CN100536657C - Composite efficient aldehyde insecticide - Google Patents
Composite efficient aldehyde insecticide Download PDFInfo
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- CN100536657C CN100536657C CNB2005100252840A CN200510025284A CN100536657C CN 100536657 C CN100536657 C CN 100536657C CN B2005100252840 A CNB2005100252840 A CN B2005100252840A CN 200510025284 A CN200510025284 A CN 200510025284A CN 100536657 C CN100536657 C CN 100536657C
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- glutaraldehyde
- insecticide
- composite efficient
- quaternary amine
- aldehyde
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Abstract
An efficient composite biocide for killing the bacteria, fungi, algae, legionella, etc in circulated cooling water system is proportionally prepared from glutaric dialdehyde, quaternary ammonium salt, assistant, etc.
Description
Technical field:
The invention belongs to water treatment agent production and application technology technical field, particularly a kind of composite efficient aldehyde insecticide, it has significant bactericidal effect at the bacterium in the open type recirculating cooling water system, fungi, algae, Legionella harm.
Background technology:
Contain bacterium, fungi, the supplementing water of the microorganism of algae constantly enters recirculating cooling water system, meanwhile, the cooling water that the spray quinoline gets off in the cooling tower captures a large amount of microorganisms again and enters cooling water system from the air that adverse current is met, the temperature of cooling water designs between 32～42 ℃ usually, this temperature range is particularly conducive to bacterium again, fungi, algae grows, processing medium in the cooling water system is (as the oils of oil plant, the synthetic ammonia of nitrogen fertilizer plant) be bled into cooling water system, for wherein microorganism provides nutrient source, dissolved in a large amount of oxygen in the spray quinoline aeration process of cooling water in cooling tower, for the oxygen microorganism provides necessary condition, and the mud that suspension forms in the cooling water provides sanctuary for anerobe, sulphate in the cooling water then becomes the source of anerobe-sulfate reducing bacteria institute energy requirement, therefore, open-type cooling water system has become bacterium, fungi, huge trap of Legionella etc. and incubator.
The go out Main Ingredients and Appearance of agent of composite efficient aldehyde sterilization is a glutaraldehyde:
1, the structural formula of glutaraldehyde is
Pure glutaraldehyde is a colourless transparent oil liquid, and the peculiar taste that slightly stimulates is arranged, and is soluble in water, can mix with water and collude, and it is soluble in organic solvents such as ambitious goal ether, ethanol, and is nonflammable, no flash-point.
2, the bactericidal property of glutaraldehyde and stripping performance, glutaraldehyde can Profilin the synthetic a certain process of matter, thereby make the protein interior structural change and solidify, it carries out the cross-linking chemistry reaction by the amino of cell outer surface, brings into play its bactericidal activity.Active material concentration only 15% glutaraldehyde adds 50mg/l and 100mg/l in the entry, to the sterilizing rate of heterotrophic bacteria, iron bacteria, Legionella in the cycle water, very high sterilizing rate is arranged promptly behind the 2h, and behind the 72h, its sterilizing rate also can remain on more than 90%.
Under alkali condition, the bactericidal property of glutaraldehyde is better, and this will be very favourable for use glutaraldehyde in alkaline cold water process.
Glutaraldehyde and phosphorus family corrosion inhibitor and antisludging agent have good compatibility, and glutaraldehyde does not influence the corrosion inhibition of these medicaments.
Behind the 1h, the foundry loam amount just obviously increases in the water in the glutaraldehyde adding cycle water, and behind 8h, glutaraldehyde also continues to peel off in performance the effect of foundry loam.
At present, most of factory open type recirculating cooling water system all adopts and does not add the alkaline cold water process that pH value is transferred in acid, its pH value is mostly between 8.0～9.3, at this moment chlorine main existence form in water will no longer be the very capable hypochlorous acid of killing livestock, but the relatively poor hypochlorite of the ability of killing livestock, rapid hydrolysis was lost efficacy, mantoquita will precipitate, chlorophenol will change the relatively poor phenates of the effect of killing livestock into, dibromo nitrilo propionamide is dashed forward hydrolysis destroyed, therefore, the appearance of glutaraldehyde will be a kind of Biocidal algae-killing agent that comparatively is suitable for of widely used alkaline cold water process.
3, glutaraldehyde is to the influence of environment, and the toxicity of glutaraldehyde water solution is very low, the LD of 2% (being equivalent to 20000mg/l) glutaraldehyde water solution
50(small white mouse is oral) is 12.6ml/kg, near the level of element chemistry product, to the working concentration of cooling water recommendation (50mg/l, 100mg/l) under, glutaraldehyde does not almost have toxicity.
Summary of the invention:
The purpose of this invention is to provide a kind of composite efficient aldehyde insecticide, solve the not good technical problem of existing product result of use.
For solving the problems of the technologies described above, the present invention is achieved in that
A kind of composite efficient aldehyde insecticide is characterized in that: by glutaraldehyde 20%～40%, and quaternary amine 20%～40%, auxiliary agent 5%～20%, solid content 25%～40%.
