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Shell powder-based porous high-temperature-resistant material as well as preparation method and application thereof

A technology of shell powder and high temperature resistance, which is applied in the field of porous high temperature materials, can solve the problems of inability to achieve continuous purification, adsorption, inability to continuously remove harmful gases, and the adsorption performance needs to be improved, and achieves high strength and good thermal shock resistance. , the effect of high porosity

Pending Publication Date: 2022-03-18
安徽世倾环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing shell powder materials have low specific surface area and low porosity, and the adsorption performance needs to be improved. When the shell powder material reaches adsorption saturation, it cannot continue to remove harmful gases, and cannot achieve continuous purification and adsorption effects.

Method used

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  • Shell powder-based porous high-temperature-resistant material as well as preparation method and application thereof
  • Shell powder-based porous high-temperature-resistant material as well as preparation method and application thereof
  • Shell powder-based porous high-temperature-resistant material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of a shell powder-based porous high-temperature-resistant material, comprising the following steps:

[0032] (1) Add ferric nitrate, bismuth nitrate, and chloroplatinic acid into deionized water, stir to dissolve, add cetyltrimethylammonium bromide, and stir in a water bath at 60°C for 3 hours to obtain an active precursor solution; the soluble The dosage ratio of iron salt, soluble bismuth salt, chloroplatinic acid, deionized water and cetyltrimethylammonium bromide is 0.1mol: 0.1mol: 0.01mol: 200mL: 3g;

[0033] (2) Weigh 80 parts of shell powder, 5 parts of activated carbon, 3 parts of aluminum dihydrogen phosphate, 3 parts of active precursor solution, 2 parts of polyvinyl alcohol aqueous solution with a mass fraction of 1%, and 1 part of light wax oil in order by mass parts ;

[0034] (3) After uniformly mixing the shell powder, activated carbon, and aluminum dihydrogen phosphate, mechanical ball milling until the average particle size is ≥ 60...

Embodiment 2

[0038] A preparation method of a shell powder-based porous high-temperature-resistant material, comprising the following steps:

[0039] (1) Add ferric chloride, bismuth chloride, and chloroplatinic acid into deionized water, stir and dissolve, add polyvinylpyrrolidone, and stir in a water bath at 60°C for 5 hours to obtain an active precursor solution; the soluble iron salt, soluble bismuth The dosage ratio of salt, chloroplatinic acid, deionized water and structure directing agent is 0.1mol: 0.1mol: 0.02mol: 200mL: 4g;

[0040] (2) Weigh in turn 85 parts of shell powder, 10 parts of activated carbon, 4 parts of aluminum tripolyphosphate, 5 parts of active precursor solution, 3.5 parts of polyvinyl alcohol aqueous solution with a mass fraction of 6%, and 5.5 parts of heavy wax oil ;

[0041] (3) After uniformly mixing the shell powder, activated carbon, and aluminum tripolyphosphate, mechanical ball milling until the average particle size is ≥ 600 mesh, to obtain the mixed p...

Embodiment 3

[0045] A preparation method of a shell powder-based porous high-temperature-resistant material, comprising the following steps:

[0046] (1) Add ferric nitrate, bismuth acetate, and chloroplatinic acid into deionized water, stir and dissolve, add a structure-directing agent, and stir in a water bath at 60°C for 6 hours to obtain an active precursor solution; the soluble iron salt, soluble bismuth salt, The dosage ratio of chloroplatinic acid, deionized water and cetyltrimethylammonium bromide is 0.1mol: 0.1mol: 0.03mol: 200mL: 5g;

[0047](2) Weigh 90 parts of shell powder, 15 parts of activated carbon, 5 parts of aluminum metaphosphate, 7 parts of active precursor solution, 5 parts of polyvinyl alcohol aqueous solution with a mass fraction of 10%, and 10 parts of light wax oil in order by mass parts;

[0048] (3) After uniformly mixing the shell powder, activated carbon and aluminum metaphosphate, mechanical ball milling until the average particle size is ≥ 600 mesh, to obtai...

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Abstract

The invention discloses a shell powder-based porous high-temperature-resistant material as well as a preparation method and application thereof. The shell powder-based porous high-temperature-resistant material is prepared from the following raw materials in parts by mass: 80-90 parts of shell powder, 5-15 parts of activated carbon, 3-5 parts of aluminum phosphate, 3-7 parts of an active precursor solution, 2-5 parts of a polyvinyl alcohol aqueous solution and 1-10 parts of liquid paraffin. The preparation method of the active precursor solution comprises the following steps: dissolving soluble ferric salt, soluble bismuth salt and chloroplatinic acid in deionized water, adding a structure-directing agent, and reacting at 60 DEG C for 3-6 hours; the preparation method comprises the following steps: (1) mixing the shell powder, the activated carbon and the aluminum phosphate, and mechanically ball-milling; (2) continuously adding the active precursor solution, a polyvinyl alcohol aqueous solution and liquid paraffin, uniformly stirring to prepare a biscuit, and drying; and (3) sintering the dried blank b to obtain the product. The prepared porous high-temperature material has the advantages of high strength, high catalytic activity, high porosity, high specific surface area, good thermal shock resistance, low sintering temperature and the like, and can be used as a high-temperature flue gas filtering material and a vehicle tail gas purification material.

Description

technical field [0001] The invention belongs to the technical field of porous high-temperature materials, and in particular relates to a shell powder-based porous high-temperature-resistant material and its preparation method and application. Background technique [0002] Smoke is a mixture of gas and smoke, which is the main cause of air pollution in residential areas. Its main pollutants include sulfur dioxide, carbon monoxide, hydrocarbons, and nitrogen oxides. Smoke includes fuel ash, coal particles, oil droplets, and pyrolysis product etc. Automobile exhaust is the exhaust gas produced during the operation of automobiles. Its main pollutants are solid suspended particles, carbon monoxide, hydrocarbons, nitrogen oxides, lead, and sulfur oxides. Carbon monoxide: Carbon monoxide has a strong affinity with hemoglobin in human red blood cells. Its affinity is 250 times stronger than that of oxygen. After affinity, carboxyhemoglobin is formed, thereby weakening the function ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/13C04B33/24C04B38/06B01D53/02B01D53/92B01J20/20B01J20/28
CPCC04B33/132C04B33/1328C04B33/131C04B33/1305C04B33/24C04B38/068B01J20/20B01J20/28054B01J20/28011B01D53/02B01D53/92B01D2258/012B01D2258/0283B01D2258/00C04B2235/422C04B2235/447C04B2235/443C04B2235/444C04B2235/448C04B2235/449C04B2235/6562C04B2235/6567C04B2235/3272C04B38/0074C04B38/0054Y02P40/60
Inventor 胡先海房利生梁运动钱丰吴秀秀
Owner 安徽世倾环保科技有限公司
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