology [0002] Microporous zeolite molecular sieves are widely used in petroleum refining and fine chemical synthesis industries as solid acid catalysts or catalyst supports. For example, Y, Beta, and ZSM-5 zeolite molecular sieves exhibit excellent activity and selectivity in the isomerization of olefins. [0003] Although microporous zeolite molecular sieves have many advantages as catalysts, their small pore size (less than 1nm) has also become an important defect for their wide application as catalysts, especially when the size of reactant molecules exceeds the pores of microporous zeolite molecular sieves. This defect is more serious when the diameter is larger. Compared with traditional microporous zeolites, mesoporous molecular sieves (Al-MCM-41, SBA-15, etc.) have a large specific surface area, which means that the...

Claims

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Application Information

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IPC IPC(8): C01B39/24
Inventor 唐天地傅雯倩张磊柯清平
Owner WENZHOU UNIVERSITY
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