CN101530074B - Preparation method of pyridaben micro-emulsion - Google Patents
Preparation method of pyridaben micro-emulsion Download PDFInfo
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- CN101530074B CN101530074B CN2008101019226A CN200810101922A CN101530074B CN 101530074 B CN101530074 B CN 101530074B CN 2008101019226 A CN2008101019226 A CN 2008101019226A CN 200810101922 A CN200810101922 A CN 200810101922A CN 101530074 B CN101530074 B CN 101530074B
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Abstract
The invention relates to an insecticide composition, in particular to a preparation method of a pyridaben micro-emulsion. The invention is characterized in that: by screening and doing research on a plurality of solvents, emulsifiers and preparation processes and adopting water in place of a plurality of organic solvents, the method decreases the environmental pollution caused by agricultural chemicals; pyridaben micro-emulsion prepared by adopting suitable surfactants and additives through ultra-fine refinement process is good in physicochemical stability, strong in emulsion dispersion and is a non-polluted miticide with high efficiency, broad spectrum and low toxicity. The miticide is characterized in that: the pyridaben micro-emulsion comprises 1 to 40 percent of pyridaben, 5 to 30 percent of solvent, 5 to 10 percent of stabilizing agent, 5 to 10 percent of synergistic agent, 5 to 30 percent of emulsifier and 20 to 70 percent of water. The pyridaben micro-emulsion products are obtained by dissolving raw pyridaben powders in the solvent, adding the emulsifier, then adding the synergistic agent and the stabilizing agent, fully and uniformly stirring, then putting the mixed agents into a viscolizer filled with dispersed medium water and then strongly mixing and homogenizing the mixture.
Description
Technical field
The present invention relates to a kind of agricultural chemicals miticide, relate to a kind of preparation method of pyridaben micro-emulsion specifically.Characteristics of the present invention are through screening and research to multiple solvent, emulsifier, preparation technology, replace a large amount of organic solvents with water, thereby have reduced the pollution of agricultural chemicals to environment.
Technical background
Pyridaben, the spirit of Chinese speed mite; Pyridaben; Altair; The 2-tert-butyl group-5-(4-tert-butyl group benzylthio)-4-chlorine pyridazine-3-(2H) ketone; Efficiently, wide spectrum miticide; Absorption in not having; Tetranychid, Panonychus citri, unguiculus mite are closed planting property of food such as goitre mite evil mite and all have obvious control efficiency, and to ovum, if mite, become mite all effective, also effective to the mobile phase that becomes mite.Be applicable to citrus, apple, pears, hawthorn, cotton, tobacco, vegetables (except the eggplant) and ornamental plants.Pyridaben is at 50 ℃ of stable 90d, and is stable in organic solvent, to photo-labile.
Agricultural chemicals is traditional to account for 80% like missible oil, pulvis and wetting powder etc. in China's preparation total amount, along with the development of processing formulation, the shortcoming of conventional dosage forms is apparent more outstanding.Contain organic solvents such as a large amount of xylol, toluene in the missible oil, not only environment has been caused than severe contamination, and the petrochemical industry resource has been caused waste.Wetting powder often occurs dust from flying because its granularity is very thin in production and use, not only endanger people's health, also can cause environmental pollution, and low amounts of dust is flown upward and is easy to make crops to produce poisoning.Pulvis subject matter is the dust drift, and volume is big, is difficult for metering, existing arid area and some particular places of only being used for." water base replacement oil base ", greatly develop water base property pesticides new formulation, reduce consumption of organic solvent, walk the road for development of the Environmental compatibility formulations of pesticide, become world's formulations of pesticide development current.Microemulsion be liquid or be dispersed in the aqueous solution that contains the exhibiting high surface activating agent with the former medicine of liquid pesticidal that solvent is mixed with after, formed transparent or translucent solution.Because microemulsion has added the exhibiting high surface activating agent, general field efficacy is higher by 5～10% than missible oil.
The main formulation of the pyridaben miticide product of using on the agricultural chemicals market at present has missible oil and wetting powder, and efficient, low toxicity, environment amenable pyridaben micro-emulsion are effectively used as yet.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of pyridaben micro-emulsion.
