Filter material for removing formaldehyde and preparation method thereof

A filter material and formaldehyde technology, which is applied in the field of formaldehyde removal filter material and its preparation, can solve the problems of low adsorption rate of activated carbon and long adsorption time, and achieve the effect of improving efficiency and solving low adsorption rate

Inactive Publication Date: 2018-12-21
上海净颖环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a formaldehyde-removing filter material and its preparation method, which solves the problem of low adsorption rate of activated carbon in the prior art, resulting in long adsorption time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The powder is prepared from the following components by weight: 27% kaolin, 28% sepiolite, 16% attapulgite, 24% diatomite, 1% aluminum oxide powder, 0.6% metal foil powder, titanium dioxide Powder 2%, copper sulfate powder 1.4%;

[0029] The liquid material is prepared from the following components in weight ratio: 20% of nano zinc oxide, 25% of nano zirconium dioxide, and 55% of water.

[0030] Proportion the powder and liquid materials according to the weight ratio of 1:0.45, and then pass through the granulator, cylinder dryer and round basin dryer in sequence to make the powder and liquid materials form granules together. And the water content of the particles is reduced to below 1%, and the removal rate is as high as 93.1%.

Embodiment 2

[0032] The powder is prepared from the following components by weight: 25% kaolin, 35% sepiolite, 15% attapulgite, 20% diatomite, 1.1% aluminum oxide powder, 0.3% metal foil powder, titanium dioxide Powder 3%, copper sulfate powder 0.6%;

[0033] The liquid material is prepared from the following components in weight ratio: 24% of nano zinc oxide, 30% of nano zirconium dioxide, and 46% of water.

[0034] Proportion the powder and liquid materials according to the weight ratio of 1:0.45, and then pass through the granulator, cylinder dryer and round basin dryer in sequence to make the powder and liquid materials form granules together. And the water content of the particles is reduced to below 1%, and the removal rate is as high as 94.4%.

Embodiment 3

[0036] The powder is prepared from the following components by weight ratio: kaolin 21%, sepiolite 30%, attapulgite 20%, diatomite 23%, alumina powder 1.2%, metal foil powder 0.4%, titanium dioxide Powder 4%, copper sulfate powder 0.4%;

[0037] The liquid material is prepared from the following components in weight ratio: 18% of nano zinc oxide, 24% of nano zirconium dioxide, and 58% of water.

[0038] Proportion the powder and liquid materials according to the weight ratio of 1:0.45, and then pass through the granulator, cylinder dryer and round basin dryer in sequence to make the powder and liquid materials form granules together. And the water content of the particles is reduced to below 1%, and the removal rate is as high as 97.6%.

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Abstract

The invention discloses a filter material for removing formaldehyde and a preparation method thereof and belongs to the technical field of degradation of formaldehyde. The filter material is composedof powder and liquid; the powder is composed of the following components by weight percent: 20%-30% of kaolin, 25-35% of sepiolite, 13%-20% of attapulgite, 20%-25% of kieselguhr, 0.5%-2% of aluminum oxide powder, 0.1%-1% of metal foil powder, 1%-5% of titanium dioxide powder and 0.2%-2% of copper sulfate powder; the liquid is prepared from the following components by weight percent: 16%-25% of dispersion medium, 18%-35% of wear-resisting medium and 45%-65% of water. The preparation method comprises the following steps: mixing the powder and the liquid at mass ratio of 1:0.45, and then successively passing by a pelletizer, a cylinder drier machine and a basin type drier machine under working state, forming grains by the powder and the liquid, and reducing the water content of the grains tobelow 1%, thereby increasing the efficiency of degradation of formaldehyde and achieving the removal rate to 93.1%-97.6%.

Description

technical field [0001] The invention relates to a filter material for removing formaldehyde and a preparation method thereof, belonging to the technical field of removing formaldehyde. Background technique [0002] People spend more than 80% of their time indoors on average every day, and the relationship between indoor air quality and human health is quite close. In recent years, the problem of indoor environmental pollution has become increasingly prominent, endangering human health, reducing the quality of life, affecting work efficiency, and reducing human immunity. [0003] The most prominent pollutant in indoor environmental pollution is formaldehyde. Formaldehyde (molecular formula: HCHO), also known as formaldehyde, is the simplest form of aldehyde. It is usually a flammable, colorless and irritating gas that is easily soluble in water. , alcohols and ethers. 35-40% formaldehyde solution is called formalin. Formaldehyde is an important organic raw material, mainly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/14B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2257/70B01J20/02B01J20/0237B01J20/0281B01J20/06B01J20/08B01J20/12B01J20/14B01J20/28016
Inventor 侯红林赵项毅王娟邹沁华陈家如
Owner 上海净颖环保科技股份有限公司
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