CN1526470A - Free formaldehyde eliminating agent and its prepn process - Google Patents
Free formaldehyde eliminating agent and its prepn process Download PDFInfo
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- CN1526470A CN1526470A CNA031583172A CN03158317A CN1526470A CN 1526470 A CN1526470 A CN 1526470A CN A031583172 A CNA031583172 A CN A031583172A CN 03158317 A CN03158317 A CN 03158317A CN 1526470 A CN1526470 A CN 1526470A
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- free formaldehyde
- sulfuric acid
- formaldehyde
- nonyl phenol
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Abstract
The present invention is free formaldehyde eliminating agent and its preparation process. The free formaldehyde eliminating agent consists of water, stearamide, sulfuric acid, polysodium acrylate, nonyl phenol oxethyl compound, etc. and is prepared through synthesis under heating condition. When the free formaldehyde eliminating agent in 1 % is added into free formaldehyde solution of 10 ppm concentration, the free formaldehyde eliminating rate may reach 76 % in 10 min. The free formaldehyde eliminating agent is colorless, non-toxic, smell-less and suitable for use in eliminating free formaldehyde in household fitment and production of plywood and paint.
Description
Technical field
The present invention relates to a kind of free-formaldehyde scavenger and preparation method thereof.
Background technology
Show according to authoritative data, generally be used as glued board, core-board, medium density fibre board (MDF) and the particieboard etc. of interior decoration, the adhesive that uses is with the Lauxite of formaldehyde as main component, in the sheet material residual free formaldehyde can be gradually towards periphery environment discharge, it is the main body of room air pollution, the other kinds ornament materials that contains the formaldehyde composition and might distribute to environment, such as the wall paster, chemical fibre carpet, foamed plastics, paint and plastics etc.At above-mentioned situation, corresponding 10 of the indoor decorating material limits of harmful substances standards of having put into effect of country, with standard production, control is polluted.Yet the artificial board on the market exists ichthyosauru and mixes the pearl phenomenon, shows that according to authoritative department random checking result 30% above artificial board formaldehyde content overproof is still arranged.Therefore eliminate formaldehyde and pollute, extremely urgent.
Consult related data, the report of disclosed reduction formaldehyde has: use polyvinyl alcohol, melamine and thiocarbamide mixture, use chitosan as the sealing absorbent.Its effect of eliminating free formaldehyde is limited.Disclosed Chinese patent application: application number 01140051 disclosed formaldehyde eliminating agent and production technology thereof, its weak point is that the elimination factor of free formaldehyde is low.And own disclosed Chinese patent application: application number 02138527 disclosed formaldehyde eliminating agent and preparation method thereof, its shortcoming are the cost height.
Summary of the invention
The object of the present invention is to provide a kind of remover and the preparation technology's method thereof that can eliminate free formaldehyde basically, free-formaldehyde scavenger can be eliminated free formaldehyde in the water body, being used for formaldehyde-containing wastewater handles, also can eliminate free formaldehyde in the wood-based plate, be suitable for eliminating free formaldehyde in Wood-based Panel Production enterprise, the house decoration process, play the effect of environment purification.
The present invention is achieved through the following channels:
It mainly is made up of free-formaldehyde scavenger water, stearmide, sulfuric acid, Sodium Polyacrylate, nonyl phenol ethoxy compound etc.
The free-formaldehyde scavenger preparation method is: water,, raw material such as stearmide, sulfuric acid, Sodium Polyacrylate, nonyl phenol ethoxy compound, synthesize by under the heating condition.
When chemical reaction during to second technology, add the nonyl phenol ethoxy compound, can increase free-formaldehyde scavenger stability, strengthen penetrating power, reach and improve free formaldehyde and eliminate effect.
Stearmide is under effect of sulfuric acid, can absorb free formaldehyde, wherein Sodium Polyacrylate plays the effect of covering, seizure formaldehyde, and the nonyl phenol ethoxy compound can increase the stability of free-formaldehyde scavenger, have stronger penetrating power, improve free formaldehyde and eliminate effect.
In this course of reaction, formaldehydeless release, or other poisonous and harmful substance generation can not cause secondary pollution, meet national requirements for environmental protection fully.
The free-formaldehyde scavenger of the present invention's preparation has following advantage:
1, at normal temperatures and pressures, can eliminate free formaldehyde, in use not need special environment condition.
2, free formaldehyde is eliminated the efficient height.Process our province authoritative inspection organization: Fujian Province Central Inspect Station's test, containing 10ppm free formaldehyde solution and 1% free-formaldehyde scavenger effect 10 minutes, the free formaldehyde elimination factor reaches more than 76%." test report " proves that the formaldehyde elimination factor reaches 78%.
3, the transparency liquid of this product colorless and odorless is easy to use, can not produce secondary pollution.
4, the formaldehyde-containing wastewater of handling through free-formaldehyde scavenger can satisfy the national environmental protection emission request fully.
5, in house decoration, use free-formaldehyde scavenger, can eliminate pungent formaldehyde odor rapidly, effectively eliminate the harm that formaldehyde causes environment.
