CN1443455A - Chlorpyrifos smoking agent and its preparation method - Google Patents
Chlorpyrifos smoking agent and its preparation method Download PDFInfo
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- CN1443455A CN1443455A CN 03109574 CN03109574A CN1443455A CN 1443455 A CN1443455 A CN 1443455A CN 03109574 CN03109574 CN 03109574 CN 03109574 A CN03109574 A CN 03109574A CN 1443455 A CN1443455 A CN 1443455A
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Abstract
The present invention relates to a broad-spectrum pesticide, in particular, it is a chlorpyrifos smoking agent and its preparation method. Its composition includes (wt%) 5-40% of chlorpyrifos, 0.1-15% of compound surfactant, 25-80% of solvent and 1-20% of cosolvent. It is made up by adopting solvent with high boiling point. Said invented chlorpyrifos smoking agent can be used for controlling pests of crops of forest area.
Description
Technical field
The present invention relates to a kind of broad spectrum pesticide, especially chlopyrifos aerosol and preparation method thereof.
The chlopyrifos product that background technology is produced at present both at home and abroad is cream preparation, mainly adopts the lower toluene of boiling point, the preparation of dimethylbenzene equal solvent.To convert in the use and spray after a large amount of fresh water form emulsion, very difficult when the crop of higher and dense planting is sprayed, such as fruit tree.Water smoke runs off on crop seriously, resistance of rainwater washing against not, and effective drug duration is short, and the murder by poisoning to environment and operating personnel is big simultaneously.The dilution water consumption is big, and labour intensity and time are increased, and work efficiency reduces.Aerosol is studied early abroad, but slower development, and in health and epidemic prevention, several aerosols occurred domestic the 1970s and 1980s in the forest and the rubber extermination of disease and insect pest mostly in its application, yet do not see both at home and abroad that so far the chlopyrifos aerosol comes out.The chlopyrifos aerosol that the present invention is alleged is strictly said be called thermal fog (hot fogging concentrate).
Summary of the invention
The purpose of this invention is to provide a kind of chlopyrifos aerosol and preparation method thereof.Adopt high boiling solvent formulated.In use eject superfine droplet (2-5 μ m accounts for more than 80%) with fog machine, drift in air just can be deposited on crop blade face (just, the back side) and the stem disease that is used to prevent and treat crop firmly in case run into crop.
The chlopyrifos aerosol contains chlopyrifos, complexed surfactant, solvent and cosolvent, and its percentage by weight is respectively:
Chlopyrifos 5-40%
Complexed surfactant 0.1-15%
Solvent 25-80%
Cosolvent 1-20%
All each constituent contents is 100% in the composition
As 0 of active component, 0-diethyl radix-(3,5,6-trichloropyridine base) thiophosphate also claims chlopyrifos.
Complexed surfactant is by two kinds or several composition the in calcium dodecyl benzene sulfonate (as newborn No. 500 of farming), polyoxyethylene nonylphenol ether (as OP-4, OP-7, OP-10), single oleic acid sorbitan ester (as span-80) or the secondary alkanol oxygen vinethene (as JFC).
Solvent is by one or more compositions in aromatic hydrocarbons No. two, No. three (many alkyl-substituted aromatic hydrocarbons, boiling point is more than 2000 ℃), o-dichlorohenzenes, diethylene glycol (DEG), triethylene glycol, propane diols, atoleine, white oil, castor oil, the turpentine oil.
Cosolvent is made up of in methyl-sulfoxide, N, dinethylformamide, ethylene glycol, the glycerine one or more.
The present invention can also add known synergist, stabilizing agent or carry out compositely with other effective active composition, can improve the drug effect of chlopyrifos aerosol and the practicality on the agricultural greatly.
The preparation method of chlopyrifos aerosol comprises the steps:
At first with active component 0,0-diethyl radix-(3,5,6-trichloropyridine base) thiophosphate adds in the modulation kettle with solvent, cosolvent, dissolve below 50 ℃ in agitating heating, after treating to dissolve fully, again complexed surfactant is added, continue to stir, be heated to and become transparent homogeneous phase solution.Be cooled to room temperature, cross a small amount of residue of filtering, filtrate is carried out analyzing and testing, can pack storing after qualified.
