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Method for preparing meso-porous material from natural mordenite

A technology of mordenite and mesoporous materials, applied in chemical instruments and methods, crystalline aluminosilicate zeolite, aluminum silicate, etc., can solve the problems of limited primary processing, high performance, high added value and less, and achieve low cost , The production process and its equipment are simple, and the effect of acid and alkali resistance is good.

Active Publication Date: 2016-09-21
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic research on zeolite resources is still mainly limited to primary processing, and there are few research reports on the utilization of high performance and high added value

Method used

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  • Method for preparing meso-porous material from natural mordenite
  • Method for preparing meso-porous material from natural mordenite
  • Method for preparing meso-porous material from natural mordenite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The method for preparing mesoporous material by utilizing natural mordenite comprises the following steps:

[0045] Step 1, raw material pretreatment:

[0046] (1) Crushing and screening the natural mordenite, taking the natural mordenite granules with a particle size of less than or equal to 200 meshes;

[0047] (2) calcining the natural mordenite at 850° C. for 3 hours;

[0048](3) Soak the calcined natural mordenite particles in 5% HCl for 24 hours, filter, wash until neutral, and dry to obtain natural mordenite particles with internal pores removed;

[0049] Step 2, Aging:

[0050] (1) by the quality of the natural mordenite particle of clearing internal channel: the quality of ammonium fluoride: the quality of sodium hydroxide: the quality=10:10:1.6:10 of tri-n-butylamine, get the natural mordenite of clearing internal channel Granules, ammonium fluoride solution, sodium hydroxide solution and tri-n-butylamine solution, stirred evenly to obtain a mixture;

[00...

Embodiment 2

[0063] The method for preparing mesoporous material by utilizing natural mordenite comprises the following steps:

[0064] Step 1, raw material pretreatment:

[0065] (1) Crushing and screening the natural mordenite, taking the natural mordenite granules with a particle size of less than or equal to 200 meshes;

[0066] (2) calcining natural mordenite at 800°C for 3h;

[0067] (3) Soak the calcined natural mordenite particles in 6% HCl for 24 hours, filter, wash until neutral, and dry to obtain natural mordenite particles with internal pores removed;

[0068] Step 2, Aging:

[0069] (1) by the quality of the natural mordenite particle of clearing internal channel: the quality of ammonium fluoride: the quality of sodium hydroxide: the quality=10:11:2.4:13 of tri-n-butylamine, get the natural mordenite of clearing internal channel Granules, ammonium fluoride solution, sodium hydroxide solution and tri-n-butylamine solution, stirred evenly to obtain a mixture;

[0070] Wherei...

Embodiment 3

[0080] The method for preparing mesoporous material by utilizing natural mordenite comprises the following steps:

[0081] Step 1, raw material pretreatment:

[0082] (1) Crushing and screening the natural mordenite, taking the natural mordenite granules with a particle size of less than or equal to 200 meshes;

[0083] (2) calcining the natural mordenite at 850° C. for 2 hours;

[0084] (3) Soak the calcined natural mordenite particles in 7% HCl for 20 hours, filter, wash until neutral, and dry to obtain natural mordenite particles with internal pores removed;

[0085] Step 2, Aging:

[0086] (1) by the quality of the natural mordenite particle of clearing internal channel: the quality of ammonium fluoride: the quality of sodium hydroxide: the quality=10:8:3.2:11 of tri-n-butylamine, get the natural mordenite of clearing internal channel Granules, ammonium fluoride solution, sodium hydroxide solution and tri-n-butylamine solution, stirred evenly to obtain a mixture;

[00...

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Abstract

The invention discloses a method for preparing a meso-porous material from natural mordenite, and belongs to the field of mineral processing. The method comprises the following steps: 1, breaking natural mordenite, calcining the broken natural mordenite, immersing the calcined natural mordenite in HCl, and drying the immersed calcined natural mordenite to obtain internal tunnel cleaned natural mordenite particles; 2, mixing the natural mordenite particles, an ammonium fluoride solution, a sodium hydroxide solution and a tri-n-butylamine solution, and carrying out constant-temperature water bath ageing; 3, crystallizing the obtained aged solution; and 4, washing the obtained crystallized solution until the crystallized solution is neutral, carrying out pumping filtration drying, and calcining the obtained material to prepare the meso-porous material. The method allows the meso-porous material with good alkalinity or acidity to be prepared from zeolite; and the method has the advantages of simple production process and device, high product yield, low cost, and easy realization of industrial production.

Description

technical field [0001] The invention belongs to the field of mineral processing, and in particular relates to a method for preparing mesoporous materials by using natural mordenite. Background technique [0002] According to the definition of the International Union of Pure and Applied Chemistry (IUPAC), inorganic porous materials can be divided into microporous materials with a pore diameter of less than 2 nm; mesoporous materials with a pore diameter of 2 to 50 nm; and macroporous materials with a pore diameter greater than 50 nm. Inorganic porous materials have controllable pore size and dimensions, rich chemical structures, and properties such as catalysis, adsorption, and ion exchange. Therefore, inorganic porous materials have been widely used in high-tech fields such as biomedicine, environment, energy, and optoelectronic materials. Attention and wide application, especially the application of nano-absorbing materials packaged with mesoporous materials with different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/02C01B33/26
CPCC01B33/26C01B39/026C01P2002/72C01P2004/03
Inventor 马志军张琪翁兴媛苏文贵王俊策
Owner LIAONING TECHNICAL UNIVERSITY
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