Template-free method for synthesizing hierarchical pore ZSM-5 zeolite molecular sieve from illite

A ZSM-5, zeolite molecular sieve technology, applied in the direction of crystalline aluminosilicate zeolite, borocarbonane silicone crystalline aluminosilicate zeolite, etc., can solve the problems of synthesis pollution, long synthesis cycle, and high synthesis cost, and achieve synthesis time. The effect of reducing, enriching silanol groups, and reducing synthesis cost
CN109336129AActive Publication Date: 2019-02-15YANBIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
YANBIAN UNIV
Publication Date
2019-02-15

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Abstract

The invention discloses a template-free method for synthesizing a hierarchical pore ZSM-5 zeolite molecular sieve from illite. The method comprises the following steps: taking illite as a raw materialto obtain mesoporous silicon dioxide active silicon slag through acid pickling, wherein the purity of the active silicon slag is greater than 98%; and carrying out a reaction on the active silicon slag generated by pickling illite as a silicon aluminum source in a condition of adding an alkali source and regulating a rule ratio to obtain a hierarchical pore ZSM-5 zeolite molecular sieve catalyst.The method has the advantages of being short in synthetic period, low in synthetic cost, low in synthesized pollutant, high in catalytic ability of synthesized product and the like.
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Description

technical field

[0001] The invention relates to the field of inorganic solid catalysts, in particular to a template-free method for synthesizing hierarchically porous ZSM-5 zeolite molecular sieves using illite as a raw material. Background technique

[0002] ZSM-5 zeolite molecular sieve can be used as a highly active solid acid catalyst and catalyst carrier due to its unique pore structure, high specific surface area and good thermal stability. It is not only widely used in traditional chemical production such as petroleum processing and petrochemical industry, Moreover, it has broad application prospects in emerging green chemical fields such as clean energy processing, environmental governance engineering, and biomass utilization.

[0003] At present, the synthesis of traditional ZSM-5 molecular sieves mainly uses industrial chemical raw materials, by adding organic templates (such as tetrapropylammonium hydroxide, or tetrapropylammonium bromide) as structure-directing a...

Claims

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