CN104823969A - Development and application of fatty acid methyl ester serving as environment-friendly solvent in pesticide preparations - Google Patents
Development and application of fatty acid methyl ester serving as environment-friendly solvent in pesticide preparations Download PDFInfo
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Abstract
The invention belongs to the technical field of farm chemicals and discloses development and application of fatty acid methyl ester serving as environment-friendly solvent in pesticide preparations. The fatty acid methyl is adopted for replacing high-toxicity solvents in massive use at present. The fatty acid methyl which serves as the environment-friendly solvent is directly added in production of the pesticide preparations and capable of dissolving and dispersing active ingredients of pesticides, and after the fatty acid methyl ester is combined with other additives, qualified pesticide preparation products can be made by stirring, mixing, shearing or grinding. The fatty acid methyl ester is applicable to all pesticide products such as mineral pesticides, biological pesticides, chemical synthetic pesticides and the like.
Description
Technical field
What the present invention relates to is technical field of pesticide, and specifically fatty acid methyl ester replaces the Application and Development of high malicious organic solvent in pesticidal preparations, and the present invention is applicable to all Pesticidal products such as mineral sources agricultural chemicals, biogenic pesticide, chemical synthetic pesticide.
Background technology
Agricultural chemicals can be used for kill insects, fungi and other damages to crops growth biology.The agricultural chemicals used the earliest has dichlorodiphenyl trichloroethane, hexachlorcyclohexane etc., and they can eliminate destructive insects in a large number.But their good stability, can long-term existence in the environment, and constantly accumulates in animals and plants and human body, is eliminated for this reason.Use organophosphorous pesticide instead afterwards, as dichlorvos etc., substitute initial agricultural chemicals.But they contain P elements, easily cause aquatic organism eutrophication.
Along with the enhancing of the environmental protection consciousnesses such as environmental protection, low-carbon (LC), safety; the transition of present agrochemical enterprise is extremely urgent; especially the enterprise of missible oil series products is produced; must set out with the angle of environmental protection, low toxicity, easily degraded to the selection of solvent, replace the organic solvent that the toxicity such as the benzene,toluene,xylene in the past used are higher.
China's agricultural chemicals is through development for many years, define and comprised the supporting comparatively complete pesticide industry system of research and development of new product, the production of former medicine, preparation processing, raw material and intermediate, the production capacity of agricultural chemicals and output have been in prostatitis, the world, product quality steadily improves, and kind and formulation all constantly increase, and drug effect still belongs to missible oil product preferably, because it use a part of solvent, plant wax coat can be dissolved, promote that liquid absorbs, thus play higher drug effect.
The continuous reinforcement of present environmental consciousness, the requirement that Ministry of Agriculture's solvent higher to some toxic sets forbidding or limit the use of, along with the reinforcement of law enforcement dynamics, existing pesticidal preparations manufacturing enterprise must replace using high malicious organic solvent to carry out renewal, fatty acid methyl ester as nontoxic, the easy degraded of novel botanical solvent, poisoning can not be produced to crops, and the adhesive force of liquid at plant surface can be strengthened, strengthen resistance of rainwater washing against ability, based on above advantage, fatty acid methyl ester is by the magnificent wonderful stage climbing up pesticidal preparations.
Summary of the invention
The object of the invention is for agricultural byproducts edible safety, alleviate environmental protection pressure, the disagreeableness organic solvent environmentally friendly solvent fatty acid methyl ester used in pesticidal preparations is substituted in whole or in part, make its safety meeting present stage, environmental protection concept, ensure that the quality of the pharmaceutical preparations reaches or surmounts original technical indicator and result of use.
In order to solve the problem, the present invention is achieved by the following technical solutions:
Fatty acid methyl ester is as the Application and Development of environmentally friendly solvent in pesticidal preparations, and described fatty acid methyl ester is used for substituting the high organic solvent of toxicity in traditional pesticidal preparations, as carrene, benzene,toluene,xylene, tetrachloromethane, chloroform etc.
Preferably, described fatty acid methyl ester is that raw material is produced with vegetable oil, described vegetable oil is the by product grease of soybean oil, corn oil, palm oil, rapeseed oil, cottonseed oil, peanut oil, sunflower seed wet goods vegetable oil, production vegetable oil, comprise acidification oil fatty acid, deodorizing distillate etc., the fatty acid methyl ester of production is for comprising C
6to C
22, the mixture of independent or multiple fatty acid methyl ester.
