CN102125029A - Trifluralin emulsion in water and preparation method thereof - Google Patents
Trifluralin emulsion in water and preparation method thereof Download PDFInfo
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- CN102125029A CN102125029A CN2010106172728A CN201010617272A CN102125029A CN 102125029 A CN102125029 A CN 102125029A CN 2010106172728 A CN2010106172728 A CN 2010106172728A CN 201010617272 A CN201010617272 A CN 201010617272A CN 102125029 A CN102125029 A CN 102125029A
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- aqueous emulsion
- trefanocide
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- trifluralin
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Abstract
The invention relates to a pesticide preparation and a preparation method thereof, in particular to a trifluralin emulsion in water and a preparation method thereof. The trifluralin emulsion in water comprises the following components in part by mass: 0.5 to 48 parts of trifluralin, 1 to 20 parts of solvent, 1 to 16 parts of emulsifier, 0.1 to 5 parts of thickening agent, 0 to 8 parts of antifreezing agent, 0.1 to 1.6 parts of defoaming agent, 0 to 3 parts of antimicrobial agent, a proper amount of pH value regulator, and the balance of deionized water. The trifluralin emulsion in water is a selective pre-emergence soil treatment agent, and is mainly absorbed through coleoptiles and hypocotyls of weeds. The trifluralin emulsion in water has the effect on gramineous and partial small-seed broadleaf weeds, and is applicable to cotton, soybeans, rape, peanuts, potatoes and the like. The trifluralin emulsion in water does not contain or rarely contains an organic solvent, so the manufacturing cost and use cost are reduced, and the toxicity produced to operators, storers and transporters, and users is reduced in the process of production, storage and transportation; and the trifluralin emulsion in water is a product which is environmental-friendly and has high safety.
Description
Technical field
The present invention relates to a kind of pesticidal preparations and preparation method thereof, specifically a kind of trefanocide aqueous emulsion and preparation method thereof.
Background technology
Along with people's environmental consciousness is more and more stronger, to craving for of efficient, low toxicity, low-residual, environmental protection type agricultural chemical, the agricultural chemicals scientific workers, effort exploitation day and night is efficient, low toxicity, the pesticide new variety of environmental protection, novel form.
The trefanocide chemical name: 2,6-dinitro-N, N-di-4-5-trifluoromethylaniline.
Structural formula:
Toxicity: to people and animals' low toxicity.The oral LD50 of rat acute＞10000 milligram/kilogram, rabbit is acute through skin LD50＞20000 milligram/kilogram.To the birds low toxicity, to the high poison of fish.
Characteristics: volatile, easy photodissociation, aqueous solvent are minimum, are difficult for moving in soil layer.Be processing soil treatment agent before the selectivity bud, mainly coleoptile and the plumular axis by weeds absorbs, and invalid to the weeds of being unearthed, effective to the broad leaved weed of grass family and part small-sized seed, the lasting period is long.
The scope of application: be applicable to cotton, soybean, rape, peanut, potato, winter wheat, barley, sunflower, carrot, sugarcane, tomato, eggplant, capsicum, cabbage, cauliflower, celery and orchard, mulberry field, effect such as melon, prevent and kill off that barnyard grass grass, lady's-grass, eleusine indica, Johnson grass, moleplant seed, eragrostis cilianensisLink, annual bluegrass, bromegrass, hard grass, caput are careless, amaranth, lamb's-quarters, kitchen garden, chickweed, knotweed, plaque are held, 1 year grass family such as puncture vine and part broad leaved weed.
Long-term by one, the process preparation of trefanocide is main formulation with missible oil always.Exist inflammable, explosive, unsafe factor such as poisonous and contain a large amount of organic solvents in the missible oil.At present, China lists superseded row in to this formulation of missible oil.Therefore, the novel form of exploitation environmental protection, safety, low toxicity has been the task of top priority.
Summary of the invention
Technical problem to be solved by this invention is in order to overcome above-mentioned the deficiencies in the prior art, a kind of production, accumulating, safe in utilization to be provided, environment-friendly type, trefanocide aqueous emulsion that cost is low and preparation method thereof.
