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Preparation method of micro-mesoporous structure analcime

A mesoporous structure, analcite technology, applied in the direction of crystalline aluminosilicate zeolite, etc., can solve the problems of low utilization rate of raw materials, no synthesis rules, and high requirements for reaction conditions, achieve good market application and promotion value, and reasonable design. Effect

Active Publication Date: 2020-07-10
TAIYUAN UNIV OF TECH
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Problems solved by technology

In the existing synthesis method, the reaction conditions are high, the raw material utilization rate is low, and there is no synthesis rule. This technology is still under scientific research.

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Embodiment Construction

[0055] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0056] A kind of preparation method of multi-stage pore analcime, the chemical substance material used is: sodium metaaluminate, sodium hydroxide, deionized water, white carbon black, asymmetric gemini quaternary ammonium salt cationic surfactant, and its preparation dosage is as follows : in grams, milliliters, centimeters 3 as a unit of measurement

[0057] Sodium metaaluminate: NaAlO 2 0.630g±0.001g

[0058] Sodium Hydroxide: NaOH 0.480g ±0.001g

[0059] Silica: SiO 2 6.000g±0.001g

[0060] Unsymmetrical Gemini Quaternary Ammonium Salt Cationic Surfactant: C 33 h 72 N 2 Br 2 12.340g±0.001g

[0061] Deionized water: H 2 O 12.25mL±0.01mL

[0062] Argon: Ar 100000cm 3 ±100cm 3

[0063] C 33 h 72 N 2 Br 2 : Unsymmetrical Gemini quaternary ammonium salt cationic surfactant, its unique molecular structure formula is as follow...

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Abstract

The invention discloses a preparation method of microporous-mesoporous analcite, wherein the method includes the steps of: with white carbon black, sodium metaaluminate and NaOH as raw materials, an asymmetry Gemini quaternary ammonium salt cationic surfactant as a guiding agent and deionized water as a solvent and a washing agent, performing a crystallization reaction in a reaction kettle, and performing quenching, separation, washing, vacuum drying and high temperature roasting to prepare the hierarchical porous analcite, thus increasing purity and enlarging application range of the hierarchical porous analcite. The preparation method has advanced technologies and accurate and detailed data. The product is a white powder and can reach 99.8% in purity. The method is an advanced process for preparing the hierarchical porous analcite.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, in particular to a method for preparing analcime with micro-mesoporous structure. Background technique [0002] Analcime is a microporous molecular sieve with ANA topological structure and microporous three-dimensional channels. It is a common by-product of aluminosilicate zeolite synthesis systems, but the pure phase can also be synthesized hydrothermally or without organic templates. Studies have shown that analcime has great development value in ion exchange, wastewater treatment and catalytic applications. However, its pore size is small, the pores are intricate, and the diffusion resistance of macromolecular reactants in the pores is relatively large, which is not conducive to the material transport in the reaction. Carbon deposition and deactivation limit the practical application of single microporous analzeite, so the preparation of hierarchically porous analzeite has attract...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B39/04
CPCC01B39/04C01P2002/72C01P2006/17C01P2006/80
Inventor 王诗瑶谢鲜梅贺博田韧
Owner TAIYUAN UNIV OF TECH
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