Another object of the present invention is the shortcoming that is to overcome prior art, provide a kind of with pyridaben be that the preparation of former medicine is efficient, low toxicity, environment amenable nuisanceless micro emulsion miticide.The object of the invention is realized through following technical scheme:
1, a kind of pyridaben micro-emulsion, it is characterised in that, by weight percentage, contains pyridaben 1-40%, solvent 5-30%, stabilizing agent 5-10%, synergist 5-10%, emulsifier 5-30%, water 20-70%.
2, described solvent is selected from N-Methyl pyrrolidone, ethanol, isopropyl alcohol, n-butanol, n-amyl alcohol, acetone, cyclohexanone or has any one or the two or more combinations in the material of similar features.
3, described emulsifier is meant 33#, 34#, 500#, 600#, 700#, NP-10, PNP-10, EL-40,1601#, 2000#, PF-690, BY-130, soil temperature-120 or has in the material of similar features one or more combination.
4, described stabilizing agent is one or more among ethylene glycol, polyethylene glycol, urea, the glycerine.
5, described synergist is one or more among piperonyl butoxide, Octachlorodipropyl Ether, the azone.Described pyridaben micro-emulsion manufacturing process is:
The former powder of pyridaben is dissolved in the solvent, drops into emulsifier, drop into synergist and stabilizing agent again, stir, put into then and give intense mixing and homogenize in the homogenizer that dispersion medium water is housed, promptly get the pyridaben micro-emulsion product.
Compared with prior art, pyridaben micro-emulsion of the present invention has following advantage:
1, reduces environmental pollution.Aromatic organic solvent content is generally at 60-90% in the conventional pyridaben 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 the 0.1-1.0 micron, and the oil droplet fineness of the sprinkling missible oil that microemulsion is joined is the 0.001-0.01 micron.
3, microemulsion outward appearance of the present invention is transparent or approaching transparent, no oil slick and deposition, and preparation is nonflammable, storing safety.
4, fungicide preparation preparing process of the present invention is simpler, easy to use, is suitable for large scale application.
Specific embodiments
For a better understanding of the present invention, the present invention is described further, but the scope that the present invention requires to protect is not limited to the scope that embodiment representes below in conjunction with embodiment.
Embodiment 1:
10% pyridaben micro-emulsion.Pyridaben 10g, cyclohexanone 7g, 34#5g, ethylene glycol 6g, piperonyl butoxide 5g, water 67g.The former powder of pyridaben is dissolved in the solvent, drops into emulsifier, drop into synergist and stabilizing agent again, stir, put into then and give intense mixing and homogenize in the homogenizer that dispersion medium water is housed, promptly get the pyridaben micro-emulsion product.
Embodiment 2:
20% pyridaben micro-emulsion.Pyridaben 20g, cyclohexanone 15g, 34#10g, ethylene glycol 6g, piperonyl butoxide 5g, water 44g.The former powder of pyridaben is dissolved in the solvent, drops into emulsifier, drop into synergist and stabilizing agent again, stir, put into then and give intense mixing and homogenize in the homogenizer that dispersion medium water is housed, promptly get the pyridaben micro-emulsion product.
Embodiment 3
40% pyridaben micro-emulsion.Pyridaben 40g, cyclohexanone 20g, 34#15g, ethylene glycol 5g, piperonyl butoxide 5g, water 15g.The former powder of pyridaben is dissolved in the solvent, drops into emulsifier, drop into synergist and stabilizing agent again, stir, put into then and give intense mixing and homogenize in the homogenizer that dispersion medium water is housed, promptly get the pyridaben micro-emulsion product.
Claims (4)
1. a pyridaben micro-emulsion is characterized in that by weight percentage, contains pyridaben 1-40%, solvent 5-30%, stabilizing agent 5-10%, synergist 5-10%, emulsifier 5-30%, water 20-70%;
Described solvent is meant any one or the two or more combinations in dimethyl formamide, ethanol, isopropyl alcohol, n-butanol, n-amyl alcohol, acetone, the cyclohexanone;
Described emulsifier is meant in 33#, 34#, 500#, 600#, 700#, NP-10, PNP-10, EL-40,1601#, 2000#, PF-690, BY-130, the soil temperature-120 one or more combination.
