CN101622991A - Microemulsion weeding composition containing paraquat and fluoroglycofen-ethyl - Google Patents
Microemulsion weeding composition containing paraquat and fluoroglycofen-ethyl Download PDFInfo
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- CN101622991A CN101622991A CN200910162037A CN200910162037A CN101622991A CN 101622991 A CN101622991 A CN 101622991A CN 200910162037 A CN200910162037 A CN 200910162037A CN 200910162037 A CN200910162037 A CN 200910162037A CN 101622991 A CN101622991 A CN 101622991A
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Abstract
The invention belongs to the field of pesticide compounding and preparation formulation processing, in particular to a microemulsion weeding composition which takes paraquat and fluoroglycofen-ethyl as active components and water as a carrier and adds a small amount of solvent and surfactant. Various raw materials are prepared into microemulsion products containing the paraquat and the fluoroglycofen-ethyl by a microemulsion processing technique. The microemulsion weeding composition is used for weeding dry lands, in particular to orchards, woodlands, mulberry lands and tea gardens, and weeding by carrying out spraying or protective directional spraying on maize, cane, soybean, cotton and other crops before sowing, after emergence or the grow middle-later stage in the fields.
Description
Technical field
The invention belongs to agriculture chemical compounding and formulation manufacture field.Being active component with paraquat and fluoroglycofen-ethyl specifically, is carrier with water, adds a small amount of solvent and surfactant again and forms.Each raw material is made the microemulsion product of paraquat and fluoroglycofen-ethyl by the microemulsion production and processing technology, is used for the nonirrigated farmland weeding.
Technical background
Paraquat, English general by name, Paraquat, chemical name: 1,1-dimethyl-4,4-bipyridyl dichloride, paraquat are second largest weed killer herbicides of consumption in the world, are only second to glyphosate.It is nonselective tagging property weed killer herbicide, for the multiple weeds in nonirrigated farmland the better prevention effect is arranged all.
Fluoroglycofen-ethyl, english common name: Fluoroglycofen, chemical name: 0-[5-(2-chloro-a; a; a-three fluoro-are right-toloxyl)-the 2-nitro benzoyl] hydroxyl ethyl acetate, fluoroglycofen-ethyl is tagging property weed killer herbicide, and most of broad leaved weeds are had preventive effect preferably.
In actual applications, paraquat is for some weeds such as kitchen garden, weeds effects such as clearvers, Veronica, Siberian cocklebur are relatively poor, preventive effect has only 20%-40%, and fluoroglycofen-ethyl has special efficacy to these type of weeds, can reach more than 95% with the preventive effect of the composite back of second carboxylic to these weeds, but fluoroglycofen-ethyl is invalid substantially to monocotyledon weed, can enlarge again after composite with paraquat and to kill the grass spectrum, so both composite beneficial effects are very obvious.
Summary of the invention
Goal of the invention: design a kind of weed killer herbicide efficiently that is used for the nonirrigated farmland weeding, this weed killer herbicide all has good preventive effect to the nonirrigated farmland overwhelming majority's weeds.
Design: in order to realize above-mentioned purpose of design.We test and adopt paraquat and fluoroglycofen-ethyl composite, in the orchard, forest land, mulberry field, tea place, and crop fields such as corn, sugarcane, soybean, cotton; Prior to seeding, broadcast before the seedling of back or the growth middle and later periods, adopt spraying or protectiveness directed spraying to prevent and kill off various weeds.Specifically, Herbicidal combinations of the present invention contains active component paraquat and fluoroglycofen-ethyl, and wherein paraquat (folding paraquat pyridylium) with the mass ratio of fluoroglycofen-ethyl is: 1: 0.025 to 1: 0.5, and between preferred 1: 0.1 to 1: 0.2.
The weight percentage of active component in the weeding combination is 1%～90%.Preferred 15%-50%.
The Herbicidal combinations of paraquat of the present invention and fluoroglycofen-ethyl for the ease of using and guarantee drug effect, and reaches the purpose of economy and environmental protection, and we are prepared into both with water after composite is the microemulsion of carrier.
Herbicidal microemulsion of the present invention contains paraquat and second carboxylic nitrofen is an active component, also contains solvent, surfactant and carrier water simultaneously.The solvent that wherein prepares microemulsion is selected from one or more in methyl alcohol, ethanol, isopropyl alcohol, dimethyl formamide, cyclohexanone, N-Methyl pyrrolidone, dimethyl sulfoxide (DMSO), toluene or the dimethylbenzene, its effect is the former medicine of dissolving fluoroglycofen-ethyl, thereby makes preparation more stable.
