CN1448052A - Methyl-abamectin benzoate microemulsion and prep. thereof - Google Patents
Methyl-abamectin benzoate microemulsion and prep. thereof Download PDFInfo
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- CN1448052A CN1448052A CN 02109436 CN02109436A CN1448052A CN 1448052 A CN1448052 A CN 1448052A CN 02109436 CN02109436 CN 02109436 CN 02109436 A CN02109436 A CN 02109436A CN 1448052 A CN1448052 A CN 1448052A
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- emamection benaoate
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- microemulsion
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- emamection
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Abstract
The present invention belongs to pesticide, and relates to one kind of semi-synthetic biological pesticidal miticide and its preparation. The micro emulsion of methylamino abamectin benzoate contains methylamino abamectin benzoate 0.1-10 wt%, solvent 1-20 wt%, cosolvent 1-20 wt%, emulsifier 5-60 wt% and water 20-90 wt%. The said components are mixed via stirring in a reactor to form homogeneous transparent liquid product. The present invention has the advantages of less environmental pollution and raised herbicidal effect.
Description
Technical field
The invention belongs to agricultural chemical insecticide novel form field, what relate to is a kind of a kind of semi-synthetic Biocidal miticide that begins from the biofermentation pesticide avermectin, i.e. microemulsion of emamection benaoate and preparation method thereof.
Background technology
Emamection benaoate is high to the larva of lepidopterous insects and other parts insect and acarid activity, and the stomach poison function effect is remarkable, has good action of contace poison concurrently.Have super-high-efficient, the lasting period is long, to advantages such as all crops and beneficial insect high safeties.Good drug effect is arranged under lower using dosage.Improve 10～100 times than the insecticidal effect of using former parent Avermectin.The existing several families of China plant produced emamection benaoate, its formulation mostly is missible oil.Aromatic organic solvent is mainly adopted in the production of cream preparation, and as benzene,toluene,xylene etc., environmental pollution is heavier, and makes soil compaction.Environmental protection department proposed objection to these type of formulations of pesticide.The foreign developed country of existing part forbidding missible oil formulation agricultural chemicals.Therefore use no or little the direction that aromatic organic solvent has become the development formulations of pesticide.In addition, missible oil class agricultural chemicals is equipped with suitable quantity of water and is prepared into spray liquor when using after, promptly become emulsion, the emulsified dispersion in organic solvent of the effective ingredient of agricultural chemicals becomes very thin oil droplet, and generally at 0.1～1.0 micron, outward appearance is creamy white its diameter.But for this efficient pesticides of emamection benaoate, need give full play to its power, and improve the effective rate of utilization of emamection benaoate by the fineness that improves oil droplet.Adopt the preparation processing method of microemulsion, can obtain such effect.Though the early existing people's research of this profit dispersion of microemulsion, the microemulsion effective component content is lower, and dosage of surfactant is bigger.Therefore in the conventional pesticide kind, also seldom utilize this new architecture of microemulsion so far.As for emamection benaoate, have only missible oil and few formulations such as wetting powder at present.
Summary of the invention
The purpose of this invention is to provide and a kind ofly substitute aromatic organic solvent, improve the fineness of emamection benaoate in emulsion, improve its killing ability and improve the emamection benaoate microemulsion and preparation method thereof of the effective rate of utilization of emamection benaoate with water.
Technical solution of the present invention is that a kind of emamection benaoate microemulsion by weight percentage, contains emamection benaoate 0.1～10%, solvent 1～20%, cosolvent 1～20%, emulsifier 5～60%, water 20～90%;
Solvent is an arene;
Aromatic hydrocarbon solvent is benzene,toluene,xylene, ethylbenzene;
Solvent is the ester class;
Esters solvent is methyl formate, Ethyl formate, propyl formate, butyl formate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, methyl propionate, ethyl propionate, butyl propionate, methyl butyrate, ethyl butyrate, butyl butyrate;
Cosolvent is an alcohols;
Co-solvent is methyl alcohol, ethanol, propyl alcohol, isopropyl alcohol, butanols, isobutanol, ethylene glycol, propane diols;
Emulsifier is a non-ionic surface active agent;
Emulsifier is an anion surfactant;
A kind of preparation method of emamection benaoate microemulsion, at first in proportion solvent, cosolvent and emamection benaoate are stirred miscible even under 40-80 rev/min rotating speed, drop into emulsifier then, stir again, add entry at last, continue to stir 1-2 hour, become the homogeneous transparent solution product.
Advantage of the present invention and good effect are:
1. reduced environmental pollution.Aromatic organic solvent content is generally at 60-90% in the conventional emamection benaoate missible oil formulation, and only contains 1-20% in the microemulsion, reduced the usage amount of aromatic organic solvent, reduced environmental pollution.
2. improved drug effect.The soup oil droplet fineness that conventional cream preparation is mixed with when spraying emulsion is 0.1～1.0 micron, and the oil droplet fineness of the sprinkling missible oil that microemulsion is joined is 0.001～0.01 micron.The emulsion of this moment has been transparent or semitransparent true solution.Improve the pesticide active ingredient emamection benaoate to the penetrating ability of insect and plant and sprawl uniformity, improved the effective rate of utilization of control efficiency and medicament.Through testing: 1% emamection benaoate missible oil is converted 2000 times in water, to larval mortalities such as cigarette aphid noctuid, cotton bollworm, beet armyworm, cabbage looper, mythimna separatas is 98-100%, and 0.5% emamection benaoate microemulsion is converted 2000 times in water, same above-mentioned larva, lethality are 98-100%.Show at host content and reduce under the situation of half the drug effect basically identical.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Example 1
The former medicine 2kg of emamection benaoate; Toluene 5kg; Isopropyl alcohol 2kg; Emulsifier 10kg.Elder generation joins toluene, isopropyl alcohol in the reactor that has agitator and mixes, and adds the former medicine of emamection benaoate again and mixes stirring 1.5 hours.Add emulsifier again and continue to stir, add entry at last and complement to 100kg, stirred 1.5 hours, make it to become the solution product of homogeneous phase transparent.