Advantage of the present invention is:
1) ability to resist splash erosion is strong.Conventional pesticide preparation missible oil, wetting powder and aqueous suspension agent etc., convert a large amount of water sprays during use, its droplet can only partly deposit on crop, it is a lot of to be lost, even being deposited on droplet on the crop meets rain and also can be washed away at once, fall torrential rain immediately and smoke particle is deposited on the crop and also do not wash away, and when spotting, also can spray.
2) effect height, not only saving of labor but also save time.Effect power is 10 times of conventional mist, so reduce the dispenser cost greatly.
3) save former medicine, the drug effect height, the lasting period is long.About every mu of spray aerosol 100 grams (content 10-15%), conventional formulation needs the 20-30 gram approximately by active ingredient.
4) little to environment and operating personnel's pollution and toxic hazard.Conventional atomized water spray is for tall and big dense planting crop, operating personnel are endangered seriously, and soup runs off in a large number in soil, pollute, and spray aerosol, the people carries on the back fog machine and walks the front against the wind, back ejection smog, to not influence of people, the smoke particle overwhelming majority is deposited on the crop, and is very little to environmental influence.
5) save a large amount of fresh water.Conventional atomized water spray, as in fruit tree, need converting 200-400kg fresh water approximately, and spray aerosol water not, every mu only needs spraying preparation 100-200 gram to get final product.This advantage is particularly suitable for mountain area, hilly country and arid area.
Embodiment
Embodiment 1 (preparation method of 5% chlopyrifos aerosol)
Composition of raw materials: by weight percentage, get chlopyrifos 5%; Complexed surfactant, farming breast No. 500 2%; Solvent, aromatic hydrocarbons No. two 45%, No. three 35%; Cosolvent methyl-sulfoxide 13%.
Preparation method: at first with active component 0,0-diethyl radix-(3,5,6-trichloropyridine base) thiophosphate adds in the modulation kettle with solvent, cosolvent, dissolve below 50 ℃ in agitating heating, after treating to dissolve fully, again complexed surfactant is added, continue to stir, be heated to and become transparent homogeneous phase solution.Be cooled to room temperature, cross a small amount of residue of filtering, filtrate is carried out analyzing and testing, can pack storing after qualified.
Embodiment 2 (preparation method of 10% chlopyrifos aerosol)
Composition of raw materials: by weight percentage, get chlopyrifos 10%; Complexed surfactant, span-80 4%; Solvent, diethylene glycol (DEG) 41%, castor oil 40%; Cosolvent, dimethyl formamide 5%.
Preparation method: identical with embodiment 1.
Embodiment 3 (preparation method of 15% chlopyrifos aerosol)
Composition of raw materials: by weight percentage, get chlopyrifos 15%; Complexed surfactant, OP-4 5%; Solvent, o-dichlorohenzene 40%, turpentine oil No. three 35%; Cosolvent, propane diols 5%.
Preparation method: identical with embodiment 1.
Embodiment 4 (preparation method of 25% chlopyrifos aerosol)
Composition of raw materials: by weight percentage, get chlopyrifos 25%; Complexed surfactant, OP-4 10%; Solvent, o-dichlorohenzene 30%, turpentine oil No. three 22%; Cosolvent, glycerine 10%.
Embodiment 5 (preparation method of 40% chlopyrifos aerosol)
Composition of raw materials: by weight percentage, get chlopyrifos 40%; Complexed surfactant, JFC 15%; Solvent, aromatic hydrocarbons No. three 15%, atoleine 13%; Cosolvent, N, dinethylformamide 20%.
Preparation method: identical with embodiment 1.
Embodiment 6 (preparation method of 30% chlopyrifos aerosol)
Composition of raw materials: by weight percentage, get chlopyrifos 30%; Complexed surfactant, JFC 15%; Solvent, triethylene glycol 15%, atoleine 15%; Cosolvent, ethylene glycol 25%.
Preparation method: identical with embodiment 1.
Embodiment 7 (preparation method of 35% chlopyrifos aerosol)
Composition of raw materials: by weight percentage, get chlopyrifos 35%; Complexed surfactant, OP-10 15%; Solvent, aromatic hydrocarbons No. three 15%, white oil 15%; Cosolvent, ethylene glycol 20%.
Preparation method: identical with embodiment 1.
