CN103551028A - Reaction type formaldehyde scavenger with aminopolyol as active matter and preparation method thereof - Google Patents
Reaction type formaldehyde scavenger with aminopolyol as active matter and preparation method thereof Download PDFInfo
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- CN103551028A CN103551028A CN201310468112.5A CN201310468112A CN103551028A CN 103551028 A CN103551028 A CN 103551028A CN 201310468112 A CN201310468112 A CN 201310468112A CN 103551028 A CN103551028 A CN 103551028A
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- amino
- formaldehyde
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- dihydroxylic alcohols
- formaldehyde scavenger
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 215
- 239000002516 radical scavenger Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 4
- 238000006757 chemical reactions by type Methods 0.000 title 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 22
- 150000001298 alcohols Chemical class 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- UXFQFBNBSPQBJW-UHFFFAOYSA-N 2-amino-2-methylpropane-1,3-diol Chemical compound OCC(N)(C)CO UXFQFBNBSPQBJW-UHFFFAOYSA-N 0.000 claims description 5
- OQUUIRTYQSETEY-UHFFFAOYSA-N 2-amino-4-methylbenzene-1,3-dicarboxylic acid Chemical class CC1=C(C(=C(C(=O)O)C=C1)N)C(=O)O OQUUIRTYQSETEY-UHFFFAOYSA-N 0.000 claims description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 3
- 150000001414 amino alcohols Chemical class 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 229940043237 diethanolamine Drugs 0.000 claims description 3
- 238000011067 equilibration Methods 0.000 claims description 3
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical class CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000002808 molecular sieve Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 2
- KJJPLEZQSCZCKE-UHFFFAOYSA-N 2-aminopropane-1,3-diol Chemical class OCC(N)CO KJJPLEZQSCZCKE-UHFFFAOYSA-N 0.000 claims 2
- KQIGMPWTAHJUMN-UHFFFAOYSA-N 3-aminopropane-1,2-diol Chemical class NCC(O)CO KQIGMPWTAHJUMN-UHFFFAOYSA-N 0.000 claims 2
- 239000000126 substance Substances 0.000 abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 4
- 238000013459 approach Methods 0.000 abstract description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 238000005882 aldol condensation reaction Methods 0.000 abstract description 2
- 150000001923 cyclic compounds Chemical class 0.000 abstract description 2
- 125000003277 amino group Chemical group 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 230000002000 scavenging effect Effects 0.000 abstract 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 12
- -1 amino polyol Chemical class 0.000 description 11
- 239000000047 product Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 229920005862 polyol Polymers 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000004408 titanium dioxide Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 238000005575 aldol reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 238000005935 nucleophilic addition reaction Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 230000000711 cancerogenic effect Effects 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 231100000315 carcinogenic Toxicity 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000004064 dysfunction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229920002866 paraformaldehyde Polymers 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UZUMQQZPGOFJBQ-UHFFFAOYSA-N 1-aminopropane-1,2-diol Chemical class CC(O)C(N)O UZUMQQZPGOFJBQ-UHFFFAOYSA-N 0.000 description 1
- DOGCTUGYGZGSFX-UHFFFAOYSA-N 1-aminopropane-1,3-diol Chemical class NC(O)CCO DOGCTUGYGZGSFX-UHFFFAOYSA-N 0.000 description 1
- MXZROAOUCUVNHX-UHFFFAOYSA-N 2-Aminopropanol Chemical compound CCC(N)O MXZROAOUCUVNHX-UHFFFAOYSA-N 0.000 description 1
- 101150035093 AMPD gene Proteins 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 206010037423 Pulmonary oedema Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000013566 allergen Substances 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000000098 azimuthal photoelectron diffraction Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000003471 mutagenic agent Substances 0.000 description 1
- 231100000707 mutagenic chemical Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 238000004375 physisorption Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- 208000005333 pulmonary edema Diseases 0.000 description 1
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- 238000005070 sampling Methods 0.000 description 1
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Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a formaldehyde scavenger. The formaldehyde scavenger is composed of a carrier and amino dihydric alcohol loaded on the carrier, wherein amino dihydric alcohol accounts for 5 to 15 wt% of the mass of the carrier. The formaldehyde scavenger has no toxicity and does not pose secondary pollution; besides physical adsorption of the carrier, the scavenger depends on hydroxyl groups of aminopolyol and amino groups in the scavenger for chemical removal of formaldehyde, and a main formaldehyde removal approach is to allow two hydroxyl groups in the scavenger and formaldehyde to undergo aldol condensation so as to produce a stable cyclic compound; and the scavenger has the characteristics of a fast scavenging speed, a small usage amount, low cost, etc.
