CN102027898A - Novaluron EW (Emulsion in Water) and preparation method thereof - Google Patents
Novaluron EW (Emulsion in Water) and preparation method thereof Download PDFInfo
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- CN102027898A CN102027898A CN201010554222XA CN201010554222A CN102027898A CN 102027898 A CN102027898 A CN 102027898A CN 201010554222X A CN201010554222X A CN 201010554222XA CN 201010554222 A CN201010554222 A CN 201010554222A CN 102027898 A CN102027898 A CN 102027898A
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Abstract
The invention relates to a pesticide preparation and a preparation method thereof, in particular to a novaluron EW (Emulsion in Water) and a preparation method thereof. The novaluron EW comprises the following components in parts by mass: 0.5-50 parts of novaluron technical, 1-15 parts of solvent, 1-15 parts of emulsifier, 0.1-10 parts of dispersing agent and thickener, 0.2-6 parts of co-emulsifier, 0.2-5 parts of antifreeze agent, 0.1-1.5 parts of defoaming agent and 0.1-3 parts of antimicrobial agent, a proper amount of pH regulator and the balance of deioned water. The novaluron EW has high control effect on cotton bollworm, Leguminivora glycinivorella, leaf roller, budworm, dendrolimus, white fly, thrip, rice stem borer and other insect pests harmful to various agricultural crops and garden crops, such as cotton, soybean, corn, fruit tree, rice, vegetables and the like. In the invention, no organic solvent or a little amount of organic solvent is used, thereby reducing preparation cost and use cost, lowering toxity to operators, storage and transport personnel and users during the processes of production, storage , transport and use. Therefore, the novaluron EW is an environmental-protection product with high safety.
Description
Technical field
The present invention relates to a kind of pesticidal preparations and preparation method thereof, specifically a kind of fluorine uride aqueous emulsion and preparation method thereof.
Background technology
Along with the enhancing gradually of people's environmental consciousness, increasing to the demand of the environmental protection type agricultural chemical of efficient, low toxicity, low-residual, the agricultural chemicals scientific workers are making great efforts to develop efficiently, low toxicity, the pesticide new variety of environmental protection, novel form.
Fluorine uride (novaluron) chemical name 1-(3-fluoro-4-(1; 1,2-three fluoro-2-(trifluoromethoxy ethyoxyl) phenyl)-3-(2, the 6-difluoro benzoyl) urea; by the exploitation of Israel Makhteshim chemicals Co., Ltd, CAS 116714-46-6.
Structural formula:
The fluorine uride belongs to process for preparation of benzoylurea compounds, be a kind of insect growth regulator, IGR, it is chitin synthesis inhibitor, can be applicable on various agricultural such as cotton, soybean, corn, fruit tree, vegetables and the horticultural crop, to many pest efficients, remarkable as drug effects such as cotton bollworm, heart-eating worm, leaf roller, diamond-back moth, cabbage caterpillar, pine caterpillars, aleyrodid, thrips.
This kind wide spectrum, efficient, low toxicity, low-residual.Environmentally friendly, selectivity is good, is that the ideal of pollution-free food medication is selected.
For a long time, emulsifiable concentrates for agricultural chemicals is one of main formulation of pesticidal preparations always.
Domestic and foreign literature report, the fluorine uride has only a kind of formulation of missible oil, and contains a large amount of organic solvents in the missible oil, exists to be easy to the unsafe factor and the fraud poisonous to human body, contaminated environment of catching fire, exploding.China lists superseded ranks in to this formulation of missible oil at present, and therefore exploitation is a medium with water, and the formulation of 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, fluorine uride 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 fluorine uride 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: the former medicine 0.5-50 of fluorine uride; Solvent 1-15; Emulsifier 1-15; Disperse thickener 0.1-10; Co-emulsifier 0.2-6; Antifreezing agent 0.2-5; Defoamer 0.1-1.5; Antimicrobial 0.1-3; The pH value conditioning agent is an amount of; Deionized water is mended to 100.
Described solvent be selected from dimethylbenzene, toluene, solvent naphtha, dimethyl formamide, dimethylacetylamide, dimethyl sulfoxide (DMSO), methyl alcohol, ethanol, acetone, butanone, cyclohexanone, N-Methyl pyrrolidone, N-alkyl pyrrolidone etc. one or more.
Described emulsifier is selected from oxirane-propylene oxide block copolymer, polyoxyethylene nonylphenol ether, the alkyl phenyl APEO, three (1-phenethyl) phenol APEO phosphate monoester or monoesters, the triethanolamine salt of diester mixture, polyoxyethylene sorbitol acid anhydride ester, alkylphenol polyoxyethylene, one or more in the calcium dodecyl benzene sulfonate etc.
Described thickener is selected from polyvinyl alcohol, gum Arabic, polyethylene glycol, one or more in polyacrylate, natural polysaccharide, polyacrylamide, xanthans, the Magnesiumaluminumsilicate etc.
