Microwave method for synthesizing nanometer silicate basic hole material

A nano-sized, microwave synthesis technology, applied in the direction of crystalline aluminosilicate zeolite, mercerized crystalline aluminosilicate zeolite, octahedral crystalline aluminosilicate zeolite, etc. Methods and other issues

Inactive Publication Date: 2006-02-08
朱广山
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, other nano-sized silicate-based porous materials such as mesoporous and microporous molecular sieves have not been reported by microwave synthesis methods.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of nano-sized X-type molecular sieve, the proportion of the reaction solution is 3.4SiO 2 : 1.0Al 2 o 3 : 1.12Na 2 O: 300H 2 O. Dissolve sodium metaaluminate in water first, after dissolving, add sodium hydroxide under stirring, after dissolving, add white carbon black under stirring. Stirring was continued for 30 minutes, and the resulting solution was treated with microwaves for 15 minutes, then cooled and separated, washed until neutral, and dried at 100°C. The frequency of the microwave is 2000MHz, 500 watts. Obtained product A1, which is a nano X-type molecular sieve with a size of 60nm.

Embodiment 2

[0036] A preparation method of nano-size X-type molecular sieve, except that the power of microwave is changed to 2000 watts, other is the same as embodiment 1, obtains product A2, is nano-size X-type molecular sieve, and its size is 40nm.

Embodiment 3

[0038] A preparation method of nano-sized X-type molecular sieve, except that the proportion of reaction solution is 4.0SiO 2 : 1.0Al 2 o 3 : 5.5Na 2 O: 200H 2 Except O, other is identical with embodiment one, obtains product A3, is nano X type molecular sieve, and size is 75nm.

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PUM

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Abstract

The invention relates to a microwave synthesizing process for nano-size silicate based poromeric material, which consists of dissolving aluminium source into water, charging silicon source while agitating, continuously agitating, carrying out microwave processing directly for 3-180 minutes to the reaction solution, microwave heating 3-30 minutes, crystallizing 1-8 days at 60-100 deg C, centrifugally separating, filtering, scouring, dry scouring to neutral, thus obtaining nano-size molecular sieve with adjustable particle size.

Description

technical field [0001] The invention relates to a preparation method of a nanometer-sized silicate-based pore material, which belongs to the preparation method of a pore-related material in the field of inorganic chemistry, in particular to a preparation method of a nanometer-sized silicate-based pore material. Background technique [0002] Silicate-based pore materials are pore materials mainly composed of microporous molecular sieves, mesoporous molecular sieves and other silicates. They can be widely used in catalysis, separation, ion exchange and other fields. Most of the products obtained by existing preparation technologies are For bulk materials above 1 μm, porous materials with such a particle size cannot effectively exert their unique pore characteristics, especially in the fields of catalysis and ion exchange. When porous materials are applied in the field of catalysis and ion exchange, it is expected to have the following characteristics: 1) Larger external surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/02C01B39/22C01B39/24C01B39/26
Inventor 朱广山裘式纶田景琦尹肖菊郭晓丹
Owner 朱广山
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