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Activated carbon capable of removing formaldehyde

A technology of activated carbon and coal-based activated carbon, which is applied in the field of activated carbon, can solve the problems of insufficient effective exposed area, unsuitable for wide application, and low loading capacity, and achieve the effect of mass production capacity, small effect gap, and reduced production cost

Inactive Publication Date: 2015-02-18
SHANXI XINHUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the materials used to remove formaldehyde by adsorption method are prepared by loading different active components on activated carbon and molecular sieve high specific surface materials. widely used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A formaldehyde-removing activated carbon, using coal-based activated carbon as a carrier skeleton material, loaded with 2% (weight) of basic copper carbonate, 1.5% (weight) of manganese nitrate, 1.5% (weight) of cerium nitrate, 0.05% (weight) of silver nitrate, 50% (weight) of binder-tar; wherein, the weight of coal-based activated carbon is 100% for calculation.

[0024] The preparation process of the activated carbon mainly includes a molding process, a carbonization process, and an activation process, as follows:

[0025] 1. Forming process

[0026] The raw coal (for example, 100g) is pulverized for 7 hours, and 95% of the pulverized coal passes through a 180-mesh sieve. Then take by weight basic copper carbonate 2g, manganese nitrate 1.5g, cerium nitrate 1.5g, silver nitrate 0.05g, binder 50g, add the above medicines that have been weighed successively in the kneader and fully mix, and the temperature is controlled at 80 ℃, pay attention to the mixing degree of th...

Embodiment 2

[0032] A formaldehyde-removing activated carbon, using coal-based activated carbon as a carrier skeleton material, loaded with 1% (weight) basic copper carbonate, 0.5% (weight) manganese nitrate, 2% (weight) cerium nitrate, 0.03% (weight) of silver nitrate, 45% (weight) of binder-tar; wherein, the weight of coal-based activated carbon is 100% calculation.

[0033] The preparation process of the activated carbon mainly includes a molding process, a carbonization process, and an activation process, as follows:

[0034] 1. Forming process

[0035] The raw coal (for example, 100g) is pulverized for 7 hours, and 95% of the pulverized coal passes through a 180-mesh sieve. Then weigh 1g of basic copper carbonate, 0.5g of manganese nitrate, 2g of cerium nitrate, 0.03g of silver nitrate, and 45g of binder, and add the above-mentioned medicines into the kneader in order to fully mix, and the temperature is controlled at 90°C. , Pay attention to the mixing degree of the material at any...

Embodiment 3

[0041] A formaldehyde-removing activated carbon, using coal-based activated carbon as a carrier skeleton material, loaded with 0.5% (weight) of basic copper carbonate, 3% (weight) of manganese nitrate, 1% (weight) of cerium nitrate, 0.01% (weight) silver nitrate, 60% (weight) binder-tar; wherein, the weight of coal-based activated carbon is 100% calculation.

[0042] The preparation process of the activated carbon mainly includes a molding process, a carbonization process, and an activation process, as follows:

[0043] 1. Forming process

[0044] The raw coal (for example, 100g) is pulverized for 7 hours, and 95% of the pulverized coal passes through a 180-mesh sieve. Then weigh 0.5g of basic copper carbonate, 3g of manganese nitrate, 1g of cerium nitrate, 0.01g of silver nitrate, and 60g of binder, and add the above-mentioned medicines into the kneader in order to fully mix, and the temperature is controlled at 100°C. , Pay attention to the mixing degree of the material at...

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PUM

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Abstract

The invention relates to the technical field of activated carbon, and particularly relates to active carbon capable of removing formaldehyde. Coaly activated carbon acts as a carrier framework material, and 0.5wt%-3wt% of basic cupric carbonate, 0.5wt%-3wt% of manganous nitrate, 0.5wt%-3wt% of cerous nitrate, 0.01wt%-0.1wt% of silver nitrate and 40wt%-60wt% of adhesive (tar) are loaded on the carrier framework material. In the process of activated carbon preparation, chemical medicines and pulverized coal are mixed directly, and then the mixture is subjected to layering, carbonization and activation, so that the activated carbon for removing formaldehyde is prepared. Compared with other preparation methods, the production cost can be lowered greatly.

Description

technical field [0001] The invention relates to the technical field of activated carbon, in particular to an activated carbon for removing formaldehyde and a preparation method thereof. Background technique [0002] Formaldehyde (HCHO) is a common indoor air pollution. It mainly comes from the wood-based panels of indoor furniture, adhesives with formaldehyde as the main raw material, and other various decorative materials that contain formaldehyde and emit to the outside world. Formaldehyde is a highly toxic substance and ranks second on the list of priority control of toxic chemicals in my country. In response to this situation, various technologies for controlling formaldehyde have emerged as the times require. The treatment methods currently used can be roughly divided into ozone oxidation, adsorption, photocatalytic oxidation and metal oxide methods, among which the adsorption method has the advantages of a wide range of raw materials, simple operation, and low energy ...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30B01J27/25B01D53/86B01D53/72
CPCB01D53/8668B01D2253/102B01D2255/20B01D2257/70B01J20/20
Inventor 裴佩安丽花朱海龙金彦任郭军军齐嘉豪赵婷王德周范斌杰温宇慧胡元宏
Owner SHANXI XINHUA CHEM
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