Described co-emulsifier is selected from one or more in butanols, isobutanol, n-dodecane alcohol, n-tetradecanol, n-octadecane alcohol, NSC 77136 alcohol, the n-eicosane alcohol etc.
Described antifreezing agent is selected from one or more in ethylene glycol, propane diols, glycerine, urea, the mineral salt etc.
Described defoamer is selected from silicone oil, silicone compound, one or more in the C10-C20 saturated fat acid compounds C2-C12 saturated fat alcohol compound etc.
Described antimicrobial is selected from sorbic acid, benzoic acid, benzaldehyde, parahydroxyben-zaldehyde, 2-xenol, 1, one or more in 2-[4-morpholinodithio-3-ketone etc.
Described acidity regulator is selected from one or more in salt acid phosphoric acid, formic acid, acetate, citric acid, sodium hydroxide, potassium hydroxide, ammonium hydroxide, trimethylamine, triethylamine, the phosphate surfactants etc.
Preparation method of the present invention is:
(1) preparation of oil phase
Former medicine, solvent, cosolvent, emulsifier are added in the oil phase preparation still, and stirring and dissolving treats that it becomes the oil phase of homogeneous.
(2) preparation of water
Water, antifreezing agent, thickener, antimicrobial etc. are dropped in the water preparation still, stir and treat that it becomes the water of homogeneous.
(3) preparation of fluorine uride 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), then in the following oil phase that the above-mentioned water that has prepared (or oil phase) is added in the aqueous emulsion preparation still of high speed shear (or stirring) (or aqueous phase), under high speed shear (or stirring), disperse to form aqueous emulsion.
Described high-speed shearing machine (or stirring) rotating speed is 1000-20000 rev/min, and shearing (or stirring) time is 10-90 minute.
The fluorine uride 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 5kg of fluorine uride, solvent xylene 5kg, emulsifier three (1-phenethyl) phenol polyoxyethylene ether phosphate triethanolamine salt 2.5kg, co-emulsifier isobutanol 1kg, thickener polyvinyl alcohol 0.3kg, antifreeze glycol 1.0kg, antimicrobial sorbic acid 0.2, silicone defoaming agent 0.1kg, deionized water 84.9kg.Its preparation method:
1) preparation of oil phase
With former medicine, dimethylbenzene, isobutanol, emulsifier drops in the oil phase preparation still, constantly stirs and dissolves fully until the fluorine uride, becomes till the oil phase of homogeneous.
2) preparation of water
Water, polyvinyl alcohol, ethylene glycol, sorbic acid, organosilicon are joined in the water preparation still, constantly stir, become till the homogeneous water until dissolving fully.
3) preparation of fluorine uride aqueous emulsion
The above-mentioned oil phase that has prepared is prepared in the still to the aqueous emulsion of going into to be furnished with high-speed shearing machine (high-speed stirred), down the above-mentioned water that has prepared is added in the oil phase of aqueous emulsion preparation still in high speed shear (stirring) then, high speed shear (stirring) 60 minutes, 5% fluorine uride aqueous emulsion promptly is mixed with.
Table 1 5% fluorine uride EC and 5% fluorine uride EW are to the control efficiency of cotton cotton bollworm
From last table as seen, 5% fluorine uride EW2000 doubly is better than 5% fluorine uride EC to the preventive effect of cotton earworm.
Embodiment 2:
Take by weighing the former medicine 10kg of fluorine uride, solvent naphtha 5kg, dimethylbenzene 5kg, co-emulsifier dodecanol 2kg, emulsifier phenethyl phenol polyethenoxy polyethenoxy ether 5.0kg, thickener gum Arabic 0.5kg, antifreezing agent propane diols 2kg, antimicrobial benzaldehyde 0.6kg, defoamer organosilicon 0.2kg, deionized water 69.7kg.
The preparation method: above-mentioned raw materials is mixed with 10% fluorine uride aqueous emulsion by the preparation method's of embodiment 1 preparation procedure.
Embodiment 3:
Take by weighing fluorine uride 15kg, solvent xylene and N-crassitude cave 5kg, fatty alcohol-polyoxyethylene ether 6kg, thickener polyvinyl alcohol 0.2kg, antifreezing agent glycerine 1.5kg, antimicrobial benzoic acid 0.6kg, defoamer 0.2kg, deionized water 68.7kg.
The preparation method: above-mentioned raw materials is pressed embodiment 1 preparation method's preparation procedure, is mixed with 15% fluorine uride aqueous emulsion.
Embodiment 4:
Take by weighing fluorine uride raw material 20kg, solvent naphtha and N-crassitude cave 15kg, emulsifier phenethyl phenol polyethenoxy polyoxypropylene ether phosphate triethanolamine salt 10kg, co-emulsifier isobutanol 3kg, antifreezing agent, propane diols 2.0kg, thickener polyvinyl alcohol 0.4kg, antimicrobial parahydroxyben-zaldehyde 0.2kg, defoamer organosilicon 0.5kg, deionized water 48.9kg.
