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Production of nano-catalyst

A nano-catalyst and mesoporous material technology, applied in the field of nano-catalyst preparation, can solve the problems of high cost, easy to raise dust, difficult to process, hazards, etc., to overcome easy to raise dust, difficult to process, large specific surface, and easy to be inhaled to human body damage Healthy effect

Active Publication Date: 2009-08-05
CHINA TOBACCO ANHUI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the above technologies, some use precious metals, which are costly; some use powder nanomaterials, which are easy to raise dust and difficult to process, and are easy to be inhaled and cause harm to the human body.

Method used

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  • Production of nano-catalyst
  • Production of nano-catalyst
  • Production of nano-catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: in reaction tank, add CuSO 4 .H 2 O 80mol, MnSO 4 .H 2 O 160mol and 500 kg of deionized water, heated while stirring, heated to 80°C, added 42 kg of 40-80 mesh activated carbon, kept stirring for 1 hour, slowly added 90L NaOH solution (w / w, 25%) dropwise, and continued to stir 10min, filter while hot, wash with hot deionized water until neutral, dry the resulting solid at 110°C to constant weight, then calcinate the solid at 200°C for 3h, sieve after cooling to get 40-80 mesh particles, then .

Embodiment 2

[0022] Embodiment 2: except adding CuSO 4 .H 2 O 80mol, MnSO 4 .H 2 Except O 80mol, all the other are identical with embodiment 1.

Embodiment 3

[0023] Embodiment 3: except adding CuSO 4 .H 2 O 80mol, MnSO 4 .H 2 Except O 240mol, all the other are identical with embodiment 1.

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Abstract

The invention discloses a preparation method of a nano-adsorbent. Add copper sulfate and manganese sulfate into sufficient deionized water, heat to 80-90°C, add mesoporous materials, keep stirring for 1-5 hours, and then add strong alkali Solution, continue to stir for 10-60min, filter while hot, wash the filter cake until neutral, dry the filter cake at 70°C-150°C to constant weight, calcinate at 150-500°C for 2-6 hours, cool to At room temperature, 40-80 mesh particles can be obtained by sieving, and the molar ratio of copper sulfate, manganese sulfate, and mesoporous material is 1:1-5:3-8. Compared with the prior art, the present invention can selectively absorb and intercept or catalytically convert harmful substances by assembling copper sulfate and manganese sulfate in mesoporous solids, and at the same time overcome the problem of easy dusting and difficult processing due to the direct use of nano-powders It is easy to be inhaled and damage the health of the human body.

Description

Technical field: [0001] The invention belongs to the technical field of a preparation method of a nanometer catalyst, in particular to the technical field of a nanometer catalyst used for removing or reducing harmful substances in tobacco. Background technique: [0002] Nanoscience is an emerging science, nanotechnology is the leading technology in the 21st century, and nanomaterials are new materials in the 21st century. Due to its special structure, nanomaterials have many different physical and chemical properties from traditional materials and have a wide range of application prospects. An important field of application of nanomaterials is as catalysts. It is expected that nanoparticle catalysts may play a major role in catalytic reactions in the 21st century. Compared with ordinary catalysts, the catalytic efficiency of nanoparticle catalysts is greatly increased due to the increase of surface active sites, the increase of chemical reaction contact surface, and the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889A24B15/28
Inventor 舒俊生张悠金田振峰方智勇
Owner CHINA TOBACCO ANHUI IND CO LTD
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