Get the chlopyrifos aerosol of the foregoing description preparation, use fog machine, test prevents and treats damage by forest-insects in the forest zone, 1 hectare 2 kilograms sprayed in 10 minutes, eject superfine droplet at every turn, 2-5 μ m accounts for more than 80%, and drift just is deposited on the blade face and stem of trees firmly in air, prevents and treats damage by forest-insects (aphid, Ji ant worm) more than 80%.
Claims (8)
1. chlopyrifos aerosol is characterized in that it contains chlopyrifos, complexed surfactant solvent and cosolvent, and their composition and percentage by weight are:
Chlopyrifos 5-40%
Complexed surfactant 0.1-15%
Solvent 25-80%
Cosolvent 1-20%
All each constituent contents is 100% in the composition
2, chlopyrifos aerosol according to claim 1 is characterized in that: said chlopyrifos as active component also claims 0,0-diethyl radix-(3,5,6-trichloropyridine base) thiophosphate.
3, chlopyrifos aerosol according to claim 1 is characterized in that: said complexed surfactant is two kinds or several composition in polyoxyethylene nonylphenol ether, calcium dodecyl benzene sulfonate, single oleic acid sorbitan ester, the secondary alkanol APEO.
4, chlopyrifos aerosol according to claim 3 is characterized in that: said complexed surfactant is No. 500, farming breast, OP-4, OP-7, OP-10, span-80 or JFC preferably.
5, chlopyrifos aerosol according to claim 1, it is characterized in that: said solvent is by aromatic hydrocarbons No. two, No. three (many alkyl-substituted aromatic hydrocarbons, boiling point is more than 2000 ℃), o-dichlorohenzene, chlorobenzene, diethylene glycol (DEG), triethylene glycol, propane diols, atoleine, white oil, castor oil, one or more compositions in the turpentine oil.
6, chlopyrifos aerosol according to claim 1 is characterized in that: said cosolvent is made up of in methyl-sulfoxide, N, dinethylformamide, ethylene glycol, the glycerine one or more.
7, the preparation method of chlopyrifos aerosol according to claim 1 is characterized in that: comprise the steps:
At first with active component chlopyrifos-0,0-diethyl radix-(3,5,6-trichloropyridine base) thiophosphate adds in the modulation kettle with solvent, cosolvent, dissolve below 50 ℃ in agitating heating, after treating to dissolve fully, again complexed surfactant is added, continue to stir, be heated to and become transparent homogeneous phase solution.Be cooled to room temperature, cross a small amount of residue of filtering, filtrate is carried out analyzing and testing, can pack storing after qualified.
8, the using method of chlopyrifos aerosol according to claim 1, it is characterized in that: the chlopyrifos aerosol is ejected superfine droplet (2-5 μ m accounts for more than 80%) with fog machine, at forest zone test control forest and rubber damage by disease and insect, drift just is deposited on the blade face and stem of trees firmly in air, prevents and treats damage by forest-insects more than 80%.Drift in air just can be deposited on crop blade face (just, the back side) and the stem disease that is used to prevent and treat crop firmly in case run into crop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03109574 CN1233240C (en) | 2003-04-15 | 2003-04-15 | Chlorpyrifos smoking agent and its preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03109574 CN1233240C (en) | 2003-04-15 | 2003-04-15 | Chlorpyrifos smoking agent and its preparation method |
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| Publication Number | Publication Date |
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| CN1443455A true CN1443455A (en) | 2003-09-24 |
| CN1233240C CN1233240C (en) | 2005-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03109574 Expired - Fee Related CN1233240C (en) | 2003-04-15 | 2003-04-15 | Chlorpyrifos smoking agent and its preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640762A (en) * | 2012-04-12 | 2012-08-22 | 广西田园生化股份有限公司 | Hot fogging concentrate containing acetamiprid |
| CN101773113B (en) * | 2010-02-09 | 2013-02-13 | 安徽农业大学 | Hot fogging concentrate containing propiconazole and chlorpyrifos and preparation method thereof |
-
2003
- 2003-04-15 CN CN 03109574 patent/CN1233240C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773113B (en) * | 2010-02-09 | 2013-02-13 | 安徽农业大学 | Hot fogging concentrate containing propiconazole and chlorpyrifos and preparation method thereof |
| CN102640762A (en) * | 2012-04-12 | 2012-08-22 | 广西田园生化股份有限公司 | Hot fogging concentrate containing acetamiprid |
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| Publication number | Publication date |
|---|---|
| CN1233240C (en) | 2005-12-28 |
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