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Activated carbon material with high crack resistance

A high crack-resistant, activated carbon technology, applied in inorganic chemistry, non-metallic elements, carbon compounds, etc., can solve problems such as poor flexural strength and compressive strength, and achieve the effect of improving flexural strength and adsorption performance.

Inactive Publication Date: 2019-01-04
FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Technical problem to be solved by the present invention: Aiming at the problem of poor flexural strength and compressive strength of commonly used activated carbon materials at present, a kind of activated carbon high crack resistance material is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The preparation method of composite active carbon base material, comprises the steps:

[0032] (1) Wash the coconut shell with water 3-6 times the mass of the coconut shell, dry it naturally, crush it through a 120-mesh sieve, put it in a water bath at 40-55°C, take the sieved particles and add reagent A at a mass ratio of 1:8-15 Mix, stir at 400~600r / min for 30~50min, let it stand at room temperature for 2~5h, move it into the autoclave, feed the mixed gas, control the pressure in the autoclave to 8.2~9.5MPa, and treat it under high pressure for 20~45min, at 0.05~0.09 MPa / s decompression to normal pressure, discharge, get pretreated coconut shell particles, take the pretreated coconut shell particles according to the mass ratio of 10:1~3:1, add hydrogenated castor oil, glycerin and mix, according to the ball material ratio of 20~30 : 1 Add zirconia ball milling beads, mill with 350~600r / min for 1~3h to get ball mill, take the ball mill and wash it with 60% ethanol solu...

Embodiment 1

[0040] Reagent A: Take glucose, citric acid, sodium bicarbonate, and NaH with a concentration of 0.1mol / L in a mass ratio of 1:6:1:40 2 PO 4 The solutions are mixed to obtain reagent A;

[0041] Reagent B: Mix ethylenediamine, urea, hydrazine hydrate, and deionized water at a mass ratio of 5:3:1:25 to obtain reagent B;

[0042] Mixed gas: Mix oxygen and carbon dioxide at a volume ratio of 5:3 to obtain a mixed gas;

[0043] Auxiliary: mix polyvinylpyrrolidone and sodium humate at a mass ratio of 8:3 to obtain the auxiliary;

[0044] Water reducer: polycarboxylate water reducer TH-928;

[0045] Oil plant: mix linseed oil and hydrogenated castor oil according to the mass ratio of 4:3 to obtain the oil plant;

[0046] Excipients: carboxymethyl cellulose and nano-SiO in a mass ratio of 8:3:1 2 and microcrystalline paraffin to obtain auxiliary materials;

[0047] The preparation method of composite active carbon base material, comprises the steps:

[0048] (1) Take the cocon...

Embodiment 2

[0056] Reagent A: Take glucose, citric acid, sodium bicarbonate, and NaH with a concentration of 0.1mol / L at a mass ratio of 1:5:1:30 2 PO 4 The solutions are mixed to obtain reagent A;

[0057] Reagent B: Mix ethylenediamine, urea, hydrazine hydrate, and deionized water at a mass ratio of 5:2:1:18 to obtain reagent B;

[0058] Mixed gas: Mix oxygen and carbon dioxide at a volume ratio of 5:2 to obtain a mixed gas;

[0059] Auxiliary: Mix polyvinylpyrrolidone and sodium humate at a mass ratio of 8:2 to obtain the auxiliary;

[0060] Water reducer: polycarboxylate water reducer XBW-10;

[0061] Oil plant: mix linseed oil and hydrogenated castor oil according to the mass ratio of 4:2 to obtain the oil plant;

[0062] Excipients: carboxymethyl cellulose and nano-SiO in a mass ratio of 8:2:1 2 and microcrystalline paraffin to obtain auxiliary materials;

[0063] The preparation method of composite active carbon base material, comprises the steps:

[0064] (1) Take the cocon...

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Abstract

The invention discloses an activated carbon material with high crack resistance, and belongs to the field of chemical engineering. The activated carbon material has the advantages that the activated carbon material is made from coconut shells, organic components such as glucose and pentosan in the coconut shells can be sufficiently exposed in glycerin and hydrogenated castor oil ball-milling procedures, systems of the activated carbon material can be connected with one another by the organic components, rigid nanometer SiO2 and high-activity sodium humate, and accordingly the breaking strengthof the systems can be effectively improved; bacterial celluloses, octenyl succinic starch ester and the like are used as wall materials for the activated carbon material, oil is used as a core material for the activated carbon material, calcium bicarbonate solution is used as an inorganic flocculating agent, terephthalaldehyde is used as a cross-linking agent, the added nanometer SiO2 has extremely large specific surface areas, surface atoms are extremely high in unsaturation, accordingly, the impact energy dispersive capacity and absorptive capacity of the activated carbon material can be improved, the bending strength and the compressive strength can be improved, and the problems of poor bending strength and compressive strength of existing common activated carbon materials can be solved by the aid of the activated carbon material.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to an active carbon high crack resistance material. Background technique [0002] With the implementation and development of building energy conservation, more and more people pay more and more attention to environmental protection materials and products. However, the currently used environmental protection materials are not ideal in various performances, especially in environmental protection and thermal insulation building materials. [0003] Activated carbon, also known as activated carbon black, is one of the commonly used adsorbents and is widely used in various industries. Activated carbon has strong physical adsorption and chemical adsorption functions. Its adsorption performance is largely determined by its pore structure characteristics. The pore distribution of activated carbon is three-dispersed, that is, macropores, mesopores and micropores all account for...

Claims

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Application Information

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IPC IPC(8): C01B32/354C01B32/348C01B32/324
CPCC01B32/324C01B32/348C01B32/354
Inventor 胡次兵陈建春庞成荣
Owner FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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