Preparation method and application of composition for decomposing low-molecular aldehyde without illumination

A technology of composition and weight percentage, applied in the field of indoor air purification, can solve problems such as loss of function, limitation, and inability to treat formaldehyde

Inactive Publication Date: 2016-11-09
崔文艳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) It is easy to generate new chemical substances, causing secondary pollution;
[0007] (2) Once the chemical reaction is completed, it will lose its effect, and the formaldehyde that continues to volatilize cannot be treated, and it can only be effective for a short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] Dissolve 8g sodium phytate and 4g phytic acid in 30g water, add 5g methyl glycoside, 1g chitin, 1g CMC, 7g sodium p-aminobenzenesulfonate, 4g sodium thiosulfate, 1g EDTA, 4g glycerol, dicyandiamide Dissolve 2 g of amine and 5 g of carbohydrazide in 30 g of water. After mixing the two aqueous solutions, add 2 g of glucoside and 1.5 g of modified starch to prepare 100 g of aqueous solution.

[0035] In the present invention, phytic acid can be replaced by citric acid; glycerol can be replaced by polyethylene glycol; chitin can be replaced by CMC or water-soluble cellulose;

example 2

[0037] Mix 13g of sodium phytate and 6g of citric acid evenly, mix 7g of sodium p-aminobenzenesulfonate, 10g of sodium thiosulfate, 11g of carbohydrazide, 6g of dicyandiamide, and 2g of cellulose, and mix the two solids Then add 10 g of modified starch, 15 g of diatomaceous earth, 5 g of aluminum oxide, 10 g of silicon dioxide, and 5 g of rubber powder to make 100 g of powdery solid.

[0038] The composition of the present invention reacts with formaldehyde due to gain and loss of electrons, redox reaction occurs, and chemical bonds change, so that the formaldehyde decomposes and loses toxicity.

[0039] Phytic acid and sodium phytate form a buffer solution in the present invention, which is suitable for the removal of formaldehyde from acidic to alkaline formaldehyde in the liquid phase pH value system. Its gaseous state can remove formaldehyde, acetaldehyde and acrolein in the air, and the solid state can be used Diatom mud, shellfish mud, water-based paint, urea-formaldehyd...

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PUM

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Abstract

The invention provides a preparation method and application of a composition for decomposing low-molecular aldehyde without illumination. The composition mainly comprises chitin, EDTA, carbohydrazide, glycerin, polyethylene glycol, dicyandiamide, sodium phytate, phytic acid, glucoside, sodium sulfanilate, mannitol, citric acid, sodium thiosulfate, modified starch, cellulose, gelatine powder, aluminum oxide, silica, diatomite and kaolin. The composition can be used for removing formaldehyde, acetaldehyde and other low-molecular aldehyde and harmful small polar molecules in gas-liquid-solid phase substances. The composition can be used for removing residual formaldehyde in decorative materials in buildings, and an aqueous solution and the gas state of the composition can be used for decomposing formaldehyde in the liquid phase and the gas phase. Solid of the composition can be added into materials such as indoor building materials, wallpaper glue, diatom ooze, seashell ooze, silicon balls, diatom balls, interior wall coating materials and water-based paint. According to a decomposing function of the composition, one part of the composition with the components can decompose 2 parts of formaldehyde solutions (40%), salt and water are generated, secondary pollution is avoided, illumination is of no need, and the formaldehyde decomposition rate can reach 99.7% or over.

Description

technical field [0001] The invention relates to indoor air purification, decomposition and removal of formaldehyde, acetaldehyde and other low-molecular-weight aldehydes in any indoor environment such as household, automobile interior, factory, office, school, kindergarten, hospital, office building, etc.; decomposition and removal of diatom mud and shellfish Low-molecular-weight aldehydes such as formaldehyde and acetaldehyde in mud, artificial boards, urea-formaldehyde resin glue, interior wall coating materials, water-based paints, decorative materials, wallpapers, and daily chemical products. Background technique [0002] At present, similar formaldehyde scavengers sold in the domestic market mainly include photocatalyst products, chemical neutralization and sealing products, and physical adsorption products. [0003] 1. Photocatalyst [0004] Photocatalyst is a general term for photo-semiconductor materials with photocatalytic function represented by titanium dioxide. ...

Claims

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Application Information

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IPC IPC(8): A62D3/30A62D3/33B01D53/78B01D53/82B01D53/72C02F1/50A61K8/34A61K8/365A61K8/42A61K8/44A61K8/46A61K8/55A61K8/60A61K8/73A61K8/43A61Q19/00C09D5/02C09D7/12C09J11/06C09J11/08A62D101/28
CPCA62D3/30A61K8/345A61K8/365A61K8/42A61K8/43A61K8/44A61K8/463A61K8/466A61K8/55A61K8/602A61K8/731A61K8/736A61K2800/10A61Q19/00A62D3/33A62D2101/28B01D53/72B01D53/78B01D53/82B01D2257/708B01D2258/06C02F1/50C02F2303/02C09D5/024C09D7/63C09D7/65C09J11/06C09J11/08
Inventor 崔文艳李晖王衍欣孙文明隋承升李存昌柴焕生孙俣王中文马祥鹏杨顺鑫刘素雯
Owner 崔文艳
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