Description
Technical field
The present invention relates to a kind of removal technology of volatile organic matter, relate in particular to a kind of amino polyol formaldehyde scavenger loading on carrier, this material can effectively be removed airborne free formaldehyde.
Background technology
Formaldehyde is preferentially controlled formaldehyde on list for more highly toxic material ， China toxic chemical and is in second.Formaldehyde is defined as carcinogenic and causes deformed material by the World Health Organization, is generally acknowledged allergen, is also one of potential strong mutagen.Research shows, formaldehyde has strong carcinogenic and tumor promotion.Formaldehyde is mainly manifested in the aspects such as allotriosmia, stimulation, allergy, abnormal pulmonary function, dysfunction of liver and immunologic dysfunction on the impact of health.Its concentration reaches 0.06-0.07mg/m in every cubic metres of air
3time, will there is slight asthma in children.When formaldehyde content in indoor air is 0.1mg/m
3time, just there are peculiar smell and sense of discomfort; Reach 0.5mg/m
3time, can stimulate eyes, cause and shed tears; Reach 0.6mg/m3, can cause throat discomfort or pain.When concentration is higher, the vomiting that can cause nausea, coughs uncomfortable in chest, the even pulmonary edema of panting; Reach 30mg/m
3time, meeting is causing death immediately
In recent years, along with being rooted in the hearts of the people gradually of indoor decoration theory, the degree of interior decoration day by day strengthens, the kind of finishing material day by day increases, this has wherein all used the raw material containing formaldehyde in many material, and for the lower finishing material of some credit ratings, content of formaldehyde is wherein higher.These materials will slowly discharge its contained formaldehyde in the very long stage after finishing completes, thereby become the long-time pollution source of room air.
Based on this situation, the indoor free formaldehyde of many removings method and product be developed.From the principle of its removing, can be divided into two classes: Physical is removed and chemical method is removed.So-called Physical, refer to formaldehyde scavenger only with air in free formaldehyde molecule generation physisorption, utilize physical surface absorption to catch formaldehyde, thereby reach the object that reduces indoor formaldehyde content.This series products is all generally the porous material of high-specific surface area, if present market is the bamboo charcoal sold etc.; Other product adopts chemical method, the conventional chemical formaldehyde scavenger of existing market mainly contains two classes, and a class is to take inorganic active thing as main body, as the composite product of titanium dioxide, its main active ingredient is titanium dioxide, and assistant agent is dispersant, defoamer, water etc.Its principle is to utilize the photocatalysis characteristic of titanium dioxide, the in the situation that of illumination, free formaldehyde molecule is further decomposed into harmless carbon dioxide and water; In addition, also there are some load catalyst type materials, as CN200810126792.1 discloses a kind of absorbing formaldehyde material that nm of gold is activated centre of take, CN200910047376.7 discloses a kind ofly take noble metal platinum as activated centre, the low temperature formaldehyde eliminating agent that is aided with other metal oxide auxiliary agents, similar approach also has CN200910098633.X and CN200510028537.X etc.The advantages such as another large class is for take organic active thing as main body, as to take urea, amino alcohol etc. be formaldehyde absorbing center, has absorbing formaldehyde speed faster to series products, and absorption degree of reversibility is low, have good application in industries such as timber processing.As patent CN1548164A has proposed take aminopropanol as raw material, reach with formaldehyde generation Manny radical reaction the object of eliminating formaldehyde.