The preparation method: above raw material is made into 20% fluorine uride aqueous emulsion by embodiment 1 preparation method's operation sequence.
Claims (10)
1. a fluorine uride 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 each component and the mass percent thereof of this aqueous emulsion are as follows:
The former medicine 0.5-50 of fluorine uride; Solvent 1-15; Emulsifier 1-15; Disperse thickener 0.1-10; Co-emulsifier 0.2-6; Antifreezing agent 0.2-5; Defoamer 0.1-1; Antimicrobial 0.1-3; The pH value conditioning agent is an amount of; Deionized water is mended to 100.
2. fluorine uride aqueous emulsion according to claim 1 is characterized in that described solvent is selected from one or more of dimethylbenzene, toluene, solvent naphtha, dimethyl formamide, dimethylacetylamide, dimethyl sulfoxide (DMSO), methyl alcohol, ethanol, butanols, acetone, butanone, cyclohexanone, N-Methyl pyrrolidone, N-dodecyl pyrrolidone etc.
3. fluorine uride aqueous emulsion according to claim 1, it is characterized in that described emulsifier is selected from oxirane-propylene oxide block copolymer, polyoxyethylene nonylphenol ether, the alkyl phenyl APEO, the triethanolamine salt of the mixture of three (1-phenethyl) phenol APEO phosphate monoesters or monoesters and dibasic acid esters.Polyoxyethylene sorbitol acid anhydride ester, alkylphenol polyoxyethylene, calcium dodecyl benzene sulfonate, phenethyl phenol polyethenoxy ether, polyoxyethylene nonylphenol ether, one or more in the fatty alcohol-polyoxyethylene ether etc.
4. fluorine uride aqueous emulsion according to claim 1 is characterized in that described thickener is selected from: one or more of xanthans, polyvinyl alcohol, gum Arabic, polyethylene glycol, polyacrylamide, polyacrylate, natural polysaccharide, Magnesiumaluminumsilicate etc.
5. fluorine uride aqueous emulsion according to claim 1 is characterized in that described co-emulsifier is selected from: butanols, isobutanol, n-dodecane alcohol, one or more in n-tetradecanol, n-octadecane alcohol, NSC 77136 alcohol, the n-eicosane alcohol etc.
6. fluorine uride 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 (glycerine), the urea etc.
7. fluorine uride aqueous emulsion according to claim 1, it is characterized in that described defoamer is selected from: silicone oil, silicon cave compounds (silicone defoaming agent), C10-20 saturated fatty acid and ester type compound thereof, one or more in the C8-12 aliphatic alcohols compound etc.
8. fluorine uride aqueous emulsion according to claim 1 is characterized in that described pH value conditioning agent is selected from: one or more of hydrochloric acid, phosphoric acid, formic acid, acetate, citric acid, NaoH, KoH, triethanolamine, triethylamine, trimethylamine, phosphate surfactants etc.
9. fluorine uride aqueous emulsion according to claim 1 is characterized in that described antimicrobial is selected from: sorbic acid, benzoic acid, benzaldehyde, parahydroxyben-zaldehyde, 2-xenol, 1, one or more of 2-[4-morpholinodithio-3-ketone etc.
10. fluorine uride aqueous emulsion according to claim 1 is characterized in that described manufacture method is:
(1) preparation of oil phase: with former medicine, solvent, emulsifier, co-emulsifier adds stirring and dissolving in the oil phase modulation kettle, makes it become the oil phase of homogeneous;
(2) preparation of water:, make it become the water of homogeneous with mixing in input waters such as water, antifreezing agent, the antimicrobial preparation still;
(3) preparation of 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 fluorine uride aqueous emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010554222XA CN102027898A (en) | 2010-11-11 | 2010-11-11 | Novaluron EW (Emulsion in Water) and preparation method thereof |
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| CN201010554222XA CN102027898A (en) | 2010-11-11 | 2010-11-11 | Novaluron EW (Emulsion in Water) and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102318630A (en) * | 2011-07-19 | 2012-01-18 | 陕西美邦农药有限公司 | Insecticidal composition containing novaluron and ethiprole |
| US20160272866A1 (en) * | 2011-09-22 | 2016-09-22 | Tetsuya Shibano | Antifreeze solution, depletion prevention agent for a plant and heating medium solution |
-
2010
- 2010-11-11 CN CN201010554222XA patent/CN102027898A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102318630A (en) * | 2011-07-19 | 2012-01-18 | 陕西美邦农药有限公司 | Insecticidal composition containing novaluron and ethiprole |
| US20160272866A1 (en) * | 2011-09-22 | 2016-09-22 | Tetsuya Shibano | Antifreeze solution, depletion prevention agent for a plant and heating medium solution |
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Application publication date: 20110427 |