The technical scheme that the present invention solves the problems of the technologies described above employing is a kind of trefanocide aqueous emulsion, it is characterized in that each component is made into oil phase and water respectively, then shear through high-speed shearing machine and disperse to make, this aqueous emulsion adopts the raw material of substance of following component and mass percent thereof: trefanocide 0.5-48; Solvent 1-20; Emulsifier 1-16; Thickener 0.1-5; Antifreezing agent 0-8; Defoamer 0.1-1.6; Antimicrobial 0-3; The pH value conditioning agent is an amount of; Deionized water is mended to 100.
Described solvent is selected from one or more in dimethylbenzene, toluene, solvent naphtha, dimethyl formamide, dimethylacetylamide, dimethyl sulfoxide (DMSO), methyl alcohol, ethanol, butanols, cyclohexanol, butanone, cyclohexanone, N-Methyl pyrrolidone, the N-octyl group pyrrolones etc.
Described emulsifier is selected from one or more in triethanolamine salt, polyoxyethylene sorbitol acid anhydride ester, alkylphenol polyoxyethylene, neopelex, phenethyl phenol polyethenoxy ether, phenethyl APEO phosphate monoester or monoesters and diester mixture triethanolamine salt, the fatty alcohol-polyoxyethylene ether etc. of oxirane propylene oxide block polymer, hydroxybenzene polyoxydivinyl ether phosphate monoester or monoesters and diester mixture.
Described thickener is selected from one or more in polyvinyl alcohol, gum Arabic, polyethylene glycol, polyacrylamide, polyacrylate, natural polysaccharide, xanthans, the Magnesiumaluminumsilicate etc.
Described antifreezing agent is selected from one or more in ethylene glycol, propane diols, glycerine (glycerine), urea, the mineral salt etc.
Described defoamer is selected from one or more in silicone oil, silicone compound, C10-20 saturated fatty acid and ester class, the C8-12 aliphatic alcohols etc.
Described antimicrobial is selected from sorbic acid, benzoic acid, benzaldehyde, parahydroxyben-zaldehyde, 1, one or more of 2-[4-morpholinodithio-3-ketone etc.
Described pH value conditioning agent is selected from hydrochloric acid, phosphoric acid, formic acid, acetate, citric acid, NaoHKOH, NH
4In OH, triethanolamine, trimethylamine, the triethylamine etc. one or more.
Preparation method of the present invention is:
(1) preparation of oil phase: former medicine, solvent, emulsifier are added in the oil phase preparation still, and stirring and dissolving treats that it becomes uniform oil phase.
(2) preparation of water: water, antifreezing agent, thickener, antimicrobial etc. are dropped in the water preparation still, stir and treat that it becomes uniform water.
(3) preparation of trefanocide aqueous emulsion: with the above-mentioned oil phase for preparing (or water), add in the aqueous emulsion preparation still of being furnished with high-speed shearing machine (or homogenizer), down the above-mentioned water that has prepared (or oil phase) being added aqueous emulsion in high speed shear (or stirring) then prepares in the oil phase of (4) in the still (or aqueous phase), under high speed shear (or stirring), disperse to form aqueous emulsion.
Described high-speed shearing machine (or stirring) rotating speed is 2000-20000 rev/min, and shearing (or stirring) time is 15-120 minute.
The trefanocide aqueous emulsion of above-mentioned preparation owing to being dispersion medium with water, uses no or little organic solvent, therefore, has the following advantages:
1) do not burn, do not explode, production, transportation, storage, safe in utilization;
2) reduced toxicity, helped producing, transport, storage, user's health;
3) reduce production costs, also reduce use cost;
4) help environmental protection.
Embodiment
Below in conjunction with example the present invention is further described:
Embodiment 1:
Take by weighing the former medicine 10kg of trefanocide, dimethylbenzene 10kg, emulsifier oxireme propylene oxide block copolymer 5kg disperses thickener polyvinyl alcohol 0.5kg, antifreeze glycol 2.0kg, defoamer 0.1kg, deionized water is supplied 100kg.Its preparation method:
1) preparation of oil phase
The former medicine of trefanocide, dimethylbenzene, oxireme propylene oxide block copolymer are dropped in the oil phase preparation still, stir, mix, dissolve.Make it to become uniform oil phase.
2) preparation of water
Deionized water, polyvinyl alcohol, ethylene glycol, silicone defoaming agent etc. are put in the water preparation still, and stirring, mixed dissolution make it to become uniform water.
