CN101530085A - Aqueous emulsion containing diazinon - Google Patents
Aqueous emulsion containing diazinon Download PDFInfo
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- CN101530085A CN101530085A CN200810101940A CN200810101940A CN101530085A CN 101530085 A CN101530085 A CN 101530085A CN 200810101940 A CN200810101940 A CN 200810101940A CN 200810101940 A CN200810101940 A CN 200810101940A CN 101530085 A CN101530085 A CN 101530085A
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- diazinon
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Abstract
The invention relates to a pesticide preparation, in particular to an aqueous emulsion containing diazinon. The aqueous emulsion contains 10 to 60 percent of diazinon, 4 to 8 percent of emulsifying agent, 1 to 3 percent of stabilizing agent, 4 to 8 percent of antifreezing agent, 0.05 to 2 percent of thickening agent and the balance of dispersive medium water; and the aqueous emulsion is prepared by homogenization technique. The pesticide preparation does not use organic solvent, thus having no combustion and explosion danger, having little farm chemical odor and reducing cost and toxicity.
Description
Technical field
The present invention relates to a kind of pesticidal preparations, relate to a kind of aqueous emulsion that contains diazinon specifically.The present invention relates to water-insoluble liquid organophosphorous pesticide diazinon crude oil, add,, make the pesticide processing preparation technique field of high concentration milky liquid aqueous emulsion through the homogenize technical process with emulsifier, stabilizing agent, antifreezing agent, thickener and water.
Technical background
The aqueous emulsion past attempts claims emulsifiable concentrate, for the dispersion of water-insoluble liquid pesticidal crude oil, emulsification, be suspended in
Opaque emulsifiable concentrate pesticidal preparations in the phase medium, thin up emulsion.Concerning the masses that lack agricultural chemicals professional knowledge, be easy to obscure mutually with missible oil commonly used in the past, missible oil is for using agricultural chemicals crude oil, emulsifier, the formulated single-phase clear solution preparation of organic solvent, and thin up just can become opaque emulsion.Aqueous emulsion is a novel form leaved for development field, aqueous emulsion has the advantage of missible oil and cost is lower than missible oil, from the contrast of control efficiency and expenses for prevention and control, just can see that aqueous emulsion has remarkable economic efficiency and social benefit, thereby have development prospect and vitality.Aqueous emulsion can replace a considerable amount of cream preparations, the missible oil kind that particularly China's tonnage is bigger, and become a kind of emerging formulations of pesticide.
Nineteen fifty-seven Wang Junkui studied the scallion oil emulsifiable concentrate, pay product lignosulfite concentrate with paper mill, Yingkou, add Shijingshan steel plant and pay the product scallion oil, mill down in stirring, make scallion oil be dispersed into the little oil droplet of 1-5 micron, increase along with the scallion oil addition, whole system viscosity increases gradually, add suitable water and carry out desaturation, add scallion oil again, continue dispersion grinding, viscosity is increased once more, add entry and scallion oil successively, can make 50-60% scallion oil emulsifiable concentrate, only be 7.5-12% and contain the lignosulfite solids.50-100 times of liquid usefulness, control wintering of fruit tree two spotted spider mite ovum, respond well, but because of scallion oil has poisoning to crop (cotton, beans dish, melon), use is restricted, and is easy to layering during storage, so do not drop into industrial production.
1958 U.S. Shi Duofu chemical company (Stauffer Chemical Company) parathion emulsifiable concentrate commodity selling is arranged.
