CN102204548A - High-efficient environmentally-friendly type avermectin emulsifiable solution and preparation method thereof - Google Patents
High-efficient environmentally-friendly type avermectin emulsifiable solution and preparation method thereof Download PDFInfo
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- CN102204548A CN102204548A CN2011101046121A CN201110104612A CN102204548A CN 102204548 A CN102204548 A CN 102204548A CN 2011101046121 A CN2011101046121 A CN 2011101046121A CN 201110104612 A CN201110104612 A CN 201110104612A CN 102204548 A CN102204548 A CN 102204548A
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- avermectin
- emulsifiable concentrate
- emulsifiable solution
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- abamectin emulsifiable
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Abstract
The invention relates to high-efficient environmentally-friendly type avermectin emulsifiable solution and a preparation method thereof. The avermectin emulsifiable solution comprises the following compositions in percentage by mass: 1.8-6 percent of avermectin, 6-15 percent of emulsifying agent, 1-5 percent of antioxidant, 10 percent of cosolvent, and 20-70 percent of solvent; the preparation method comprises the following steps of: weighing avermectin emulsifiable solution and the antioxidant, adding a small amount of sec-butyl acetate, mixing for fully dissolving, controlling the temperature of an agitator at 40-60 DEG C, adding prepared emulsifying agent, adding the sec-butyl acetate as a complement, finally adjusting PH to be between 5 and 7 with reagent grade acetic acid, stirring evenly, filtering and packaging. As a pesticide, the emulsifiable solution has strong toxicity to various pests such as snout moth's larva, plutella xylostella, cabbage worms, pear psylla, liriomyza and the like on rice, vegetables, fruit trees and other crops, also has the advantages of wide usage range and long effecting time, as well as no damage to human and livestock; in addition, the avermectin emulsifiable solution has good stability and no pollution to the environment, and the preparation method of the emulsifiable solution is simple.
Description
Technical field
The present invention relates to a kind of crops pesticide, it belongs to a kind of abamectin insecticide of efficient, safe environment protection type.
Technical background
Agricultural chemicals is absolutely necessary as the most important means that guarantee agricultural production, grain security.Particularly the highest ratio that occupies in applicable agricultural chemicals of missible oil product accounts for about 50% of usage amount.Avermectin is an Insecticidal and acaricidal agent agricultural for animals the most popular over past ten years, has and tags, stomach toxicity, penetration is strong, and is because of its insecticidal action efficiently, residual few at plant surface, therefore little to the damage of beneficial insect, advantages such as people, animal are nontoxic have been obtained vast agricultural chemicals user's extensive approval.Since 07 year, the large-scale popularization of Avermectin on the paddy rice has brought unlimited potentiality for the Avermectin product.The outstanding representation of Avermectin aspect the control snout moth's larva of rice, rice leaf roller becomes the new lover who substitutes high-toxic pesticide.At present, nearly all there is the missible oil kind in all pesticidal preparations enterprises, and producing the employed solvent of missible oil traditionally is methyl alcohol, toluene, mixed benzene, dimethylbenzene etc., has greater environmental impacts.
Summary of the invention.
In order to overcome the deficiencies in the prior art, the invention provides a kind of abamectin insecticide of efficient, safe environment protection type, the present invention produces abamectin emulsifiable concentrate with 2-butyl acetate as solvent, reduced the secondary pollution of toxic solvent, reduced the harm of toxic solvent, this missible oil good stability the user to the farmland, overcome the labile shortcoming of Avermectin, the drug effect phase is long, and preparation process is simple, and cost is lower.
The technical solution adopted in the present invention is: this abamectin emulsifiable concentrate comprises following component, each component by mass percentage: Avermectin 1.8～6%; Emulsifier 6～15%; Antioxidant 1～5%; Cosolvent 10%; Solvent 20～70%.
