Formaldehyde catching agent and preparation method thereof

A formaldehyde scavenger and dispersant technology, applied in the field of formaldehyde scavenger and its preparation, can solve the problems of difficult extraction of tea polyphenols, unsuitable for large-scale production, secondary pollution, etc., and achieves easy large-scale production and complete removal of formaldehyde. , the effect of improving efficiency

Active Publication Date: 2017-09-22
江苏宁而净环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both the Chinese patent document "A Method for Making Formaldehyde Scavenger" with the application number 201310702105.7 and the Chinese patent document "A Green and Environmentally Friendly Formaldehyde Scavenger" with the application number 201310701751.1 disclose a method of using tea polyphenols as the main raw material. Formaldehyde scavenger, the raw material of this formaldehyde scavenger is pure natural and pollution-free, but the extraction of tea polyphenols is difficult, and it is not suitable for large-scale production
The Chinese patent document "A high-efficiency neutral formaldehyde scavenger and its preparation method" with the application number 201210134035.5 discloses a formaldehyde scavenger based on melamine and formaldehyde. Formaldehyde is used in the preparation process of this type of formaldehyde scavenger. May cause secondary pollution

Method used

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  • Formaldehyde catching agent and preparation method thereof
  • Formaldehyde catching agent and preparation method thereof
  • Formaldehyde catching agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A formaldehyde trapping agent, the ratio of raw materials is as follows by mass: 40 parts of acrylic acid, 30 parts of glycidyl methacrylate, 30 parts of glycine, 30 parts of alanine, 80 parts of hydroxylamine, 15 parts of ethanol, 20 parts of urea, 20 parts Parts of glucose, 3 parts of potassium persulfate, 5 parts of sodium alginate, 10 parts of titanium dioxide, 20 parts of sodium carbonate, 40 parts of sodium citrate, 4500 parts of deionized water.

[0048] The preparation method of above-mentioned formaldehyde trapping agent, comprises the steps:

[0049] ① In parts by mass, add deionized water, glycine, alanine, hydroxylamine, ethanol, urea, and glucose into the stirrer, feed nitrogen into the reactor, and heat to 70°C.

[0050] ②Add the initiator, continue to feed nitrogen into the reactor, and heat to 85°C.

[0051] ③ After 15 minutes, add acrylic acid and glycidyl methacrylate and react for 2 hours.

[0052] ④ Add titanium dioxide, stir for 2 hours, add sodiu...

Embodiment 2

[0057] A formaldehyde capture agent, the ratio of raw materials is as follows by mass: 30 parts of acrylic acid, 80 parts of glycidyl methacrylate, 20 parts of glycine, 15 parts of alanine, 15 parts of glutamic acid, 50 parts of hydroxylamine, 20 parts of ethanol , 25 parts of urea, 20 parts of glucose, 10 parts of ammonium persulfate, 35 parts of PEI (molecular weight of 1300), 35 parts of chitosan, 10 parts of titanium dioxide, 20 parts of sodium carbonate, 30 parts of sodium citrate, 3500 parts of deionized water .

[0058] The preparation method of above-mentioned formaldehyde trapping agent, comprises the steps:

[0059] ① In parts by mass, add deionized water, glycine, alanine, glutamic acid, hydroxylamine, ethanol, urea, and glucose into the stirrer, feed nitrogen into the reactor, and heat to 60°C.

[0060] ②Add the initiator, continue to feed nitrogen into the reactor, and heat to 90°C.

[0061] ③After 20 minutes, add acrylic acid and glycidyl methacrylate and react...

Embodiment 3

[0067] A kind of formaldehyde trapping agent, raw material ratio is as follows by mass: 60 parts of acrylic acid, 40 parts of glycidyl methacrylate, 30 parts of glycine, 30 parts of glutamic acid, 80 parts of hydroxylamine, 25 parts of ethanol, 30 parts of urea, 25 parts Parts of glucose, 2 parts of ammonium persulfate, 1 part of silicon dioxide, 30 parts of sodium carbonate, 30 parts of PEI (molecular weight 1300), 40 parts of sodium citrate, 5000 parts of deionized water.

[0068] The preparation method of above-mentioned formaldehyde trapping agent, comprises the steps:

[0069] ① In parts by mass, add deionized water, glycine, glutamic acid, hydroxylamine, ethanol, urea, and glucose into the stirrer, feed nitrogen into the reactor, and heat to 80°C.

[0070] ②Add the initiator, continue to feed nitrogen into the reactor, and heat to 90°C.

[0071] ③After 10 minutes, add acrylic acid and glycidyl methacrylate and react for 10 hours.

[0072] ④ Add silicon dioxide, stir fo...

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Abstract

The invention discloses a formaldehyde catching agent and a preparation method thereof. The formaldehyde catching agent comprises, by weight, 20-80 parts of acrylic acid, 20-80 parts of polymeric monomers, 20-80 parts of amino acid, 50-100 parts of hydroxylamine, 5-30 parts of ethyl alcohol, 3-30 parts of urea, 3-30 parts of carbohydrates, 1-10 parts of initiating agents, 1-40 parts of dispersing agents, 5-70 parts of additives, 3-30 parts of acidity regulators, 10-50 parts of sodium citrate and 3000-5000 parts of deionized water. The prepared formaldehyde catching agent can efficiently and rapidly remove formaldehyde and is low in cost and simple in preparation method, raw materials of the catching agent are free from toxicity and damage, secondary pollution is avoided, and mass production is facilitated.

Description

technical field [0001] The invention relates to a formaldehyde scavenger and a preparation method thereof, belonging to the technical field of chemical industry. Background technique [0002] Formaldehyde is a colorless, poisonous and harmful gas with a strong pungent smell. It is a raw material widely used in industry. Due to its wide application in various materials, especially building materials, formaldehyde has become a major gaseous pollutant. Long-term exposure to excessive formaldehyde will cause serious harm to the body, ranging from discomfort to the eyes and throat, to severe nausea, vomiting, shortness of breath, and chest tightness, and even death. Therefore how to reduce the concentration of formaldehyde in the air is a very important issue. [0003] In the traditional formaldehyde removal method, the adsorption efficiency of activated carbon and other substances for formaldehyde is low, while the adsorption rate of formaldehyde by plants such as pothos, ivy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/90B01D53/72C08F220/06C08F220/32
CPCB01D53/8668B01D53/90B01D2251/2067B01D2251/70C08F220/06C08F220/32C08F220/325
Inventor 杨朕杨维本胡宇翀张少鹏
Owner 江苏宁而净环保科技有限公司
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