The surfactant of preparation microemulsion institute is selected from calcium dodecyl benzene sulfonate, castor oil acid polyoxy ethyl curing phosphate, sorbitan fatty acid ester APEO, phenyl phenol polyoxy ethyl ether, fatty alcohol-polyoxyethylene ether, phenethyl phenol polyoxy ethyl polyoxyethyl propyl ether, the poly-epoxy ethyl ether of cumylphenol formaldehyde resin or phenethyl fluosite and gathers in the epoxy ethyl ether one or more, its effect is effects such as emulsification, moistening, dispersion, infiltration, thereby make institute's preparaton more stable, drug effect is more outstanding.
A kind of in running water, deionized water or distilled water of carrier wet concentration of preparation microemulsion.
In the herbicidal composition of the present invention, the weight percentage that contains active component paraquat and fluoroglycofen-ethyl is 1-90%, and the content of solvent is 1-10%, and the content of surfactant is 1-15%, the carrier water of surplus.The weight percentage that preferably contains active component is 15-50%, and solvent is 1-7%, surfactant 1-10%, the carrier water of surplus.
The present invention also studies Herbicidal microemulsion preparation of compositions method, and the present invention can adopt the general preparation method of microemulsion to be prepared.After preferably under mechanical agitation, being dissolved in the fluoroglycofen-ethyl of one of active component in the organic solvent fully, adding surfactant and stir, add paraquat again and carrier water stirs, make the microemulsion of clear.
Beneficial effect
Compared with the prior art the present invention has following characteristics:
1. broad weed-killing spectrum.Two compounds combination back enlarges kills the grass spectrum, can disposablely prevent and kill off big Tanaka grassy weed and broad leaved weed.
2. synergistic effect is remarkable.Because two medicament action sites are close, synergistic effect is very obvious, and particularly to broad leaved weed, preventive effect reaches 95%-100%.
3, save labour, reduction drug cost, because therefore both complex preparation can reach a dispenser to the most of weeds of dry land super-high-efficient all, can separate the infringement of cutting weeds to crop and fruits and vegetables, thereby can save the labour, reduce drug cost, improve good results such as grower's income.
The present invention describes with the following example, but does not limit the present invention.
Preparation embodiment 1:12% paraquat second carboxylic microemulsion
Raw material consumption (percentage by weight)
Paraquat 11.5
Fluoroglycofen-ethyl 0.5
N-Methyl pyrrolidone 1.0
Dimethylbenzene 1.5
Calcium dodecyl benzene sulfonate 2.0
Castor oil acid polyoxy ethyl curing phosphate 4.5
Deionized water supplies 100
Processing method: take by weighing fluoroglycofen-ethyl and N-Methyl pyrrolidone and dimethylbenzene after under the mechanical agitation former medicine being dissolved fully according to above-mentioned prescription, add after surfactant calcium dodecyl benzene sulfonate, castor oil acid polyoxy ethyl curing phosphate stir, add paraquat and water again and stir and promptly get clear microemulsion product.
Preparation embodiment 2:16.5% paraquat second carboxylic microemulsion
Raw material consumption (percentage by weight)
Paraquat 15
Fluoroglycofen-ethyl 1.5
Ethanol 5
Calcium dodecyl benzene sulfonate 2.5
Phenyl phenol polyoxy ethyl ether 5
Fatty alcohol-polyoxyethylene ether 5
Deionized water supplies 100
Processing method: take by weighing fluoroglycofen-ethyl and ethanol by prescription, after under mechanical agitation, former medicine being dissolved fully, add surfactant calcium dodecyl benzene sulfonate, phenyl phenol polyoxy ethyl ether,, after fatty alcohol-polyoxyethylene ether stirs, add paraquat and water again and stir and promptly get the product of wanting.
Preparation embodiment 3 22% paraquat second carboxylic microemulsions
Raw material consumption (percentage by weight)
Paraquat 20
Fluoroglycofen-ethyl 3
Cyclohexanone 2
Dimethyl formamide 2
Calcium dodecyl benzene sulfonate 2.5
Phenethyl phenol polyoxy ethyl polyoxyethyl propyl ether 3
The cumylphenol formaldehyde resin gathers epoxy ethyl ether 2
Fatty alcohol-polyoxyethylene ether 2.5
Running water supplies 100
Processing method: former medicine fluoroglycofen-ethyl is dissolved fully under mechanical agitation with cyclohexanone, dimethyl formamide, add four kinds of surfactants then and stir, add paraquat and water again and stir and get final product.