The Wang Jun Kui was delivered about 25% dichlorodiphenyl trichloroethane emulsifiable concentrate volume trial-production research report in 1963.Its prescription is: ddt powder 25.1%, motor benzene 36.0%, diesel oil 2.0%, subtraction spent pulping liquor solids 3.0%, urea 3.0% draws back powder 0.05%, and water 30.85%, 1962 year is produced 3 tons in Beijing insecticide factory, said preparation is on 3200 rev/mins of centrifuges, and is centrifugal 9 hours, not stratified.50 degree storages 14 days, degree of fixation does not descend, freezing 14 days of-23 degree, freezing 7 days of-50 degree are placed under the room temperature again, still can recover original-pack, the dichlorodiphenyl trichloroethane crystallization do not occur.Cost only is 2/3rds of 25% a dichlorodiphenyl trichloroethane missible oil, and drug effect and missible oil are suitable.
The seventies and the eighties constantly disclose many patents about aqueous emulsions abroad, and organophosphorus pesticide water emulsion is described, have been subjected to pesticidal preparations researcher's concern.
Diazinon (Diazinon) has another name called basudin.Be broad-spectrum organic insecticide, have tag, stomach toxicity, stifling and certain systemic action, can prevent and treat cotton cotten aphid, two-spotted spider mite, rice fulgorid, rice leafhopper, rice-stem borer, paddy stem borer, and corn, wheat, peanut soil pest and can do family and the medication of domestic animals health.Diazinon at present at home, the main preparation variety that circulates on the international market is still for cream preparation.The aromatic hydrocarbon solvent consumption is very big, when promoting the use of environment has been caused huge pressure.
Summary of the invention:
The objective of the invention is to a kind of aqueous emulsion that contains diazinon.
The defective of another object of the present invention in the existing organic phosphor aqueous emulsion process technology of Dinke clothes proposed organophosphorous pesticide diazinon water emulsion formula and processing technology thereof, makes the water emulsion pesticide formulation can be suitable for producing.
Organophosphorous pesticide diazinon aqueous emulsion provided by the present invention is made through homogenize technology by organophosphorous pesticide, emulsifier, stabilizing agent, antifreezing agent, thickener and water.
The selected emulsifier of the present invention is: castor oil polyoxyethylene ether, polyoxyethylene nonylphenol ether, methyl glucoside stearate, polyoxyethylene (20) sorbitan mono-laurate, calcium dodecyl benzene sulfonate, alkylaryl polyoxyethylene, polyoxy third rare ether and alkylaryl formaldehyde resin APEO.
The used stabilizing agent of the present invention is: hydroquinones, expoxy propane base ether, epoxidized soybean oil, tributyl phosphate, epoxychloropropane, alkylphenol polyoxyethylene phosphate, butyl glycidyl ether, phenyl glycidyl ether.They itself promptly are stabilizing agents, are again emulsifier, have double utility, can reduce the consumption of emulsifier.Select for use the criterion of acceptability of stabilizing agent to be: 54 ± 2 degree, heat storage two all resolution ratios are less than 10%.
Antifreezing agent of the present invention is one of following four kinds: ethylene glycol, polyethylene glycol, glycerine, propane diols, isopropyl alcohol, urea.Be best with urea among these four kinds, because the urea source is sufficient, low price, and have the fertilizer efficiency effect, and also can increase the proportion of preparation, accelerate the skyborne sinking speed of droplet, reduce water evaporates and drift distance, be suitable for aircraft and ground ulv spraying.
Thickener that the present invention adopts is xanthans, aluminium-magnesium silicate, sodium cellulose glycolate, polyvinyl alcohol.Described water is deionized water or distilled water, replaces organic solvent in the missible oil as dispersion medium, thereby reduces the pollution to environment.
The prescription of organophosphorous pesticide diazinon aqueous emulsion of the present invention:
The prescription of diazinon aqueous emulsion is (by weight percentage): diazinon 10-60; Emulsifier 4-8; Stabilizing agent 1-3; Antifreezing agent 4-8; Thickener 0.05-2%; Surplus is a water.
The preparation method of diazinon aqueous emulsion provided by the present invention adopts following processing step:
1, takes by weighing raw material according to aforementioned proportion;
2, Jiang Shui, antifreezing agent, dispersant, thickener mix, and obtain water.