The preparation method of abamectin emulsifiable concentrate comprises the following steps: to get load weighted Avermectin ointment, antioxidant adds a spot of 2-butyl acetate and stirs abundant dissolving, the temperature that guarantees stirred tank is at 40-60 ℃, add deployed emulsifier again, supply with 2-butyl acetate again, regulate PH with SILVER REAGENT acetic acid at last and stir between 5～7, filtration gets product.
Active ingredient Avermectin in the such scheme should adopt nontoxic 2-butyl acetate as solvent production Avermectin ointment.The 2-butyl acetate solvent is to use content greater than 99% technical grade solvent, and PH is 6～8, filters through the filter of 22um that the back uses.
The invention has the beneficial effects as follows: the present invention gets the above-mentioned Avermectin ointment that the nontoxic 2-butyl acetate solvent of people, animal is made of using and mixes with environment-friendly type solvent 2-butyl acetate, through fully stirring, add compositions such as cosolvent, emulsifier, antioxidant, stir and promptly make liquid missible oil.This missible oil good stability has overcome the labile shortcoming of Avermectin, and the drug effect phase is long, and preparation process is simple, and cost is lower.
Embodiment:
The invention will be further described below in conjunction with embodiment:
Embodiment 1, to be driven in the stirred tank after 18 kilograms of environment-friendly type Avermectin ointment and 282 kilograms of 2-butyl acetates mixing, the solvent 2-butyl acetate that adds 10 kilograms of antioxidant BHTs and 400 kilograms again, stirred tank is heated to 40～50 ℃, fully stirring fully dissolves BHT, add 100 kilograms of cosolvent industrial alcohols again, last emulsifier (24 kilograms of 96 kilograms of alkylphenol polyoxyethylene and calcium dodecyl benzene sulfonates) and 70 kilograms of 2-butyl acetates that add 120 kg again complement to 1000 kilograms, regulate between pH value to 5～7 with glacial acetic acid, use through 22um micro porous filtration dilution back.
Finished product carries out the mensuration of stability: stability of emulsion adopts 200 times of liquid dilutions of standard hard water; Low-temperature stability adopt 0 ℃ 7 days; Heat storage stability adopts 54 ± 2 ℃ of storages 14 days.The result sees table 1.
Stability is measured table 1
Finished product efficient and environment-friendly type 1.8% abamectin emulsifiable concentrate is carried out field control effectiveness test, carry out the drug effect contrast with 1.8% abamectin emulsifiable concentrate of Henan Sheng Feng, have a large amount of liriomyza bryoniaes on the investigation cucumber before the dispenser and take place, average every leaf has 2.94 harm tests of liriomyza bryoniae to handle and result such as table 2.
1.8% abamectin emulsifiable concentrate variable concentrations is to the control efficiency table 2 of vegetables liriomyza bryoniae
1.8% abamectin emulsifiable concentrate dosage increases, to the preventive effect raising of liriomyza bryoniae.The pilot survey data are used the new multipole difference of Duncan formula statistical method and are analyzed, the significance of difference of 11 days drug effects behind the medicine, the drug effect between 3000 times of liquid of 1.8% abamectin emulsifiable concentrate and 4000 times of liquid of 1.8% abamectin emulsifiable concentrate and 5000 times of liquid are handled reaches utmost point significant difference; Drug effect between 4000 times of liquid of 1.8% abamectin emulsifiable concentrate and the 5000 times of liquid reaches significant difference; Drug effect indifference between the test medicine of same dose and the contrast medicament.
Embodiment 2, to be driven in the stirred tank after 36 kilograms of environment-friendly type Avermectin ointment and 364 kilograms of 2-butyl acetates mixing, the solvent 2-butyl acetate that adds 30 kilograms of antioxidant BHTs and 300 kilograms again, stirred tank is heated to 40～50 ℃, fully stirring fully dissolves BHT, add 100 kilograms of cosolvent industrial alcohols again, last emulsifier (100 kilograms of the alkylphenol polyoxyethylene that add 150 kilograms again, 20 kilograms of 30 kilograms of calcium dodecyl benzene sulfonates and triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymers) and 20 kilograms of 2-butyl acetates complement to 1000 kilograms, regulate between pH value to 5～7 with glacial acetic acid, use through 22um micro porous filtration dilution back.