Preferably, described fatty acid methyl ester comprises one or more in methylated vegetable oils, methyl oleate and biodiesel.
Preferably, described pesticidal preparations comprise missible oil, dispersible oil-suspending agent, aqueous emulsion, suspension emulsion, ultra low volume spraying agent and suspending agent.
Preferably, in missible oil, required pesticide active ingredient, emulsifier, stabilizing agent and fatty acid methyl ester are carried out taking, stirring according to required ratio.
Preferably, for dispersibling in oil-suspending agent, required pesticide active ingredient, emulsifier, dispersant, stabilizing agent, thickener and fatty acid methyl ester are uniformly mixed, with sand mill, mixture is ground again, when material particular diameter reaches D (90)=2-5 μm, sampling detects, and can be packaged as finished product after qualified.
Preferably, in aqueous emulsion, required pesticide active ingredient fatty acid methyl ester is dissolved completely, drop into emulsifier, dispersant and stabilizing agent and mix as oil phase for subsequent use; Thickener, preservative, defoamer, antifreezing agent and deionized water are mixed as aqueous phase for subsequent use; Add in aqueous phase by slow for oil phase stream in a shear condition, shear and homogenize, when particle diameter is less than 1 μm, sampling detects, and can be packaged as finished product after qualified.
Preferably, for in suspension emulsion, by solid constituent in required pesticide active ingredient and the circulation of wetting agent, dispersant, stabilizing agent, preservative, defoamer, thickener, antifreezing agent and deionized water and stirring, to be mixed evenly after, sand mill is adopted to grind, when material particular diameter reaches D (90)=2-5 μm, sampling detects, qualified rear mutually for subsequent use as suspending agent; By liquid crude in required pesticide active ingredient or the former powder of low melting point, dissolve with fatty acid methyl ester, dissolve completely add emulsifier, stabilizing agent mixes rear for subsequent use as oil phase; Slow for oil phase stream is added suspending agent mutually in, shear evenly, sampling detects, and can be packaged as finished product after qualified;
For in ultra low volume spraying agent, required pesticide active ingredient, auxiliary agent and fatty acid methyl ester are carried out taking, stirring according to required ratio;
For in suspending agent, required pesticide active ingredient, emulsifier, dispersant, stabilizing agent, thickener, fatty acid methyl ester and deionized water are uniformly mixed, with sand mill, mixture is ground again, when material particular diameter reaches D (90)=2-5 μm, sampling detects, and can be packaged as finished product after qualified.
Preferably, described emulsifier is: one or more in the addition condensation thing of calcium dodecyl benzene sulfonate, styryl phenyl APEO, styrylphenol formaldehyde resin polyoxyethylene polyoxypropylene block polyether, fatty alcohol-polyoxyethylene ether, castor oil and oxirane, accounts for the 1-15% of total formulation weight amount; Described stabilizing agent is: one or more in pH adjusting agent, ultraviolet absorber, deflocculant, accounts for the 0.1-10% of total formulation weight amount; Described dispersant is: polycarboxylic acid salt, naphthalenesulfonate formaldehyde condensation compound, one or more in multi-styrene phenylate phosphate, lignosulfonates, accounts for the 1-10% of total formulation weight amount; Described thickener is: one or more in aluminium-magnesium silicate, organobentonite, xanthans, carboxymethyl cellulose, white carbon, accounts for the 0-8% of total formulation weight amount; Described preservative is: one or more in benzoic acid, sorbic acid, Kathon CG, formaldehyde, accounts for the 0.1-3% of total formulation weight amount; Described defoamer is: one or more in organosiloxane, polyethers, higher alcohols, accounts for the 0.1-1% of total formulation weight amount; Described antifreezing agent is: one or more in ethanol, ethylene glycol, propane diols, glycerine, urea, accounts for the 0-10% of total formulation weight amount; Described wetting agent is: one or more in alkyl sulfate, sulfonate, fatty acid or fatty acid ester sulphate, polyoxyethylene aliphatic alcohol ether, accounts for the 1-5% of total formulation weight amount.
Preferably, divide according to purposes, described pesticidal preparations comprises weed killer herbicide, insecticide, bactericide and plant growth regulator.