3) preparation of trefanocide aqueous emulsion
The above-mentioned oil phase that has prepared (or water) is put in the trefanocide preparation still of being furnished with high-speed shearing machine, under high speed shear, the above-mentioned water that has prepared (or oil phase) is joined in the aqueous emulsion preparation still that has oil phase, high speed shear was disperseed 60 minutes, 10% trefanocide aqueous emulsion.
Embodiment 2:
Take by weighing the former medicine 20kg of trefanocide, solvent xylene 10kg, solvent naphtha 10kg, emulsifier three (1-phenethyl) phenol polyoxyethylene ether phosphate triethanolamine salt 6kg, dispersion thickener polyvinyl alcohol 0.3kg, antifreeze glycol 1.2kg, silicone defoaming agent 0.1kg, remove the dried up 100kg of supplying, with the aqueous emulsion Preparation Method of above-mentioned raw material, be mixed with 20% trefanocide aqueous emulsion according to embodiment 1.
Embodiment 3:
Take by weighing the former medicine 30kg of trefanocide, dimethylbenzene 20.0kg, solvent naphtha 15.0kg, oxireme propylene oxide block district polymers 10.0kg, polyvinyl alcohol 0.3kg, ethylene glycol 1.0kg, silicone defoaming agent 0.1kg, deionized water and supply 100kg.Above raw material are mixed with 30% trefanocide aqueous emulsion by embodiment 1 aqueous emulsion compound method.
Claims (9)
1. a trefanocide aqueous emulsion is characterized in that each component of described aqueous emulsion is made into oil phase and water respectively, then shears through high-speed shearing machine and disperses to make, and it is characterized in that each component of this aqueous emulsion and mass percent thereof are: trefanocide 0.5-48; Solvent 1-20; Emulsifier 1-16; Thickener 0.1-5; Antifreezing agent 0-8; Defoamer 0.1-1.6; Antimicrobial 0-3; The pH value conditioning agent is an amount of; Deionized water is mended to 100.
2. trefanocide aqueous emulsion according to claim 1 is characterized in that described solvent is selected from one or more in dimethylbenzene, toluene, solvent naphtha, dimethyl formamide, dimethylacetylamide, dimethyl sulfoxide (DMSO), methyl alcohol, ethanol, butanols, cyclohexanol, butanone, cyclohexanone, N-Methyl pyrrolidone, the N-octyl group pyrrolones etc.
3. trefanocide aqueous emulsion according to claim 1 is characterized in that described emulsifier is selected from one or more in the triethanolamine salt of oxirane propylene oxide block polymer, hydroxybenzene polyoxydivinyl ether phosphate monoester or monoesters and diester mixture, polyoxyethylene sorbitol acid anhydride ester, alkylphenol polyoxyethylene, neopelex, phenethyl phenol polyethenoxy ether, phenethyl APEO phosphate monoester or monoesters and diester mixture triethanolamine salt, the fatty alcohol-polyoxyethylene ether etc.
4. trefanocide aqueous emulsion according to claim 1 is characterized in that described thickener is selected from one or more in polyvinyl alcohol, gum Arabic, polyethylene glycol, polyacrylamide, polyacrylate, natural polysaccharide, xanthans, the Magnesiumaluminumsilicate etc.
5. trefanocide aqueous emulsion according to claim 1 is characterized in that described antifreezing agent is selected from one or more in ethylene glycol, propane diols, glycerine, urea, the mineral salt etc.
6. trefanocide aqueous emulsion according to claim 1 is characterized in that described defoamer is selected from one or more in silicone oil, silicone compound, C10-20 saturated fatty acid and ester class, the C8-12 aliphatic alcohols etc.
7. trefanocide aqueous emulsion according to claim 1 is characterized in that described pH value conditioning agent is selected from hydrochloric acid, phosphoric acid, formic acid, acetate, citric acid, NaoHKOH, NH
4In OH, triethanolamine, trimethylamine, the triethylamine etc. one or more.
8. trefanocide aqueous emulsion according to claim 1 is characterized in that described antimicrobial is selected from sorbic acid, benzoic acid, benzaldehyde, parahydroxyben-zaldehyde, 1, one or more of 2-[4-morpholinodithio-3-ketone etc.