Biometric applications embodiment one
Carrying out the indoor pot test of pesticide effectiveness with above-mentioned content microemulsion weeding composition, is 2 leaves, the kitchen gardens of 1 heart stage for the examination target, adopts 3WT-2 type spray tower to convert water spray, test site: Tai, Shandong Province Shandong Agricultural University education experiment base.Test method is carried out with reference to " agricultural chemicals indoor bioassay test rule weed killer herbicide ", adopts the cauline leaf facture.
Different formulations is to the determination of activity result of kitchen garden (investigation method adopts the absolute number investigation method, control time: after the dispenser 24 hours)
| The medicament title | Preparation consumption (gram/mu) | Strain lethality (%) | Fresh weight inhibiting rate (%) |
| 16.5% paraquat second carboxylic microemulsion (preparation embodiment 2) | ??50 | ??100 | ??100 |
| 22% paraquat second carboxylic microemulsion (preparation embodiment 3) | ??50 | ??100 | ??100 |
| (restraining no track) 20% paraquat aqua | ??50 | ??0 | ??34.1 |
| 10% fluoroglycofen-ethyl missible oil | ??10 | ??0 | ??56.9 |
Biometric applications embodiment two
Carry out field medicine effect test with above-mentioned content microemulsion weeding composition, test site is peach garden, Guo Li town, Zibo City, Shandong Province, and weeds are in the 2-5 leaf phase, spraying time: April 15, and two days investigation results behind the medicine:
What need understand is: though the foregoing description is to the present invention's detailed explanation of contrasting; but these explanations, just to simplicity of explanation of the present invention, rather than limitation of the present invention; any innovation and creation that do not exceed in the connotation of the present invention all fall into protection scope of the present invention.
Claims (8)
1. Herbicidal combinations, containing active component is paraquat and fluoroglycofen-ethyl, wherein the mass ratio of paraquat and fluoroglycofen-ethyl is: 1: 0.025 to 1: 0.5.
2. Herbicidal combinations according to claim 1, wherein the mass ratio of paraquat and fluoroglycofen-ethyl is 1: 0.1 to 1: 0.2.
3. Herbicidal combinations according to claim 1 and 2 is a kind of Herbicidal microemulsion, wherein also contains solvent, surfactant and carrier water,
Solvent is selected from one or more in methyl alcohol, ethanol, isopropyl alcohol, dimethyl formamide, cyclohexanone, N-Methyl pyrrolidone, dimethyl sulfoxide (DMSO), toluene or the dimethylbenzene,
Surfactant is selected from one or more in calcium dodecyl benzene sulfonate, castor oil acid polyoxy ethyl curing phosphate, sorbitan fatty acid ester APEO, phenyl phenol polyoxy ethyl ether, fatty alcohol-polyoxyethylene ether, phenethyl phenol polyoxy ethyl polyoxyethyl propyl ether, the poly-epoxy ethyl ether of cumylphenol formaldehyde resin or the poly-epoxy ethyl ether of phenethyl fluosite.
A kind of in running water, deionized water or distilled water of carrier wet concentration.
4. according to the described Herbicidal combinations of claim 3, the weight percentage of active component in preparation is 1-90%, and solvent is 1-10%, and surfactant is 1-15%, and carrier water is surplus.
5. according to the described Herbicidal combinations of claim 4, the weight percentage of active component in preparation is 15%-50%, and solvent is 1-7%, and surfactant is 1-10%, the carrier water surplus.
6. the preparation method of a Herbicidal combinations, it is characterized in that active component with the fluoroglycofen-ethyl in the claim 3-5 Herbicidal combinations is dissolved in the organic solvent fully under mechanical agitation after, adding surfactant stirs, add paraquat again and carrier water stirs, make the microemulsion of clear.
7. the purposes of a herbicidal composition is characterized in that the Herbicidal combinations with claim 1-5, uses the nonirrigated farmland weeding.
