A kind of attapulgite clay composite catalyst for removing formaldehyde and its preparation method and application

A technology of attapulgite clay and composite catalyst, which is applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of low adsorption conversion rate and high catalytic activity , insufficient strength and other problems, to achieve the effect of large cohesion, large specific surface area, and increased adsorption efficiency

Active Publication Date: 2020-06-16
国盾(山东)知识产权运营管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: Aiming at the problems existing in the prior art, the present invention provides a formaldehyde-removing attapulgite clay composite catalyst. The composite catalyst makes full use of the combination of attapulgite clay and metal oxide carriers such as titanium dioxide to form overlapping composite catalysts. The carrier is formed by loading noble metals and active metals on a composite carrier. It has excellent photocatalytic performance, can effectively remove formaldehyde in the environment, and avoids the problems of insufficient strength in the reaction process and low conversion rate of ordinary catalysts alone. The composite catalyst of the present invention With a very low concentration of precious metals, not only the catalytic activity is high, but also the problem of high cost is overcome

Method used

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  • A kind of attapulgite clay composite catalyst for removing formaldehyde and its preparation method and application
  • A kind of attapulgite clay composite catalyst for removing formaldehyde and its preparation method and application
  • A kind of attapulgite clay composite catalyst for removing formaldehyde and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] raw material:

[0035] 38 parts of attapulgite clay, 30 parts of titanium dioxide, 12 parts of polybutyl acrylate, 5 parts of methyl cellulose, 8 parts of fatty acid diethanolamide, 8 parts of phthalic acid; the amount of platinum chloride solution is based on the mass of precious metal platinum It accounts for 0.0008% of the mass of the attapulgite clay, and the amount of sodium carbonate solution added accounts for 0.015% of the mass of the attapulgite clay based on the mass of the active metal sodium element. Among them, the number average molecular weight of polybutyl acrylate is 10000.

[0036] Preparation:

[0037] (1) Weigh each raw material in proportion, dissolve polybutylacrylate in absolute ethanol, stir and dissolve at 40°C, add fatty acid diethanolamide, then slowly add methyl cellulose to react for 18 hours, dry and concentrate to obtain the reactant A, then add the attapulgite clay and the reactant A into absolute ethanol, stir and mix, and ultrasonicat...

Embodiment 2

[0042] raw material:

[0043] 30 parts of attapulgite clay, 25 parts of cerium oxide, 8 parts of polybutyl acrylate, 3 parts of methyl cellulose, 5 parts of fatty acid diethanolamide, 5 parts of phthalic acid; The mass of gold element accounts for 0.0005% of the mass of the attapulgite clay, and the addition of potassium chloride solution accounts for 0.01% of the mass of the attapulgite clay based on the mass of active metal potassium. Among them, the number average molecular weight of polybutyl acrylate is 8000.

[0044] Preparation:

[0045] (1) Weigh each raw material in proportion, dissolve polybutylacrylate in absolute ethanol, stir and dissolve at 35°C, add fatty acid diethanolamide, then slowly add methyl cellulose to react for 15 hours, dry and concentrate to obtain reactant A , and then add attapulgite clay and reactant A into absolute ethanol, stir and mix, and ultrasonicate for 20 minutes to obtain mixture A;

[0046] (2) Add metal oxide powder and phthalic acid...

Embodiment 3

[0050] raw material:

[0051] 45 parts of attapulgite clay, 35 parts of aluminum oxide, 15 parts of polybutyl acrylate, 8 parts of methyl cellulose, 10 parts of fatty acid diethanolamide, 10 parts of phthalic acid; The mass of the element accounts for 0.001% of the mass of the attapulgite clay, and the added amount of the sodium carbonate solution accounts for 0.02% of the mass of the attapulgite clay based on the mass of the active metal sodium element. Among them, the number average molecular weight of polybutyl acrylate is 10000.

[0052] Preparation:

[0053] (1) Weigh each raw material in proportion, dissolve polybutylacrylate in absolute ethanol, stir and dissolve at 40°C, add fatty acid diethanolamide, then slowly add methyl cellulose to react for 20 hours, dry and concentrate to obtain reactant A , and then add attapulgite clay and reactant A into absolute ethanol, stir and mix, and ultrasonicate for 30 minutes to obtain mixture A;

[0054] (2) Add metal oxide powde...

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Abstract

The invention discloses an attapulgite clay composite catalyst for removing formaldehyde and a preparation method and application thereof. The composite catalyst is mainly prepared from a composite carrier, precious metal components and active metal components; the composite carrier is mainly prepared from the following raw materials in part by weight: 30-45 parts of attapulgite clay, 25-35 partsof metal oxide, 8-15 parts of polybutyl acrylate, 3-8 parts of methylcellulose, 5-10 parts of fatty acid diethanolamide, and 5-10 parts of phthalandione; the precious metal component adding amount occupies 0.0005-0.001% of the mass of the attapulgite clay based on the mass of the precious metal element, and the adding amount of the active metal component occupies 0.01-0.02% of the mass of the attapulgite clay based on the mass of the active metal element. The composite catalyst prepared through the method is large in specific surface, stable in structure, good in photocatalytic performance, capable of effectively removing formaldehyde in the environment, simple and convenient in preparation method, and can be applied to the industrial production.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to an attapulgite clay composite catalyst for removing formaldehyde, a preparation method and application thereof. Background technique [0002] Formaldehyde, as a common indoor toxic pollutant gas, is widely derived from the release of building materials, decorative items, and furniture materials. Formaldehyde has been identified as a carcinogen by the World Health Organization. Even a low dose of formaldehyde will have a strong stimulating effect on the eyes, skin and respiratory organs after long-term exposure to the human body. It has a strong carcinogenic and cancer-promoting effect and is easy to cause nasopharyngeal cancer , colon cancer, genetic mutations in the nucleus, and leukemia. In order to meet the increasingly stringent environmental protection rules and people's pursuit of a higher quality of life, the effective removal of indoor formaldehyde gas has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/42B01J23/52B01J23/50B01D53/86B01D53/72
CPCB01D53/8668B01J23/42B01J23/50B01J23/52B01J35/004
Inventor 胡涛石莹莹熊清平周伟王思瑜尚珂含周鑫宇朱永
Owner 国盾(山东)知识产权运营管理有限公司
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