Example 2
The former medicine 1kg of emamection benaoate; Propyl acetate 2kg; Isobutanol 5kg; Emulsifier 15kg.Earlier propyl acetate, isobutanol are joined in the reactor that has agitator and mix, add the former medicine of emamection benaoate and mix stirring 1.5 hours, adding emulsifier again continues to stir, add entry at last and complement to 100kg, stirred 1.5 hours, and made it to become the solution product of homogeneous phase transparent.
Example 3
The former medicine 0.2kg of emamection benaoate; Propyl acetate 1kg; Ethylene glycol 3kg; Emulsifier 10kg.Elder generation joins propyl acetate, ethylene glycol in the reactor that has agitator and mixes, and adds the former medicine of emamection benaoate again and mixes stirring 1.5 hours.Add emulsifier again and continue to stir, add entry at last and complement to 100kg, stirred 1.5 hours, make it to become the solution product of homogeneous phase transparent.
Claims (10)
1. an emamection benaoate microemulsion is characterized in that, by weight percentage, contains emamection benaoate 0.1～10%, solvent 1～20%, cosolvent 1～20%, emulsifier 5～60%, water 20～90%.
2. a kind of emamection benaoate microemulsion according to claim 1 is characterized in that solvent is an arene.
3. according to claim 1,2 described a kind of emamection benaoate microemulsions, it is characterized in that aromatic hydrocarbon solvent is a benzene.
4. a kind of emamection benaoate microemulsion according to claim 1 is characterized in that solvent is the ester class.
5. according to claim 1,4 described a kind of emamection benaoate microemulsions, it is characterized in that esters solvent is a methyl formate.
6. a kind of emamection benaoate microemulsion according to claim 1 is characterized in that cosolvent is an alcohols.
7. according to claim 1,6 described a kind of emamection benaoate microemulsions, it is characterized in that co-solvent is a methyl alcohol.
8. a kind of emamection benaoate microemulsion according to claim 1 is characterized in that emulsifier is a non-ionic surface active agent.
9. a kind of emamection benaoate microemulsion according to claim 1 is characterized in that emulsifier is an anion surfactant.
10. the method for preparing the described a kind of emamection benaoate microemulsion of claim 1, it is characterized in that, at first solvent, cosolvent and emamection benaoate are stirred miscible even under 40-80 rev/min rotating speed, drop into emulsifier then, stir again, add entry at last, continue to stir 1-2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109436 CN1448052A (en) | 2002-04-04 | 2002-04-04 | Methyl-abamectin benzoate microemulsion and prep. thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109436 CN1448052A (en) | 2002-04-04 | 2002-04-04 | Methyl-abamectin benzoate microemulsion and prep. thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN1448052A true CN1448052A (en) | 2003-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02109436 Pending CN1448052A (en) | 2002-04-04 | 2002-04-04 | Methyl-abamectin benzoate microemulsion and prep. thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342787C (en) * | 2004-07-28 | 2007-10-17 | 中国科学院生态环境研究中心 | Combination of insect disinfectations containing benzoate of Avermectin in methylamine group and azadirachtin |
| CN101002560B (en) * | 2006-01-17 | 2010-08-18 | 上海农乐生物制品股份有限公司 | Aqueous emulsion containing methyl amino abamectin benzoate, and its preparing method |
| CN101129478B (en) * | 2007-08-17 | 2010-12-22 | 王安林 | Wormkillers of methylamino avermectin benzoate for animals, method of preparing the same and application of the same |
| CN101933509A (en) * | 2010-09-10 | 2011-01-05 | 山东新势立生物科技有限公司 | Methylamino abamectin benzoate micro-emulsion serving as agricultural insecticide and preparation method |
| CN101309587B (en) * | 2005-11-18 | 2013-08-28 | 凯米诺瓦有限公司 | Oil-in-water formulaion of avermectins |
-
2002
- 2002-04-04 CN CN 02109436 patent/CN1448052A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342787C (en) * | 2004-07-28 | 2007-10-17 | 中国科学院生态环境研究中心 | Combination of insect disinfectations containing benzoate of Avermectin in methylamine group and azadirachtin |
| CN101309587B (en) * | 2005-11-18 | 2013-08-28 | 凯米诺瓦有限公司 | Oil-in-water formulaion of avermectins |
| CN101002560B (en) * | 2006-01-17 | 2010-08-18 | 上海农乐生物制品股份有限公司 | Aqueous emulsion containing methyl amino abamectin benzoate, and its preparing method |
| CN101129478B (en) * | 2007-08-17 | 2010-12-22 | 王安林 | Wormkillers of methylamino avermectin benzoate for animals, method of preparing the same and application of the same |
| CN101933509A (en) * | 2010-09-10 | 2011-01-05 | 山东新势立生物科技有限公司 | Methylamino abamectin benzoate micro-emulsion serving as agricultural insecticide and preparation method |
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