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Novel air purification material and preparation method thereof

An air purification material and a new technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of secondary pollution, short effective use time of activated carbon, inability to completely remove harmful gas of formaldehyde, etc., and achieve strong adsorption and high efficiency. Effects of Adsorption and Oxidative Decomposition

Inactive Publication Date: 2017-12-12
TIANJIN RES INST FOR ADVANCED EQUIP TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the air filter materials on the market are mainly activated carbon, but activated carbon can only perform simple physical adsorption, and cannot completely remove harmful gases such as formaldehyde and hydrogen sulfide. locking
Moreover, activated carbon will reach adsorption saturation after a period of time, and will release harmful gases again to form secondary pollution.
Therefore, the effective use time of activated carbon is very short, and in many cases, the release of harmful gases is long-term. For example, it takes at least several years or even ten years for the release of formaldehyde after interior decoration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A new type of air purification material, comprising A particles and B particles, the weight ratio of A particles and B particles is 1:1; the A particles are a mixture of sepiolite, bentonite, attapulgite and activated carbon powder, sepiolite The particle size of A, bentonite, attapulgite and activated carbon powder are all less than 500 mesh; B particles are activated alumina particles loaded with potassium permanganate. A particle diameter is 2mm, and B particle diameter is 3.5mm.

[0046]The preparation of the A particle in the new air purification material comprises the following steps: passing sepiolite, bentonite, attapulgite and activated carbon powder through a 500-mesh sieve respectively; taking 50 parts of sepiolite, 15 parts of bentonite and 30 parts of attapulgite respectively , 5 parts of activated carbon powder (wherein, the adsorption pores of sepiolite are 0.3-1.1nm, the adsorption pores of attapulgite are 0.3-0.6nm, and the adsorption pores of activated...

Embodiment 2

[0052] A novel air purification material, comprising A particles and B particles, the weight ratio of A particles and B particles is 8:2; the A particles are a mixture of sepiolite, bentonite, attapulgite and activated carbon powder, sepiolite The particle size of A, bentonite, attapulgite and activated carbon powder are all less than 500 mesh; B particles are activated alumina particles loaded with potassium permanganate. A particle diameter is 3mm, and B particle diameter is 4mm.

[0053] The preparation of the A particle in the new air purification material comprises the following steps: respectively passing sepiolite, bentonite, attapulgite and activated carbon powder through a 500-mesh sieve; respectively taking 40 parts of sepiolite, 20 parts of bentonite and 30 parts of attapulgite 15 parts of activated carbon powder (wherein, the adsorption pores of sepiolite are 0.3-1.1nm, the adsorption pores of attapulgite are 0.3-0.6nm, and the adsorption pores of activated carbon ...

Embodiment 3

[0059] A novel air purification material, comprising A particles and B particles, the weight ratio of A particles and B particles is 2:8; the A particles are a mixture of sepiolite, bentonite, attapulgite and activated carbon powder, sepiolite The particle size of A, bentonite, attapulgite and activated carbon powder are all less than 500 mesh; B particles are activated alumina particles loaded with sodium permanganate. A particle diameter is 3mm, and B particle diameter is 3mm.

[0060] The preparation of the A particle in the new air purification material comprises the following steps: respectively passing sepiolite, bentonite, attapulgite and activated carbon powder through a 500-mesh sieve; respectively taking 40 parts of sepiolite, 20 parts of bentonite and 30 parts of attapulgite 15 parts of activated carbon powder (wherein, the adsorption pores of sepiolite are 0.3-1.1nm, the adsorption pores of attapulgite are 0.3-0.6nm, and the adsorption pores of activated carbon are...

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Abstract

The invention provides a novel air purification material and a preparation method thereof. The novel air purification material contains a particle A and a particle B, wherein the weight ratio of the particle A to the particle B is (1 to 9) to (9 to 1); the particle A contains sepiolite and the particle B is a catalyst carrier particle loaded with an oxidant; the particle A is prepared from the following components in parts by weight: 40 to 60 parts of the sepiolite, 15 to 25 parts of bentonite, 30 to 40 parts of attapulgite and 5 to 15 parts of activated carbon; the particle B is an active alumina particle loaded with potassium permanganate or sodium permanganate; both the diameter of the particle A and the diameter of the particle B are 2 to 4mm. The novel air purification material provided by the invention has the advantages that harmful gases can be efficiently adsorbed; in addition, harmful gases can be completely decomposed and no secondary pollution is caused.

Description

technical field [0001] The invention belongs to the field of air purification materials, and in particular relates to a novel air purification material and a preparation method thereof. Background technique [0002] At present, the air filter materials on the market are mainly activated carbon, but activated carbon can only perform simple physical adsorption, and cannot completely remove harmful gases such as formaldehyde and hydrogen sulfide. locking. Moreover, activated carbon will reach adsorption saturation after a period of time, and will release harmful gases again to form secondary pollution. Therefore, the effective use time of activated carbon is very short, and in many cases, the release of harmful gases is long-term. For example, it takes at least several years or even ten years to release formaldehyde after interior decoration. Therefore, the development of a sustainable air-purifying material is of great significance for controlling air pollution and improving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01J23/34
Inventor 汪家道杜川任勃帆
Owner TIANJIN RES INST FOR ADVANCED EQUIP TSINGHUA UNIV
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