Advantage of the present invention:
1. the petrochemical industry kind solvent that the solvent used in traditional pesticidal preparations mostly is high poison, not easily degrades; now along with the consciousness of food security and environmental protection is rooted in the hearts of the people gradually; national correlation department has been put into effect policy forbidding or has been limited the use of partial solvent; in order to our health of human body and harmonious environment; the solvent being badly in need of exploitation safety and environmental protection class replaces these toxic solvents; fatty acid methyl ester is in the Application and Development of pesticidal preparations; due to its be easy to get, the advantage of cheap, nontoxic, easy degraded, well solve these problems above-mentioned.
2. the raw material of fatty acid methyl ester is vegetable oil, or produces the by product after edible oil, wide material sources, and the difficult problem solving the process of edible oil plant-site by-product product.
3. use fatty acid methyl ester processing pesticidal preparations, concerning processing factory, than traditional petro chemical solvent safety, because the flash-point of fatty acid methyl ester, volatility, smell are all better than conventional solvent.
4. fatty acid methyl ester is applied in pesticidal preparations, and other additives have excellent compatibility, and easy emulsification can not affect the stability of pesticidal preparations.
5. the spreadability that fatty acid methyl ester is good and low volatility, impel liquid at the increased retention of plant surface, play the effect giving full play to drug effect.
Embodiment
Following examples are further described technical scheme of the present invention, and the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and detailed process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1. fatty acid methyl ester as the Application and Development of environmentally friendly solvent in pesticidal preparations, in missible oil (EC), each component and mass percent as follows:
Preparation method: by clethodim, calcium dodecyl benzene sulfonate, styryl phenyl APEO, stabilizing agent, fatty acid methyl ester by required weight accurate weighing, and agitation cycle, speed of agitator 800-1900rpm, circulation timei 60-120min, after all materials mix, sampling detects, and qualifiedly can pack warehouse-in.
Embodiment 2. fatty acid methyl ester as the Application and Development of environmentally friendly solvent in pesticidal preparations, for dispersibling in oil-suspending agent (OD), each component and mass percent as follows:
Preparation method: fatty acid methyl ester, fatty alcohol-polyoxyethylene ether, calcium dodecyl benzene sulfonate are uniformly mixed, add nicosulfuron, organobentonite agitation cycle, speed of agitator 800-1900rpm, circulation timei 60-120min, after all materials mix, enter sand mill grinding, when material particular diameter reaches D (90)=3-5 μm, sampling detects, and qualifiedly can pack warehouse-in.
Embodiment 3. fatty acid methyl ester as the Application and Development of environmentally friendly solvent in pesticidal preparations, in aqueous emulsion (EW), each component and mass percent as follows:
Preparation method: chlopyrifos, solvent naphtha, fatty acid methyl ester are uniformly mixed, adds styrene phenol formaldehyde resin polyoxyethylene polyoxypropylene block polyether, castor oil mixes as oil phase for subsequent use with the addition condensation thing of oxirane; Multi-styrene phenylate phosphate, Kathon CG, organosiloxane, propane diols, xanthans, deionized water and stirring are mixed as aqueous phase for subsequent use; Under shearing condition, slow for above-mentioned oil phase stream is added in aqueous phase, after continue shear and homogenize, when particle diameter is less than 1 μm, sampling detects, and qualifiedly can pack warehouse-in.
Embodiment 4. fatty acid methyl ester as the Application and Development of environmentally friendly solvent in pesticidal preparations, in suspension emulsion (SE), each component and mass percent as follows:
Preparation method: by Difenoconazole, polyoxyethylene aliphatic alcohol ether, naphthalenesulfonate formaldehyde condensation compound, benzoic acid, higher alcohols, urea, aluminium-magnesium silicate, xanthans, deionized water mixing and stirring, speed of agitator 800-1900rpm, circulation timei 60-120min, after all materials mix, enter sand mill grinding, when material particular diameter reaches D (90)=3-5 μm, mutually for subsequent use as suspending agent, by propiconazole, fatty acid methyl ester, calcium dodecyl benzene sulfonate is uniformly mixed and uses as oil phase, under shearing condition, slow for oil phase stream is added suspending agent mutually in, shear and homogenize, sampling detects, qualifiedly warehouse-in can be packed.