By glutaraldehyde 20%～30%, quaternary amine 20%～30%, auxiliary agent 5%～10%, solid content 25%～35%.
By glutaraldehyde 30%～40%, quaternary amine 30%～40%, auxiliary agent 10%～20%, solid content 35%～40%.
Key problem in technology of the present invention:
1, select and to produce synergy, complementation with glutaraldehyde, and compatibility is good, add that concentration is low, efficient, wide spectrum, low toxicity, little, safe, the cheap non-oxidizable Biocidal algae-killing agent monomer of ph value influence.
2, TW-206 production technology is simple, easy operating.Freezing point is low, can be suitable for using in the winter time, still or low bubble, and the user uses control convenient.
The present invention has following technique effect:
1. because the penetration capacity of glutaraldehyde itself, can not be penetrated into the bottom of foundry loam dirt thing and corrosion product, can not kill dirt bacterium down, for increasing its activity, select low alveolitoid quaternary ammonium salt cationic surfactant for use, itself has the sterilization algae removal effect, has very strong infiltration, peel off effect, after it and glutaraldehyde are composite, can improve bactericidal effect.
2. quaternary amine energy strong adsorption has been damaged the plasmalemma of control cell permeability on the thalline surface, and bacterium is caused death.
The lipophilic group of quaternary amine can be partly dissolved sulfate reducing bacteria surface fat wall.
Glutaraldehyde, quaternary amine have an adsorption group respectively
-CHO and
Central atom O, N in the group, they all have a not share electron pair, can produce affinity to metal, and these two groups are adsorbed as polar group by the metal surface easily, make the energy of the metal surface state that tends towards stability, corrosion reaction is difficult to carry out, and nonpolar group metal dorsad stretches towards the water direction, aligns, this will form layer of metal surface adsorbed film, hinder water and spread to the metal surface, thereby, make metal erosion speed slow down.
Embodiment:
A kind of composite efficient aldehyde insecticide is characterized in that: by glutaraldehyde 20%～40%, and quaternary amine 20%～40%, auxiliary agent 5%～20%, solid content 25%～40%.
Embodiment one:
TW-206 ring composite efficient aldehyde insecticide is characterised in that: by glutaraldehyde 20%～30%; Quaternary amine 20%～30% auxiliary agent 5%～10%, solid content 25%～35%.
Embodiment two:
TW-206 ring composite efficient aldehyde insecticide is characterised in that: by glutaraldehyde 30%～40%; Quaternary amine 30%～40% auxiliary agent 10%～20%, solid content 35%～40%.
By following Analysis on action mechanism and every test result of use of the present invention is described:
Through static bactericidal assay, the result is as follows:
One, to the heterotroph bactericidal assay:
Two, to the sulfatereducting bacteria bactericidal assay:
Three, to the iron bacteria bactericidal assay:
Four, to the Legionella bactericidal assay:
Three, conclusion
TW-206 ring composite efficient aldehyde insecticide all technical has all reached designing requirement, kills The bacterium algae removal performance detects through Nanjing University of Chemical Technology, has good sterilization, algae removal effect, and warp The inspection check of Shanghai City preventive medicine research institute, good to the bactericidal effect of Legionella.
Claims (3)
1, a kind of composite efficient aldehyde insecticide is characterized in that: by glutaraldehyde 20%～40%, and quaternary amine 20%～40%, auxiliary agent 5%～20%, solid content 25%～40%; Described quaternary amine is low alveolitoid quaternary ammonium cation surfactant.
2, composite efficient aldehyde insecticide according to claim 1 is characterized in that: by glutaraldehyde 20%～30%, and quaternary amine 20%～30%, auxiliary agent 5%～10%, solid content 25%～35%.
3, composite efficient aldehyde insecticide according to claim 1 is characterized in that: by glutaraldehyde 30%～40%, and quaternary amine 30%～40%, auxiliary agent 10%～20%, solid content 35%～40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100252840A CN100536657C (en) | 2005-04-21 | 2005-04-21 | Composite efficient aldehyde insecticide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100252840A CN100536657C (en) | 2005-04-21 | 2005-04-21 | Composite efficient aldehyde insecticide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1853468A CN1853468A (en) | 2006-11-01 |
| CN100536657C true CN100536657C (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100252840A Active CN100536657C (en) | 2005-04-21 | 2005-04-21 | Composite efficient aldehyde insecticide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100536657C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX367166B (en) * | 2009-09-28 | 2019-08-07 | Dow Global Technologies Llc | COMPOSITIONS OF DIBROMOMALONAMIDE and THEIR USE AS BIOCIDES. |
| CN110845170A (en) * | 2019-11-15 | 2020-02-28 | 石家庄铁道大学 | Composite bactericide for concrete in sewage environment and screening method thereof |
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2005
- 2005-04-21 CN CNB2005100252840A patent/CN100536657C/en active Active
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| Publication number | Publication date |
|---|---|
| CN1853468A (en) | 2006-11-01 |
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