Certainly, the said goods can reach absorption or degradation of formaldehyde molecule to a certain extent, alleviates the effect of room air pollution.But above-mentioned two series products also exist certain deficiency.Physical absorbing formaldehyde be surface action power a little less than, absorption saturated concentration lower, adsorption rate is also slower; And in chemical method, it is ultraviolet band that the chemical scavenger that the titanium dioxide of take is active component exists the best photodissociation wave band of titanium dioxide, under radiation of visible light, activity is not strong, product reactivity correlative factor complicated (purity of titanium dioxide, granularity, concentration etc.), the problem such as processed complex, constant product quality are poor; Although other catalyst material also has good elimination effect of formaldehyde, but often to use noble metal, and because these fine particle of noble metal lack corresponding stabilizing agent conventionally, in the process of using, easily run off, reunite, cause life-span of using not long, thus further increased the cost of use and cause convenient not.The material that the organic matters such as urea, amino alcohol of take are activated centre, also exists equilibrium concentration higher, is easy to adsorb saturated and organic matter and is attached to the shortcomings such as difficulty is larger., therefore, developing effective free formaldehyde scavenger is a significant job.
Summary of the invention
An object of the present invention is to provide a kind of response type formaldehyde scavenger that amino polyol is active matter of take, this material is load amino polyol on carrier, by carrying out with formaldehyde the elimination that chemical reaction is realized Formaldehyde in Environment.
Another object of the present invention is to provide a kind of amino dihydroxylic alcohols, take that it makes formaldehyde scavenger on carrier as active matter is carried on, and realizes Formaldehyde in Environment is carried out to chemistry elimination.
, by carrier and the amino dihydroxylic alcohols being carried on carrier, formed.
Applicable carrier has: active carbon, porous aluminum oxide, silica, molecular sieve and diatomite etc.
The 5wt%-15wt% that the amino dihydroxylic alcohols using is carrier quality, is a series of straight chains or short-chain branch compound, and structure is shown below
In formula, the alkane that A is C1 to C5.
Applicable compound has: amino-1,2 propane diols of 3-, amino-1,3 propane diols of 2-, AMPD, APED, amino-4 methyl isophthalic acids of 5-, 4 pentanediols and diethanol amine one or more.
In above-mentioned material, amino polyol compounds can form cyclic acetal to eliminate formaldehyde by aldol reaction, and amino also can be eliminated formaldehyde by nucleophilic addition, and the equilibration time of removing formaldehyde is 1.5-24 hour.The compare formaldehyde scavenger (as: CN1548164A) of alkamine, the formaldehyde removing of amido polyol has larger advantage in reaction mechanism, because the aldol condensation product with formaldehyde is owing to having formed stable cyclic products, this response type formaldehyde removing material has that adsorption rate is fast, equilibrium concentration is low, the absorption significant advantages such as the reversible and absorption life-span is long hardly.
A kind of preparation method of formaldehyde scavenger, above-mentioned various amino dihydroxylic alcohols liquid (or ethanolic solution of its solid) are evenly sprayed on to carrier surface, the mass percent of amino dihydroxylic alcohols and carrier is 5wt%-15wt%, subsequently material is constantly stirred, until liquid is by all evenly absorption of carrier, puts into baking oven and dry 12 hours at 80 ℃.
Above-mentioned composite detects through the GB/T16129-1995 of People's Republic of China (PRC) method, all has good free formaldehyde and removes effect.
Tool of the present invention has the following advantages:
(1) formaldehyde scavenger itself is nontoxic, can not cause secondary pollution;
(2) except the physical absorption of carrier itself, this material relies on the hydroxyl of polyalcohol and the amino PARA FORMALDEHYDE PRILLS(91,95) in material to carry out chemistry elimination, main except formaldehyde approach be two hydroxyls and the formaldehyde generation aldol reaction in scavenger, produce stable cyclic compound;
(3) removing speed is fast;
(4) formaldehyde scavenger consumption is less;
(5) formaldehyde scavenger cost is lower.
The specific embodiment
Below by specific embodiment, technical scheme of the present invention is elaborated, cited embodiment is to describe in detail technical scheme of the present invention, but not limits the scope of the invention.
The following embodiment of the present invention, can adopt a kind of following method to produce:
By measure amino polyol compounds liquid (or ethanolic solution of its solid) be evenly sprayed on carrier surface, the mass percent of compound and carrier is 5wt%-15wt%, subsequently material is constantly stirred, until liquid is by all evenly absorption of carrier, this material is put into baking oven and at 80 ℃, dry 12 hours.