3, with mix under water, the oil phase high speed shearing condition diazinon aqueous emulsion finished product.
Embodiment:
Describe diazinon aqueous emulsion provided by the present invention and preparation method thereof in detail below in conjunction with concrete example, described example is in order to explain the present invention better.
Example 1
Diazinon 25.0%, castor oil polyoxyethylene ether 4.0%, polyoxyethylene (20) sorbitan mono-laurate 1.0%, epoxidized soybean oil 1.0%, n-butanol 4.0%, dimethylbenzene 6.0% are put in the high shearing mixing emulsor, be oil phase after mixing.Add ethylene glycol 2.0%, urea 2.0%, xanthans 0.5%, sodium cellulose glycolate 2.5% in stirred tank, deionized water adds to 100%, is water after stirring.Water is pumped in the head tank, under the condition of high speed shear, water is added in the oil phase gradually, finish the back and continued high speed shear 10-60 minute, get final product 25% diazinon aqueous emulsion.
Example 2
Diazinon 25.0%, castor oil polyoxyethylene (40) ether 1.0%, styryl phenyl APEO 4.0%, calcium dodecyl benzene sulfonate 1.0%, epoxychloropropane 2.0%, isobutanol 4.0%, dimethylbenzene 5.0% are put in the stirred tank, promptly got oil phase after stirring.Naphthalene sulfonic acid condensate sodium salt 1.0%, Magnesiumaluminumsilicate 2.0%, PEG400 3.0% are dropped in the high shearing mixing emulsor, after shearing evenly, promptly get water.Oil phase is pumped into head tank, under the condition of high speed shear, oil phase is added to aqueous phase gradually, finish the back and continue to shear 10-60 minute, get final product 25% diazinon aqueous emulsion.
Example 3
Diazinon 35%, polyoxyethylene (20) sorbitan mono-laurate 1.0%, epoxidized soybean oil 1.0%, epoxychloropropane 2.0%, styrene phenol formaldehyde resin polyoxyethylene polyoxypropylene block co-polyether 5.0%, butyl glycidyl ether 1.0%, isobutanol 3.0%, toluene 2.0% are put in the stirred tank, after mechanical agitation is even, promptly get oil phase, in another stirred tank, drop into polymeric polycarboxylic acid derivative 2.0%, xanthans 0.5%, aluminium-magnesium silicate 1.5%, distilled water is mended to 100%, promptly gets water after mechanical agitation is even.Oil phase is pumped into head tank, under stirring condition, oil phase is added to aqueous phase gradually, finish back continuation stirring and obtained thick emulsion in 10 minutes, thick emulsion is transported in the high pressure homogenizer, after high-pressure homogeneous, promptly get 35% diazinon aqueous emulsion.
Example 4
Diazinon 40%, castor oil polyoxyethylene (60) ether 7.0%, calcium dodecyl benzene sulfonate 1.0%, epoxychloropropane 1.0%, methyl propanediol 1.0%, n-octyl alcohol 1.0%, polyoxyethylene nonylphenol ether 2.0%, toluene 7.0% are put in the high shearing mixing emulsor, after shearing evenly, be oil phase.Add naphthalene sulfonic acid condensate sodium salt 1.0%, xanthans 0.1%, aluminium-magnesium silicate 1.9% in stirred tank, deionized water is added to 100%, is water after stirring.Water is pumped in the head tank, under the condition of high speed shear, water is added in the oil phase gradually, finish the back and continued high speed shear 10-60 minute, get final product 40% diazinon aqueous emulsion.
Example 5
Diazinon 50%, castor oil polyoxyethylene (80) ether 7.0%, polyoxyethylene nonylphenol ether 5.0%, methyl glucoside stearate 2.0%, calcium dodecyl benzene sulfonate 1.0%, methyl propanediol 2.0%, n-butanol 2.0%, toluene 7.0% are put in the high shearing mixing emulsor, through shear even after for oil phase.Add maleic acid-acrylic acid copolymer sodium salt 1.0% in stirred tank, deionized water is added to 100%, is water after stirring.Water is pumped in the head tank, under the condition of high speed shear, water is added in the oil phase gradually, finish the back and continued high speed shear 10-60 minute, get final product 50% diazinon aqueous emulsion.
