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 str

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] The preparation method of composite activated carbon substrate includes the following steps:

[0032] (1) Take the coconut husk and wash it with water 3-6 times the quality of the coconut husk, dry it naturally, crush it through a 120-mesh sieve, and place it in a water bath at 40-55°C. Take the sieved particles and add reagent A according to the mass ratio of 1:8-15. Mix, stir at 400~600r / min for 30~50min, after standing at room temperature for 2~5h, move into the autoclave, pass in the mixed gas, control the pressure in the autoclave to 8.2~9.5MPa, high pressure treatment for 20~45min, with 0.05~0.09 Relieve the pressure to normal pressure at MPa / s and discharge the material to obtain pretreated coconut shell particles. Take the pretreated coconut shell particles and add hydrogenated castor oil and glycerin at a mass ratio of 10:1~3:1, and mix with a ball-to-material ratio of 20-30 :1. Add zirconia ball milling beads and mill at 350~600r / min for 1~3h to obtain ball abras...

Example Embodiment

[0039] Example 1

[0040] Reagent A: Take glucose, citric acid, sodium bicarbonate, and NaH with a concentration of 0.1mol / L according to the mass ratio of 1:6:1:40 2 PO 4 Mix the solution 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 in a volume ratio of 5:3 to obtain mixed gas;

[0043] Additives: mix polyvinylpyrrolidone and sodium humate according to a mass ratio of 8:3 to obtain additives;

[0044] Water reducing agent: polycarboxylic acid water reducing agent TH-928;

[0045] Oil: Mix linseed oil and hydrogenated castor oil at a mass ratio of 4:3 to obtain oil;

[0046] Excipients: take carboxymethyl cellulose and nano SiO at a mass ratio of 8:3:1 2 、Mixed with microcrystalline paraffin to obtain auxiliary materials;

[0047] The preparation method of composite activated carbon substrate includes the following steps:

[0048] (...

Example Embodiment

[0055] Example 2

[0056] Reagent A: Take glucose, citric acid, sodium bicarbonate, and NaH with a concentration of 0.1mol / L according to the mass ratio of 1:5:1:30 2 PO 4 Mix the solution 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 in a volume ratio of 5:2 to obtain mixed gas;

[0059] Additives: mix polyvinylpyrrolidone and sodium humate according to a mass ratio of 8:2 to obtain additives;

[0060] Water reducing agent: polycarboxylic acid water reducing agent XBW-10;

[0061] Oil: Mix linseed oil and hydrogenated castor oil at a mass ratio of 4:2 to obtain oil;

[0062] Excipients: take carboxymethyl cellulose and nano SiO at a mass ratio of 8: 2: 1 2 、Mixed with microcrystalline paraffin to obtain auxiliary materials;

[0063] The preparation method of composite activated carbon substrate includes the following steps:

[0064]...

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PUM

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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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