Finished product carries out the mensuration of stability: stability of emulsion adopts 200 times of liquid dilutions of standard hard water; Low-temperature stability adopt 0 ℃ 7 days; Heat storage stability adopts 54 ± 2 ℃ of storages 14 days.The result sees table 3.
Stability is measured table 3
3.6% abamectin emulsifiable concentrate for preparing is carried out field control effectiveness test, and existing diamond-back moth generation on the investigation Chinese cabbage has 0.29 diamond-back moth harm before the dispenser in average every strain, and drug effect all shows better after the demonstration control, and diamond-back moth is controlled preferably.Concrete control efficiency is seen following table 4.
3.6% abamectin emulsifiable concentrate and other medicaments contrast experiment table 4
Diamond-back moth effect on the 3.6% abamectin emulsifiable concentrate control Chinese cabbage is better, and the lasting period can reach about 12 days.To Chinese cabbage growth have no adverse effects, safety, effective, can vigorously promote the use aborning.
Embodiment 3, to be driven in the stirred tank after 60 kilograms of environment-friendly type Avermectin ointment and 440 kilograms of 2-butyl acetates mixing, the solvent 2-butyl acetate that adds 50 kilograms of antioxidant BHTs and 150 kilograms again, stirred tank is heated to 40～50 ℃, fully stirring fully dissolves BHT, add 100 kilograms of cosolvent industrial alcohols again, last emulsifier (96 kilograms of the alkylphenol polyoxyethylene that add 150 kilograms again, 17 kilograms of 37 kilograms of calcium dodecyl benzene sulfonates and phenethyl phenol polyethenoxy ethers) and 50 kilograms of 2-butyl acetates complement to 1000 kilograms, regulate between pH value to 5～7 with glacial acetic acid, use through 22um micro porous filtration dilution back.
Finished product carries out the mensuration of stability: stability of emulsion adopts 200 times of liquid dilutions of standard hard water; Low-temperature stability adopt 0 ℃ 7 days; Heat storage stability adopts 54 ± 2 ℃ of storages 14 days.The result sees table 5.
Stability is measured table 5
6% abamectin emulsifiable concentrate for preparing and other medicaments are prevented and treated striped rice borer experiment on the paddy rice, and the investigation paddy rice has to a certain degree larva take place before the dispenser, and the striped rice borer symptom of being injured shows as and stops to get food, all mortalities after 7 days after the dispenser.Formulation rate and the results are shown in Table 6.
Abamectin emulsifiable concentrate control striped rice borer experiment table 6
1.8% abamectin emulsifiable concentrate, 3.6% abamectin emulsifiable concentrate and 6% abamectin emulsifiable concentrate show desirable control efficiency to rice-stem borer under test dose, preventive effect is better than local common insecticide desinsection peace; Paddy growth is had no adverse effects, can promote the use of aborning.
Avermectin performance indications of the present invention see the following form 5:
The performance indications table 5 of abamectin emulsifiable concentrate
The missible oil that the present invention makes has special efficacy to the lepidoptera pest of paddy rice, cotton, fruit tree, vegetables, obvious to the root nematode effect, other insects also there is certain preventive and therapeutic effect, characteristics such as the scope of application is wide, control efficiency good, the term of validity is long, difficult generation resistance.Production technology and equipment are simple, and production process does not have the three wastes, help protecting environment during use, and is harmless to people, animal, free from environmental pollution.Because of plant surface is residual few, therefore little to the damage of beneficial insect.
Claims (6)
1. an abamectin emulsifiable concentrate comprises following component, each component by mass percentage: Avermectin 1.8～6%; Emulsifier 6～15%; Antioxidant 1～5%; Cosolvent 10%; Solvent 20～70%.
2. abamectin emulsifiable concentrate according to claim 1 is characterized in that: emulsifier is a kind of in alkylphenol polyoxyethylene, alkylphenol polyoxyethylene phosphate or salt, aliphatic acid polyethenoxy ether, phenethyl phenol polyethenoxy ether, triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer or the calcium dodecyl benzene sulfonate.