Claims (9)
1. an aqueous emulsion that contains diazinon is made through homogenize technology, it is characterized in that this aqueous emulsion is made up of organophosphorous pesticide diazinon, emulsifier, stabilizing agent, antifreezing agent, thickener and water.
2. organic phosphor aqueous emulsion according to claim 1 is characterized in that used emulsifier is following kind: castor oil polyoxyethylene ether, polyoxyethylene nonylphenol ether, methyl glucoside stearate, polyoxyethylene (20) sorbitan mono-laurate, calcium dodecyl benzene sulfonate, alkylaryl polyoxyethylene, polyoxy third rare ether and alkylaryl formaldehyde resin APEO.
3. organophosphorus pesticide water emulsion according to claim 1 is characterized in that used stabilizing agent kind is one of following: hydroquinones, expoxy propane base ether, epoxidized soybean oil, tributyl phosphate, epoxychloropropane, alkylphenol polyoxyethylene phosphate, butyl glycidyl ether, phenyl glycidyl ether.
4. organophosphorus pesticide water emulsion according to claim 1 is characterized in that used antifreezing agent is one of following: ethylene glycol, polyethylene glycol, glycerine, propane diols, isopropyl alcohol, urea.
5. thickener according to claim 1 is xanthans, aluminium-magnesium silicate, sodium cellulose glycolate, polyvinyl alcohol.
6. water according to claim 1 is deionized water or distilled water.
7. organophosphorus pesticide water emulsion according to claim 1 is characterized in that the prescription of diazinon aqueous emulsion is (by weight percentage): diazinon 10-60; Emulsifier 4-8; Stabilizing agent 1-3; Antifreezing agent 4-8; Surplus is a water.
8. stabilizing agent according to claim 3 is characterized in that tributyl phosphate, epoxychloropropane, alkylphenol polyoxyethylene phosphate promptly are stabilizing agents, is again emulsifier.
9. antifreezing agent according to claim 4 is characterized in that best antifreezing agent is a urea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810101940A CN101530085A (en) | 2008-03-14 | 2008-03-14 | Aqueous emulsion containing diazinon |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810101940A CN101530085A (en) | 2008-03-14 | 2008-03-14 | Aqueous emulsion containing diazinon |
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| CN101530085A true CN101530085A (en) | 2009-09-16 |
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| CN200810101940A Pending CN101530085A (en) | 2008-03-14 | 2008-03-14 | Aqueous emulsion containing diazinon |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451408A (en) * | 2022-01-17 | 2022-05-10 | 江苏凯元科技有限公司 | Emulsifier suitable for multiple pesticide emulsion in water and preparation method thereof |
| CN115444004A (en) * | 2022-08-16 | 2022-12-09 | 南通江山农药化工股份有限公司 | Insecticidal aqueous emulsion and application thereof |
| CN116019094A (en) * | 2022-12-13 | 2023-04-28 | 新沂市泰松化工有限公司 | Environment-friendly diazinon and preparation method thereof |
-
2008
- 2008-03-14 CN CN200810101940A patent/CN101530085A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451408A (en) * | 2022-01-17 | 2022-05-10 | 江苏凯元科技有限公司 | Emulsifier suitable for multiple pesticide emulsion in water and preparation method thereof |
| CN115444004A (en) * | 2022-08-16 | 2022-12-09 | 南通江山农药化工股份有限公司 | Insecticidal aqueous emulsion and application thereof |
| CN116019094A (en) * | 2022-12-13 | 2023-04-28 | 新沂市泰松化工有限公司 | Environment-friendly diazinon and preparation method thereof |
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Application publication date: 20090916 |