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Method for microwave synthesis of ZSM-5 molecular sieve through illite

A microwave synthesis, ZSM-5 technology, applied in molecular sieve catalysts, chemical instruments and methods, crystalline aluminosilicate zeolites, etc., can solve the problems of energy consumption, large pollution, etc. Effect

Inactive Publication Date: 2017-06-13
YANBIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for synthesizing ZSM-5 molecular sieve by microwave from illite in view of the deficiencies in the above-mentioned prior art, which solves the problem that s

Method used

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  • Method for microwave synthesis of ZSM-5 molecular sieve through illite
  • Method for microwave synthesis of ZSM-5 molecular sieve through illite
  • Method for microwave synthesis of ZSM-5 molecular sieve through illite

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Embodiment 1

[0025] The method for microwave synthesis of ZSM-5 molecular sieves from illite, the specific steps are as follows:

[0026] (1) Mix 10g of illite with 20g of sodium carbonate particles, and activate by calcining at 950°C for 5 hours to obtain alkali-fired illite;

[0027] (2) 10g alkali-burned illite is mixed with 100ml molar concentration of hydrochloric acid solution of 6mol / L, and acidification is carried out;

[0028] (3) Mix 10 g of illite obtained in step (2) with 10 ml of tetrapropylammonium hydroxide and an appropriate amount of distilled water, and crystallize in microwave at 130° C. for 2 hours to obtain a crystallized product, which is suction-filtered, washed, and dried After drying, 9.24 g of ZSM-5 molecular sieve was obtained.

[0029] Combined with the accompanying drawings, figure 2 Used to characterize the molecular sieve crystal structure, by figure 2 It can be seen that the product contains ZSM-5 molecular sieve (diffraction peak position 2θ is 7.96°, ...

Embodiment 2

[0031] The conditions were the same as in Example 1, except that the template was ethylenediamine, and 9.37 g of ZSM-5 molecular sieves were obtained.

Embodiment 3

[0033] The conditions were the same as in Example 1, except that the template was industrial molecular sieves, and 10.12 g of ZSM-5 molecular sieves were obtained.

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Abstract

The invention discloses a method for microwave synthesis of a ZSM-5 molecular sieve through illite and belongs to the technical field of inorganic nonmetallic materials. The method comprises the following steps: (1) mixing and activating illite and alkali, thereby obtaining alkali burned illite; (2) mixing the alkali burned illite with an acid solution and performing acidizing treatment; (3) mixing the preprocessed illite with a template agent and distilled water, and performing microwave crystallization for 5min-2h at 100-150 DEG C, thereby obtaining a crystallized product; and filtering, washing and drying the crystallized product, thereby obtaining the ZSM-5 molecular sieve. The method can solve the problem of additional silicon source and aluminum source required by the process of synthesizing the zeolite molecular sieve through illite, and can overcome the defects of high energy consumption and serious pollution of the traditional hydro-thermal synthesis method.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials, and in particular relates to a method for synthesizing ZSM-5 molecular sieves from illite by microwave. Background technique [0002] ZSM-5 molecular sieve has the advantages of unique pore structure, strong acidity, good thermal stability and hydrothermal stability, and shows good catalytic performance in catalytic cracking, alkylation, disproportionation, isomerization and other reactions of hydrocarbons. The performance has been widely concerned by researchers at home and abroad. ZSM-5 molecular sieves are generally prepared by mixing templates, silicon sources, aluminum sources, and mineralizers. The traditional preparation method is hydrothermal synthesis. This method can prepare ZSM-5 molecular sieves with high crystallinity and uniform appearance, but at the same time It has the disadvantages of high energy consumption and environmental pollution, while the microw...

Claims

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Application Information

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IPC IPC(8): C01B39/40B01J29/40
CPCB01J29/40C01B39/40C01P2002/72C01P2004/03
Inventor 姜男哲孟万石慧男刘新辉
Owner YANBIAN UNIV
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