Environment-friendly formaldehyde remover and preparation method thereof

A purification agent and formaldehyde technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problems of high price and achieve the effect of low price, low equipment requirements, and easy availability of raw materials

Inactive Publication Date: 2018-05-15
CHENGDU YUYA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology has high efficiency in eliminating formaldehyde, no secondary pollution, and no problems such as adsorption saturation, but commonly used chemicals such as platinum are expensive

Method used

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  • Environment-friendly formaldehyde remover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of an environment-friendly formaldehyde purifying agent, comprising the steps of:

[0029] 1) Surface modification of negative ion powder: ultrasonically disperse 50 g of negative ion powder in 150 g of ethanol, then add 5 g of 2-(3,4-epoxycyclohexyl) ethyl triethoxysilane, stir at room temperature for 1 hour, and then centrifuge , washed with ethanol for 5 times and dried in a vacuum oven at 50°C for 10 hours;

[0030] 2) Preparation of polypyrrole tube: FeCl 3 ·6H 2 O 40g was dispersed in 1000g of methyl orange solution with a mass fraction of 2%. When flocculent substances were formed, 20g of pyrrole monomer was added and stirred at room temperature for 20 hours. A black suspension was obtained, which was filtered and dried in a vacuum oven at 60°C for 12 hours;

[0031] 3) Surface modification of polypyrrole tube: Disperse 15 g of polypyrrole tube prepared in step 2) in 45 g of ethanol, add 1.5 g of epichlorohydrin and 3 g of triethylamine, s...

Embodiment 2

[0036] A preparation method of an environment-friendly formaldehyde purifying agent, comprising the steps of:

[0037] 1) Surface modification of negative ion powder: ultrasonically disperse 70 g of negative ion powder in 200 g of isopropanol, then add 7 g of 2-(3,4-epoxycyclohexyl) ethyl triethoxysilane to it, and stir at room temperature for 1.2 hours, Then centrifuge, wash with ethanol centrifugation for 6 times and then dry in a vacuum oven at 53°C for 12 hours;

[0038] 2) Preparation of polypyrrole tube: FeCl 3 ·6H 2O 46g was dispersed in 1080g of methyl orange solution with a mass fraction of 3%. When flocculent substances were formed, 20g of pyrrole monomer was added and stirred at room temperature for 23 hours. A black suspension was obtained, which was filtered and baked in a vacuum oven at 65°C for 14 hours;

[0039] 3) Surface modification of polypyrrole tube: Disperse 17 g of polypyrrole tube prepared in step 2) in 55 g of ethanol, add 2 g of epichlorohydrin an...

Embodiment 3

[0044] A preparation method of an environment-friendly formaldehyde purifying agent, comprising the steps of:

[0045] 1) Surface modification of negative ion powder: ultrasonically disperse 90g of negative ion powder in 300g of ethylene glycol, then add 8.5g of 2-(3,4-epoxycyclohexyl)ethyltriethoxysilane to it, and stir at room temperature for 1.6 hours , then centrifuged, washed with ethanol for 7 times and then dried in a vacuum oven at 57°C for 14 hours;

[0046] 2) Preparation of polypyrrole tube: FeCl 3 ·6H 2 O 56g was dispersed in 1160g of methyl orange solution with a mass fraction of 5%. When flocculent substances were formed, 20g of pyrrole monomer was added and stirred at room temperature for 28 hours. A black suspension was obtained, which was filtered and dried in a vacuum oven at 73°C for 17 hours;

[0047] 3) Surface modification of polypyrrole tube: Disperse 19 g of polypyrrole tube prepared in step 2) in 68 g of ethanol, add 2.5 g of epichlorohydrin and 5 g...

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Abstract

The invention discloses a preparation method of an environment-friendly formaldehyde remover. The preparation method comprises the steps of performing surface modification on an anion powder with 2-(3,4-epoxy cyclohexyl) ethyltriethoxysilane, preparing a polypyrrole tube, performing surface modification on the polypyrrole tube with epoxy chloropropane, dispersing the surface modified anion powderand the surface modified polypyrrole tube in isopropanol, adding 1,2,3,4,6-o-pentagalloylglucose and a catalyst B, performing stirring at 70-80 DEG C for reaction for 8-10h, performing centrifugation,performing centrifugal washing for 4-7 times with ether and ethanol sequentially, putting in a vacuum drying oven under the temperature of 60-80 DEG C for drying for 12-24h, and treating the surfaceof the remover with 1,3,5-tri [3-triethoxy silyl) propyl]-1,3,5-triazine-2,4,6 (1H, 3H, 5H)-trione. The invention further discloses an environment-friendly formaldehyde remover prepared by the preparation method. The environment-friendly formaldehyde remover has high formaldehyde removal efficiency, is free from secondary pollution adsorption and saturation are avoided, and the price is low.

Description

technical field [0001] The invention relates to the technical field of purifiers and air pollution control, in particular to an environmentally friendly purifier suitable for removing harmful formaldehyde gases indoors and a preparation method thereof. Background technique [0002] With the development of the economy and the improvement of people's living standards, home decoration is becoming more and more luxurious. While the use of a large number of decoration materials brings convenience and comfort to people, it will inevitably bring indoor formaldehyde pollution, resulting in continuous deterioration of indoor air quality and serious harm to human health. Long-term exposure to low-concentration formaldehyde can cause chronic respiratory diseases, nasopharyngeal cancer, colon cancer, brain cancer, menstrual disorders, nuclear gene mutations, pregnancy syndrome, leukemia, memory and mental decline, etc. When the concentration of formaldehyde is high, it can cause physic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/72B01D53/74B01D53/02C08G73/06
CPCB01D53/02B01D53/72B01D53/74B01D53/8668B01D2253/20B01D2253/306B01D2255/70B01D2255/802B01D2256/22B01D2257/704B01D2257/708C08G73/0611
Inventor 向红先
Owner CHENGDU YUYA TECH
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