8. according to the purposes of the herbicidal composition of claim 7, it is characterized in that in the orchard, forest land, mulberry field, tea place, and corn, sugarcane, soybean, cotton crop field; Prior to seeding, broadcast before the seedling of back or the plant growing middle and later periods; Adopt spraying or protectiveness directed spraying to prevent and kill off various weeds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910162037A CN101622991B (en) | 2009-08-10 | 2009-08-10 | Microemulsion weeding composition containing paraquat and fluoroglycofen-ethyl |
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| CN200910162037A CN101622991B (en) | 2009-08-10 | 2009-08-10 | Microemulsion weeding composition containing paraquat and fluoroglycofen-ethyl |
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| CN101622991A true CN101622991A (en) | 2010-01-13 |
| CN101622991B CN101622991B (en) | 2012-09-12 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971809A (en) * | 2010-07-14 | 2011-02-16 | 湖北奥士特奥农药产品研发有限公司 | Weeding aqueous solution agent prepared by formulation of paraquat and prowess and preparation method thereof |
| CN102986490A (en) * | 2012-12-28 | 2013-03-27 | 长沙建益新材料有限公司 | Weeding moisturizing material, weeding moisturizing cloth and preparation method |
| CN103053564A (en) * | 2011-10-20 | 2013-04-24 | 南京华洲药业有限公司 | Composite insecticidal composition containing flonicamid and sec-butyl phenyl-N-methyl carbamate and application thereof |
| CN103891722A (en) * | 2012-12-30 | 2014-07-02 | 青岛锦涟鑫商贸有限公司 | Mesotrione-containing weeding composition |
| CN104872133A (en) * | 2015-03-28 | 2015-09-02 | 济南天邦化工有限公司 | Paraquat-fluoroglycofen ethyl water-soluble granule and preparation method thereof |
| CN104886062A (en) * | 2015-03-28 | 2015-09-09 | 济南天邦化工有限公司 | Paraquat-fluoroglycofen oil suspension and preparation method thereof |
| CN104886060A (en) * | 2015-03-28 | 2015-09-09 | 济南天邦化工有限公司 | Paraquat - B fluoroglycofen effervescent granules and preparation method |
| CN105638668A (en) * | 2016-01-14 | 2016-06-08 | 烟台顺隆化工科技有限公司 | Weed killer for mulberry field |
| CN106472511A (en) * | 2016-08-30 | 2017-03-08 | 枣阳市先飞高科农药有限公司 | A kind of synthesis technique of fluoroglycofen-ethyl active compound |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7135437B2 (en) * | 2000-05-19 | 2006-11-14 | Monsanto Technology Llc | Stable liquid pesticide compositions |
| CN1454475A (en) * | 2003-04-07 | 2003-11-12 | 周庆龙 | Micro emulsion herbicide |
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2009
- 2009-08-10 CN CN200910162037A patent/CN101622991B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971809A (en) * | 2010-07-14 | 2011-02-16 | 湖北奥士特奥农药产品研发有限公司 | Weeding aqueous solution agent prepared by formulation of paraquat and prowess and preparation method thereof |
| CN103053564A (en) * | 2011-10-20 | 2013-04-24 | 南京华洲药业有限公司 | Composite insecticidal composition containing flonicamid and sec-butyl phenyl-N-methyl carbamate and application thereof |
| CN102986490A (en) * | 2012-12-28 | 2013-03-27 | 长沙建益新材料有限公司 | Weeding moisturizing material, weeding moisturizing cloth and preparation method |
| CN102986490B (en) * | 2012-12-28 | 2014-01-01 | 长沙建益新材料有限公司 | Weeding moisturizing material, weeding moisturizing cloth and preparation method |
| CN103891722A (en) * | 2012-12-30 | 2014-07-02 | 青岛锦涟鑫商贸有限公司 | Mesotrione-containing weeding composition |
| CN104872133A (en) * | 2015-03-28 | 2015-09-02 | 济南天邦化工有限公司 | Paraquat-fluoroglycofen ethyl water-soluble granule and preparation method thereof |
| CN104886062A (en) * | 2015-03-28 | 2015-09-09 | 济南天邦化工有限公司 | Paraquat-fluoroglycofen oil suspension and preparation method thereof |
| CN104886060A (en) * | 2015-03-28 | 2015-09-09 | 济南天邦化工有限公司 | Paraquat - B fluoroglycofen effervescent granules and preparation method |
| CN105638668A (en) * | 2016-01-14 | 2016-06-08 | 烟台顺隆化工科技有限公司 | Weed killer for mulberry field |
| CN106472511A (en) * | 2016-08-30 | 2017-03-08 | 枣阳市先飞高科农药有限公司 | A kind of synthesis technique of fluoroglycofen-ethyl active compound |
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| CN101622991B (en) | 2012-09-12 |
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Address after: Zibo City Development Zone, Shandong province 256410 Jin Industrial Park North Fung Road No. 32 Patentee after: Zibo new agriculture crop science Co., Ltd. Address before: Zibo City Development Zone, Shandong province 256410 Jin Industrial Park North Fung Road No. 32 Patentee before: Zibo Xinnongji Pesticide Chemical Co., Ltd. |
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Denomination of invention: Microemulsion weeding composition containing paraquat and fluoroglycofen-ethyl Effective date of registration: 20180412 Granted publication date: 20120912 Pledgee: Shandong economic finance guarantee Limited by Share Ltd Pledgor: Zibo new agriculture crop science Co., Ltd. Registration number: 2018370000067 |
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