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Preparation method of filter core for removing formaldehyde in air

A filter element and formaldehyde technology, which is applied in the field of preparation of filter elements for removing formaldehyde in the air, can solve the problems of accelerated formaldehyde volatilization speed, rising temperature, and little change in formaldehyde content, and achieve high formaldehyde removal efficiency, long service life, and preparation The method is simple and easy to operate

Inactive Publication Date: 2020-03-31
西安重光明宸检测技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Indoor formaldehyde pollution has attracted more and more people's attention. There are many air filter elements with formaldehyde removal on the market, but the formaldehyde content in the air does not change much after most households use air purifiers; the main reasons are: 1. The ambient temperature rises 2. New furniture and other new sources of formaldehyde pollution are added

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] S1, mixing the silane coupling agent, acidified honeycomb activated carbon powder, and ethanol to obtain a mixture A;

[0031] S2, filtering the mixture A, sintering the filtrate and grinding to obtain the mixture B;

[0032] S3, sequentially adding zeolite powder, graphene, potassium carbonate to mixture B to obtain mixture C;

[0033] S4, adding sodium silicate and manganese dioxide to the mixture C in sequence, and mixing evenly to obtain the mixed material;

[0034] S5, granulating the mixed material, sintering, and cooling to room temperature to obtain.

[0035] In S2, the sintering temperature is 260°C.

[0036] In S2, the sintering time was 0.5 hours.

[0037] In S3, the weight ratio of mixture B, zeolite powder, graphene and potassium carbonate is 80:20:10:1.

[0038] In S4, the weight ratio of sodium silicate, manganese dioxide, and mixture C is 3:2:100.

[0039] In S5, the sintering temperature is 350° C., and the sintering time is 2 hours.

Embodiment 2

[0041] S1, mixing the silane coupling agent, acidified honeycomb activated carbon powder, and ethanol to obtain a mixture A;

[0042] S2, filtering the mixture A, sintering the filtrate and grinding to obtain the mixture B;

[0043] S3, sequentially adding zeolite powder, graphene, potassium carbonate to mixture B to obtain mixture C;

[0044] S4, adding sodium silicate and manganese dioxide to the mixture C in sequence, and mixing evenly to obtain the mixed material;

[0045] S5, granulating the mixed material, sintering, and cooling to room temperature to obtain.

[0046] In S2, the sintering temperature is 380°C.

[0047] In S2, the sintering time was 1 hour.

[0048] In S3, the weight ratio of mixture B, zeolite powder, graphene and potassium carbonate is 90:30:20:5.

[0049] In S4, the weight ratio of sodium silicate, manganese dioxide, and mixture C is 5:4:100.

[0050] In S5, the sintering temperature is 450° C., and the sintering time is 4 hours.

Embodiment 3

[0052] S1, mixing the silane coupling agent, acidified honeycomb activated carbon powder, and ethanol to obtain a mixture A;

[0053] S2, filtering the mixture A, sintering the filtrate and grinding to obtain the mixture B;

[0054] S3, sequentially adding zeolite powder, graphene, potassium carbonate to mixture B to obtain mixture C;

[0055] S4, adding sodium silicate and manganese dioxide to the mixture C in sequence, and mixing evenly to obtain the mixed material;

[0056] S5, granulating the mixed material, sintering, and cooling to room temperature to obtain.

[0057] In S2, the sintering temperature is 300°C.

[0058] In S2, the sintering time was 0.6 hours.

[0059] In S3, the weight ratio of mixture B, zeolite powder, graphene and potassium carbonate is 85:20-30:15:3.

[0060] In S4, the weight ratio of sodium silicate, manganese dioxide, and mixture C is 4:3:100.

[0061] In S5, the sintering temperature is 360° C., and the sintering time is 3 hours.

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PUM

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Abstract

The invention discloses a preparation method of a filter core for removing formaldehyde in air, particularly including the following steps: S1, mixing a silane coupling agent, acidified honeycomb active carbon powder and ethanol to obtain a mixture A; S2, filtering the mixture A and sintering and then grinding the filtered material to obtain a mixture B; S3, successively adding zeolite powder, graphene and K2CO3 to the mixture B to obtain a mixture C; S4, successively adding sodium silicate and MnO2, and uniformly mixing the components to obtain a mixture; S5, granulating and sintering the mixture and cooling the sintered mixture to room temperature. The preparation method is simple in operation. The filter core is good in filtering effect and long in service life, has high formaldehyde efficiency and is stable in property.

Description

technical field [0001] The invention belongs to the technical field of air purification, and in particular relates to a preparation method of a filter element for removing formaldehyde in air. Background technique [0002] Indoor formaldehyde pollution has attracted more and more people's attention. There are many air filter elements with formaldehyde removal on the market, but the formaldehyde content in the air does not change much after most households use air purifiers; the main reasons are: 1. The ambient temperature rises 2. New furniture and other new sources of formaldehyde pollution have been added. Therefore, a filter element with stable performance and higher formaldehyde removal efficiency is needed. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a filter element for removing formaldehyde in the air. The preparation method is simple and easy to operate, and the prepared filter element has good filte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01D39/06B01D53/02B01D53/00
CPCB01D39/06B01D53/00B01D53/02B01D2239/10B01D2253/102B01D2253/106B01D2253/108B01D2253/112B01D2257/708B01J20/043B01J20/06B01J20/10B01J20/16B01J20/20B01J2220/42B01J2220/4806
Inventor 陈威
Owner 西安重光明宸检测技术有限公司
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