2. pyridaben micro-emulsion according to claim 1 is characterized in that described stabilizing agent is one or more among ethylene glycol, polyethylene glycol, urea, the glycerine.
3. pyridaben micro-emulsion according to claim 1 is characterized in that described synergist is one or more among piperonyl butoxide, Octachlorodipropyl Ether, the azone.
4. the preparation method of pyridaben micro-emulsion according to claim 1; It is characterized in that the former powder of pyridaben is dissolved in the solvent; Drop into emulsifier, drop into synergist and stabilizing agent again, stir; Put into then and give intense mixing and homogenize in the homogenizer that dispersion medium water is housed, promptly get the pyridaben micro-emulsion product.
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| CN2008101019226A CN101530074B (en) | 2008-03-14 | 2008-03-14 | Preparation method of pyridaben micro-emulsion |
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| CN2008101019226A CN101530074B (en) | 2008-03-14 | 2008-03-14 | Preparation method of pyridaben micro-emulsion |
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| CN101530074A CN101530074A (en) | 2009-09-16 |
| CN101530074B true CN101530074B (en) | 2012-07-25 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771515A (en) * | 2012-07-02 | 2012-11-14 | 南通帝星化工有限公司 | Composite microemulsion of acifluorfen, pyridaben and prochloraz-manganese chloride complex |
| CN103783045A (en) * | 2012-11-01 | 2014-05-14 | 中国中化股份有限公司 | Acaricide composite |
| CN108057020A (en) * | 2017-11-15 | 2018-05-22 | 佛山市正典生物技术有限公司 | A kind of pyridaben antiparasitic preparation for animals and preparation method thereof |
| CN112218531B (en) * | 2018-05-28 | 2021-10-01 | 日产化学株式会社 | Emulsifiable composition of agricultural chemicals |
| CN110800741A (en) * | 2019-12-06 | 2020-02-18 | 李玉洁 | Efficient pesticide for preventing and treating field red spiders and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1656893A (en) * | 2004-02-18 | 2005-08-24 | 深圳市诺普信农化有限公司 | Method for preparing pesticide microemulsion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1656893A (en) * | 2004-02-18 | 2005-08-24 | 深圳市诺普信农化有限公司 | Method for preparing pesticide microemulsion |
Non-Patent Citations (2)
| Title |
|---|
| 赵宝顺等.阿维菌素- 哒螨灵微乳剂的研究.《江苏化工》.2003,第31卷(第2期),全文. * |
| 陈福良等.微乳剂低温稳定性的研究.《物理化学学报》.2002,第18卷(第7期),全文. * |
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Address after: 100080 Haidian District, Zhongguancun, Beijing street, No. 27, Zhongguancun building, room 14, room 1417 Patentee after: BEIJING GREEN AGROSINO CROP TECHNOLOGY CO.,LTD. Address before: 100080 Zhongguancun street, Haidian District, Zhongguancun building, No., layer 27, 14 Patentee before: BEIJING GREEN AGROSINO Corp. |
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Effective date of registration: 20170322 Address after: 100080 Haidian District, Zhongguancun, Beijing street, No. 27, Zhongguancun building, room 14, room 1417 Patentee after: BEIJING GREEN AGROSINO CROP TECHNOLOGY CO.,LTD. Patentee after: JIXI AGROSINO BIOTECHNOLOGY CO.,LTD. Address before: 100080 Haidian District, Zhongguancun, Beijing street, No. 27, Zhongguancun building, room 14, room 1417 Patentee before: BEIJING GREEN AGROSINO CROP TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20220908 Address after: 1901d, 19th floor, Zhongguancun building, No. 27, Zhongguancun Street, Haidian District, Beijing 100080 Patentee after: BEIJING GREEN AGROSINO CROP TECHNOLOGY CO.,LTD. Patentee after: HEBEI GREEN NONGHUA CROP TECHNOLOGY CO.,LTD. Address before: Room 1417, 14 / F, Zhongguancun building, No. 27, Zhongguancun Street, Haidian District, Beijing 100080 Patentee before: BEIJING GREEN AGROSINO CROP TECHNOLOGY CO.,LTD. Patentee before: JIXI AGROSINO BIOTECHNOLOGY CO.,LTD. |