9. trefanocide aqueous emulsion according to claim 1 is characterized in that described manufacture method is:
(1) preparation of oil phase: the former medicine of trefanocide, solvent, emulsifier are added stirring and dissolving in the oil phase modulation kettle, make it become uniform oil phase;
(2) preparation of water:, make it become uniform water with mixing in input waters such as water, antifreezing agent, the antimicrobial preparation still;
(3) preparation of trefanocide aqueous emulsion: in the aqueous emulsion preparation still of configuration high-speed clipper, drop into the above-mentioned oil phase that has prepared (or water), start high-speed shearing machine, the above-mentioned water that has prepared (or oil phase) is added in the aqueous emulsion preparation still, under high speed shear, disperse to make the trefanocide aqueous emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106172728A CN102125029A (en) | 2010-12-21 | 2010-12-21 | Trifluralin emulsion in water and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106172728A CN102125029A (en) | 2010-12-21 | 2010-12-21 | Trifluralin emulsion in water and preparation method thereof |
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| CN102125029A true CN102125029A (en) | 2011-07-20 |
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| CN2010106172728A Pending CN102125029A (en) | 2010-12-21 | 2010-12-21 | Trifluralin emulsion in water and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104686550A (en) * | 2013-12-05 | 2015-06-10 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron and trifluralin |
| CN105432623A (en) * | 2015-12-31 | 2016-03-30 | 上海丰信环保科技有限公司 | Bactericide capable of controlling growth of landscape algae and free of toxic and side effects |
| CN106818124A (en) * | 2016-12-25 | 2017-06-13 | 菏泽市农业科学院 | A kind of cultural method of Peanut efficient water use |
| CN112741083A (en) * | 2019-10-31 | 2021-05-04 | 江苏七洲绿色化工股份有限公司 | Trifluralin missible oil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2131694A (en) * | 1982-12-10 | 1984-06-27 | Pan Britannica Ind Ltd | Herbicidal compositions |
| US4541860A (en) * | 1980-06-06 | 1985-09-17 | Montedison S.P.A. | Stable compositions of N-(3,4-dichlorophenyl)-N'-methoxy-N'-methylurea (linuron) and 2,6-dinitro-N,N-dipropyl-4-trifluoro-methylaniline (trifluralin) in emulsion |
| CN1514686A (en) * | 2001-02-14 | 2004-07-21 | ������ɽ���� | Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion |
-
2010
- 2010-12-21 CN CN2010106172728A patent/CN102125029A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4541860A (en) * | 1980-06-06 | 1985-09-17 | Montedison S.P.A. | Stable compositions of N-(3,4-dichlorophenyl)-N'-methoxy-N'-methylurea (linuron) and 2,6-dinitro-N,N-dipropyl-4-trifluoro-methylaniline (trifluralin) in emulsion |
| GB2131694A (en) * | 1982-12-10 | 1984-06-27 | Pan Britannica Ind Ltd | Herbicidal compositions |
| CN1514686A (en) * | 2001-02-14 | 2004-07-21 | ������ɽ���� | Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion |
Non-Patent Citations (1)
| Title |
|---|
| 魏建兵等: "沈阳地区草坪禾本科杂草化学防除技术研究", 《草业科学》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104686550A (en) * | 2013-12-05 | 2015-06-10 | 南京华洲药业有限公司 | Mixed herbicide containing flazasulfuron and trifluralin |
| CN105432623A (en) * | 2015-12-31 | 2016-03-30 | 上海丰信环保科技有限公司 | Bactericide capable of controlling growth of landscape algae and free of toxic and side effects |
| CN106818124A (en) * | 2016-12-25 | 2017-06-13 | 菏泽市农业科学院 | A kind of cultural method of Peanut efficient water use |
| CN112741083A (en) * | 2019-10-31 | 2021-05-04 | 江苏七洲绿色化工股份有限公司 | Trifluralin missible oil |
| WO2021082457A1 (en) * | 2019-10-31 | 2021-05-06 | Jiangsu Sevencontinent Green Chemical Co., Ltd. | Trifluralin emulsifiable composition |
| AU2020244369B2 (en) * | 2019-10-31 | 2021-12-02 | Jiangsu Sevencontinent Green Chemical Co., Ltd. | Trifluralin emulsifiable composition |
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Application publication date: 20110720 |