The material of producing is tested by the following specific embodiment:
Test is at a 2.5M
3square box in carry out, first the air before experiment in casing uses formaldehyde saturated, and suitably to adjust content of formaldehyde be certain value (0.6 ± 0.01 mg/m
3), the effective dose of each formaldehyde scavenger is 2 grams.Method adopts GB/T16129-1995 method, every 0.5 hour once sampling, finally reaches formaldehyde absorption balance.Experimental result is in Table 1.
Table 1
Comparative example 1-13, the results are shown in Table 2
Table 2
From above-mentioned comparative example, although amino monohydric alcohol equilibration time is shorter, but the successful of its absorbing formaldehyde is not as good as amino dihydroxylic alcohols, this may be that amino monohydric alcohol is mainly to eliminate formaldehyde by amido and formaldehyde carbonyl generation nucleophilic addition, amino dihydroxylic alcohols is except occurring the nucleophilic addition of amino PARA FORMALDEHYDE PRILLS(91,95) carbonyl, and the reason that can also form stable cyclic products by aldol reaction and formaldehyde causes; In addition, visible by comparative example, carrier also has certain absorbing formaldehyde effect, but owing to being physical absorption, so effect is limited.
By above contrast, can reach a conclusion, because the reaction mechanism of chemisorbed is different, the absorbing formaldehyde successful of amido polyol is better than amino monohydric alcohol, after complex carrier, amido polyol has obtained larger reaction specific area, thereby has formed the good formaldehyde removing material of a class.
Claims (9)
1. a formaldehyde scavenger, is comprised of carrier and the amino dihydroxylic alcohols being carried on carrier.
2. formaldehyde scavenger according to claim 1, is characterized in that described amino alcohol is the 5wt%-15wt% of carrier quality.
3. formaldehyde scavenger according to claim 1, is characterized in that described carrier is one or more in active carbon, porous aluminum oxide, silica, molecular sieve and diatomite.
4. formaldehyde scavenger according to claim 1, is characterized in that described amino dihydroxylic alcohols is
In formula, the alkane that A is C1 to C5.
5. formaldehyde scavenger according to claim 1, it is characterized in that described amino dihydroxylic alcohols is 3-amino-1,2 propane diols, 2-amino-1,3 propane diols, 2-amino-2-methyl-1, ammediol, 2-amino-2-ethyl-1, amino-4 methyl isophthalic acids of ammediol, 5-, 4 pentanediols and diethanol amine one or more.
6. the preparation method of the described formaldehyde scavenger of one of claim 1-5, the ethanolic solution of amino dihydroxylic alcohols liquid or its solid is evenly sprayed on to carrier surface, the mass percent of described amino dihydroxylic alcohols and described carrier is 5wt%-15wt%, subsequently material is constantly stirred, until liquid is by all evenly absorption of carrier, puts into baking oven and dry 12 hours at 80 ℃.
7. a purposes for amino dihydroxylic alcohols, is characterized in that being carried on carrier and being used as formaldehyde scavenger as active matter, it is characterized in that described amino dihydroxylic alcohols is
In formula, the alkane that A is C1 to C5.
8. the purposes of amino dihydroxylic alcohols according to claim 7, it is characterized in that described amino dihydroxylic alcohols is 3-amino-1,2 propane diols, 2-amino-1,3 propane diols, 2-amino-2-methyl-1, ammediol, 2-amino-2-ethyl-1, amino-4 methyl isophthalic acids of ammediol, 5-, 4 pentanediols and diethanol amine one or more.
9. according to the purposes of the amino dihydroxylic alcohols described in claim 7 or 8, it is characterized in that it is 1.5-24h that described formaldehyde scavenger removing formaldehyde reaches equilibration time.
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| CN104607151A (en) * | 2015-02-13 | 2015-05-13 | 福建省鑫森炭业股份有限公司 | Formaldehyde removal active carbon and preparation method thereof |
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| CN106902627A (en) * | 2017-03-16 | 2017-06-30 | 大工（青岛）新能源材料技术研究院有限公司 | Administer the compound hydrogen peroxide agent and preparation method and application of indoor free formaldehyde |
| CN106925102A (en) * | 2015-12-31 | 2017-07-07 | 广州亿奇科技股份有限公司 | A kind of formaldehyde remover and preparation method thereof |
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| CN110711556A (en) * | 2018-07-13 | 2020-01-21 | 上海骏恺环境工程股份有限公司 | Manufacturing method of modified activated carbon for purifying formaldehyde in air |
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