Phenolic resin based active carbon as well as preparation method and application thereof

A technology of phenolic resin and activated carbon, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve the problems of activated carbon pore blockage, unsatisfactory effect, and low silver adhesion, achieve good mechanical strength, and avoid secondary Pollution, not easy to fall off effect

Inactive Publication Date: 2018-08-10
GD MIDEA ENVIRONMENT APPLIANCES MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When activated carbon is used for purification treatment, harmful molecules and bacteria are easy to attach and multiply on the carbon material, causing secondary pollution. In order to make up for this deficiency, loading silver on activated carbon is an effective method. The main loading methods are: Surface deposition method, however, although the carbon material has a large amount of silver adsorption, but the silver adhesion is low and easy to fall off
At present, activated carbon loaded with silver is prepared by physical mixing, but it is necessary to add a binder, which is likely to cause blockage of the activated carbon pores, and the effect is not ideal.

Method used

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  • Phenolic resin based active carbon as well as preparation method and application thereof
  • Phenolic resin based active carbon as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Prepare the phenolic resin-based activated carbon (the total mass of metal oxide and nano-silver accounts for 6.0% by weight of described activated carbon) that is loaded with metal oxide and nano-silver, and concrete preparation method is as follows:

[0093] (1) phenolic monomers, aldehyde monomers, curing agent, catalyst and solvent are mixed to obtain a reaction mixture, wherein the phenols are phenol, the aldehydes are formaldehyde, and the curing agent is hexamethylenetetramine, The solvent is methanol, and the molar ratio of phenol and formaldehyde is 1:1.2; hexamethylenetetramine is 1.5% of the mass of phenol and the mass of methanol is 5 times that of phenol.

[0094] (2) remove the solvent in the reaction mixture under reduced pressure, so as to obtain the solid mixture containing phenolic resin;

[0095] (3) Mix the solid mixture with metal oxide, silver-containing salt, surfactant and water, and slowly heat up under constant stirring to obtain phenolic resin...

Embodiment 2

[0099] Preparation is loaded with the phenolic resin-based activated carbon of nano-noble metal and nano-silver (the total mass of nano-noble metal and nano-silver accounts for 7.0% by weight of the activated carbon),

[0100] The difference between the specific preparation method and Example 1 is that in step (3), the solid mixture is mixed with nano-precious metal salt, silver-containing salt, surfactant and water, and the temperature is slowly raised under constant stirring, so as to obtain phenolic resin microspheres, wherein, The nano-noble metal salt is ruthenium nitrate, the silver-containing salt is silver nitrate, and the mass ratio of the solid mixture to the nano-noble metal salt, silver-containing salt, surfactant and water is 100:8:1.5:2.5:1000.

Embodiment 3

[0102] Prepare the phenolic resin-based activated carbon (the total mass of metal oxide, nano-noble metal and nano-silver accounts for 7.5% by weight of the activated carbon) loaded with metal oxide, nano-noble metal and nano-silver,

[0103] The specific preparation method differs from Example 1 in that in step (3), the solid mixture is mixed with metal oxides, nano-precious metal salts, silver-containing salts, surfactants and water, and the temperature is slowly raised under uniform stirring, so as to obtain phenolic resin microparticles. ball, wherein the metal oxide is manganese dioxide, the nano-noble metal salt is ruthenium nitrate and palladium nitrate, the silver-containing salt is silver nitrate, and the solid mixture is mixed with metal oxide, nano-noble metal salt, silver-containing salt, surfactant and water. The mass ratio is 100:5:3:1:2.5:800.

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Abstract

The invention discloses phenolic resin based active carbon as well as a preparation method and application thereof, wherein at least one of metallic oxide and nanometer noble metal, and nanometer silver are loaded on the phenolic resin based active carbon, wherein the nanometer noble metal does not include the nanometer silver. The phenolic resin based active carbon provided by the invention has the advantages that the formaldehyde can be effectively adsorbed and decomposed; a sterilization effect can also be achieved; the loading object on the phenolic resin based active carbon cannot easilyfall off; the phenolic resin based active carbon can be widely applied to the purification field of families, industry, tail gas and the like.

Description

technical field [0001] The invention belongs to the field of sterilization and purification, in particular, the invention relates to a phenolic resin-based activated carbon and a preparation method and application thereof. Background technique [0002] When activated carbon is used for purification treatment, harmful molecules and bacteria are easy to attach and multiply on the carbon material, causing secondary pollution. In order to make up for this deficiency, loading silver on activated carbon is an effective method. The main loading methods are: Surface deposition method, however, although the carbon material has a large amount of silver adsorption, but the silver adhesion is low and easy to fall off. At present, there is a method of physical mixing to prepare silver-loaded activated carbon, but it is necessary to add a binder, which is likely to cause blockage of the activated carbon pores, and the effect is not ideal. Therefore, how to effectively avoid secondary pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01D53/86B01D53/72
CPCB01D53/04B01D53/8668B01D2255/1021B01D2255/1023B01D2255/1025B01D2255/1026B01D2255/106B01D2255/2065B01D2255/20707B01D2255/2073B01D2255/20738B01D2255/20746B01D2255/20753B01D2255/20761B01D2255/2092B01D2257/91B01J20/20
Inventor 王阳阳
Owner GD MIDEA ENVIRONMENT APPLIANCES MFG
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