3. abamectin emulsifiable concentrate according to claim 1 is characterized in that: antioxidant is an antioxidant BHT.
4. abamectin emulsifiable concentrate according to claim 1 is characterized in that: cosolvent is a technical grade ethanol.
5. abamectin emulsifiable concentrate according to claim 1 is characterized in that: solvent is a 2-butyl acetate.
6. the preparation method of the abamectin emulsifiable concentrate described in the claim 1, comprise the following steps: to get load weighted Avermectin ointment, antioxidant adds a spot of 2-butyl acetate and stirs abundant dissolving, the temperature that guarantees stirred tank is at 40～60 ℃, add deployed emulsifier again, supply with 2-butyl acetate again, regulate PH with SILVER REAGENT acetic acid at last and stir between 5～7, filtration gets product.
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| CN2011101046121A CN102204548A (en) | 2011-04-26 | 2011-04-26 | High-efficient environmentally-friendly type avermectin emulsifiable solution and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102613172A (en) * | 2012-02-29 | 2012-08-01 | 大庆志飞生物化工有限公司 | Novel methylamino abamectin benzoate ointment and production method thereof |
| CN104738080A (en) * | 2015-03-26 | 2015-07-01 | 湖北犇星农化有限责任公司 | Chlorpyrifos missible oil and preparation method thereof |
| CN104920351A (en) * | 2015-06-23 | 2015-09-23 | 中化化工科学技术研究总院 | Emulsifier special for pesticide emulsifiable concentrates |
| CN105766908A (en) * | 2016-03-31 | 2016-07-20 | 广东中迅农科股份有限公司 | Missible oil preparation taking secbutyl acetate as solvent and preparation method thereof |
| CN107211996A (en) * | 2017-05-26 | 2017-09-29 | 河北威远生化农药有限公司 | A kind of avermectin B2a missible oil and preparation method thereof |
| CN108651488A (en) * | 2018-05-28 | 2018-10-16 | 徐建自 | A kind of abamectin emulsifiable concentrate preparation |
| CN108935494A (en) * | 2018-06-02 | 2018-12-07 | 允发化工（上海）有限公司 | A kind of abamectin emulsifiable concentrate and its preparation and application |
| CN112931494A (en) * | 2019-12-11 | 2021-06-11 | 佳木斯兴宇生物技术开发有限公司 | 5% emamectin benzoate emulsifiable solution without flatulence and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102613172A (en) * | 2012-02-29 | 2012-08-01 | 大庆志飞生物化工有限公司 | Novel methylamino abamectin benzoate ointment and production method thereof |
| CN104738080A (en) * | 2015-03-26 | 2015-07-01 | 湖北犇星农化有限责任公司 | Chlorpyrifos missible oil and preparation method thereof |
| CN104920351A (en) * | 2015-06-23 | 2015-09-23 | 中化化工科学技术研究总院 | Emulsifier special for pesticide emulsifiable concentrates |
| CN105766908A (en) * | 2016-03-31 | 2016-07-20 | 广东中迅农科股份有限公司 | Missible oil preparation taking secbutyl acetate as solvent and preparation method thereof |
| CN107211996A (en) * | 2017-05-26 | 2017-09-29 | 河北威远生化农药有限公司 | A kind of avermectin B2a missible oil and preparation method thereof |
| CN108651488A (en) * | 2018-05-28 | 2018-10-16 | 徐建自 | A kind of abamectin emulsifiable concentrate preparation |
| CN108935494A (en) * | 2018-06-02 | 2018-12-07 | 允发化工（上海）有限公司 | A kind of abamectin emulsifiable concentrate and its preparation and application |
| CN112931494A (en) * | 2019-12-11 | 2021-06-11 | 佳木斯兴宇生物技术开发有限公司 | 5% emamectin benzoate emulsifiable solution without flatulence and preparation method thereof |
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Application publication date: 20111005 |