6, in coating or Lauxite, can suitably add free-formaldehyde scavenger, the control free formaldehyde problem that exceeds standard meets indoor decorating material limits of harmful substances standard-required: GB18582-2001.
Attached: our province authoritative inspection organization Fujian Province Central Inspect Station in July, 2003 " test report ".
The specific embodiment
Free-formaldehyde scavenger preparation method step is described below:
1, Jiang Shui, stearmide, sulfuric acid, Sodium Polyacrylate drop in the reactor together, heat while stirring, and temperature is controlled at 30～60 ℃, reaction insulation 1～3 hour.
2, add the nonyl phenol ethoxy compound, speed of agitator is controlled at 200～300 rev/mins, stirs about 30 minutes.
3, add dilute sulfuric acid at last, transfer about PH to 5, reaction mass is reduced to room temperature, filters and packages then to be finished product.
The each component percentage by weight is respectively in above-mentioned three steps:
Water: 85～95%
Stearmide: 5～20%
Sulfuric acid: 0.1～5%
Sodium Polyacrylate: 0.1～3%
Nonyl phenol ethoxy compound: 0.5～12%
Embodiment 1:
In 100 parts of water of present embodiment, add 8 parts of stearmides respectively, 0.5 part in sulfuric acid, 0.5 part of Sodium Polyacrylate, 0.6 part of nonyl phenol ethoxy compound, under 30～60 ℃ of conditions, stirring reaction, be incubated after 1～3 hour, can filter and obtain finished product, water white free-formaldehyde scavenger.
Embodiment 2:
In 100 parts of water of present embodiment, add 10 parts of stearmides respectively, 2 parts in sulfuric acid, 1 part of Sodium Polyacrylate, 3 parts of nonyl phenol ethoxy compounds, under 30～60 ℃ of conditions, stirring reaction, be incubated after 1～3 hour, can filter and obtain finished product, water white free-formaldehyde scavenger.
Embodiment 3:
In 100 parts of water of present embodiment, add 13 parts of stearmides respectively, 3 parts in sulfuric acid, 2 parts of Sodium Polyacrylates, 4 parts of nonyl phenol ethoxy compounds, under 30～60 ℃ of conditions, stirring reaction, be incubated after 1～3 hour, can filter and obtain finished product, water white free-formaldehyde scavenger.
Claims (4)
1, a kind of free-formaldehyde scavenger is characterized in that: mainly be made up of water, stearmide, sulfuric acid, Sodium Polyacrylate, nonyl phenol ethoxy compound etc.
2, a kind of preparation method of free-formaldehyde scavenger is characterized in that: water,, raw material such as stearmide, sulfuric acid, Sodium Polyacrylate, nonyl phenol ethoxy compound, synthesize by under the heating condition.
3, by the preparation method of the described free-formaldehyde scavenger of claim 2, it is characterized in that:
A, Jiang Shui, stearmide, sulfuric acid, Sodium Polyacrylate drop in the reactor together, heat while stirring, and temperature is controlled at 30～60 ℃, reaction insulation 1～3 hour;
B, adding nonyl phenol ethoxy compound, speed of agitator is controlled at 200～300 rev/mins, stirs about 30 minutes;
C, add dilute sulfuric acid at last, transfer about PH to 5, reaction mass is reduced to room temperature, filters and packages then to be finished product.
4, by the preparation method of the described free-formaldehyde scavenger of claim 3, it is characterized in that: the each component percentage by weight is respectively in the preparation process raw material:
Water: 85～95%
Stearmide: 5～20%
Sulfuric acid: 0.1～5%
Sodium Polyacrylate: 0.1～3%
Nonyl phenol ethoxy compound: 0.5～12%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031583172A CN1526470A (en) | 2003-09-19 | 2003-09-19 | Free formaldehyde eliminating agent and its prepn process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031583172A CN1526470A (en) | 2003-09-19 | 2003-09-19 | Free formaldehyde eliminating agent and its prepn process |
Publications (1)
| Publication Number | Publication Date |
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| CN1526470A true CN1526470A (en) | 2004-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA031583172A Pending CN1526470A (en) | 2003-09-19 | 2003-09-19 | Free formaldehyde eliminating agent and its prepn process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797573A (en) * | 2016-03-24 | 2016-07-27 | 大连晟景科技有限公司 | Gel-type enzyme formaldehyde removing deodorant and preparation method and application thereof |
| 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 |
| CN109772145A (en) * | 2017-11-13 | 2019-05-21 | 霍尼韦尔国际公司 | For removing the material of air pollutants |
-
2003
- 2003-09-19 CN CNA031583172A patent/CN1526470A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797573A (en) * | 2016-03-24 | 2016-07-27 | 大连晟景科技有限公司 | Gel-type enzyme formaldehyde removing deodorant and preparation method and application thereof |
| CN105797573B (en) * | 2016-03-24 | 2018-06-19 | 大连晟景科技有限公司 | A kind of gel-type ferment is except formaldehyde deodorization air cleaning agent and its preparation method and application |
| 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 |
| CN109772145A (en) * | 2017-11-13 | 2019-05-21 | 霍尼韦尔国际公司 | For removing the material of air pollutants |
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