Embodiment 5. fatty acid methyl ester as the Application and Development of environmentally friendly solvent in pesticidal preparations, in ultra low volume spraying agent (ULV), each component and mass percent as follows:
Sumicidin 50g/L
Fatty alcohol-polyoxyethylene ether 180g/L
Fatty acid methyl ester is mended to 1L
Preparation method: by sumicidin, fatty alcohol-polyoxyethylene ether, fatty acid methyl ester by required weight accurate weighing, and agitation cycle, speed of agitator 800-1900rpm, circulation timei 60-120min, after all materials mix, sampling detects, and qualifiedly can pack warehouse-in.
Embodiment 6. fatty acid methyl ester as the Application and Development of environmentally friendly solvent in pesticidal preparations, in suspending agent (SC), each component and mass percent as follows:
Preparation method: fatty acid methyl ester, calcium dodecyl benzene sulfonate, phenethyl phenol APEO, sodium lignin sulfonate, naphthalenesulfonate formaldehyde condensation compound, Kathon CG, organic silicone, urea and deionized water and stirring are mixed, add pymetrozine, aluminium-magnesium silicate, xanthans agitation cycle, speed of agitator 800-1900rpm, circulation timei 60-120min, after all materials mix, enter sand mill grinding, when material particular diameter reaches D (90)=3-5 μm, sampling detects, and qualifiedly can pack warehouse-in.
It is to be noted; the foregoing is only the preferred embodiment explaining the present invention; not attempt does any restriction in form to the present invention according to this; be with; all any modification or changes having the relevant the present invention that does under identical invention spirit, all must be included in the category that the invention is intended to protection.
Claims (10)
1. fatty acid methyl ester is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: described fatty acid methyl ester is used for substituting the high organic solvent of toxicity in traditional pesticidal preparations.
2. fatty acid methyl ester according to claim 1 is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: described fatty acid methyl ester is that raw material is produced with vegetable oil, described vegetable oil is the by product grease of soybean oil, corn oil, palm oil, rapeseed oil, cottonseed oil, peanut oil, sunflower seed wet goods vegetable oil, production vegetable oil, comprise acidification oil fatty acid, deodorizing distillate etc., the fatty acid methyl ester of production is for comprising C
6to C
22, the mixture of independent or multiple fatty acid methyl ester.
3. fatty acid methyl ester according to claim 1 and 2 is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: described fatty acid methyl ester comprise in methylated vegetable oils, methyl oleate and biodiesel one or more.
4. fatty acid methyl ester according to claim 3 is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: described pesticidal preparations comprises missible oil, dispersibles oil-suspending agent, aqueous emulsion, suspension emulsion, ultra low volume spraying agent and suspending agent.
5. fatty acid methyl ester according to claim 4 is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: in missible oil, required pesticide active ingredient, emulsifier, stabilizing agent and fatty acid methyl ester are carried out taking, stirring according to required ratio.
6. fatty acid methyl ester according to claim 4 is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: for dispersibling in oil-suspending agent, required pesticide active ingredient, emulsifier, dispersant, stabilizing agent, thickener and fatty acid methyl ester are uniformly mixed, with sand mill, mixture is ground again, when material particular diameter reaches D (90)=2-5 μm, sampling detects, and can be packaged as finished product after qualified.
7. fatty acid methyl ester according to claim 4 is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: in aqueous emulsion, required pesticide active ingredient fatty acid methyl ester is dissolved completely, drops into emulsifier, dispersant and stabilizing agent and mix as oil phase for subsequent use; Thickener, preservative, defoamer, antifreezing agent and deionized water are mixed as aqueous phase for subsequent use; Add in aqueous phase by slow for oil phase stream in a shear condition, shear and homogenize, when particle diameter is less than 1 μm, sampling detects, and can be packaged as finished product after qualified.
8. fatty acid methyl ester according to claim 4 is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: in suspension emulsion, by solid constituent in required pesticide active ingredient and the circulation of wetting agent, dispersant, stabilizing agent, preservative, defoamer, thickener, antifreezing agent and deionized water and stirring, to be mixed evenly after, sand mill is adopted to grind, when material particular diameter reaches D (90)=2-5 μm, sampling detects, qualified rear mutually for subsequent use as suspending agent; By liquid crude in required pesticide active ingredient or the former powder of low melting point, dissolve with fatty acid methyl ester, dissolve completely add emulsifier, stabilizing agent mixes rear for subsequent use as oil phase; Slow for oil phase stream is added suspending agent mutually in, shear evenly, sampling detects, and can be packaged as finished product after qualified;
For in ultra low volume spraying agent, required pesticide active ingredient, auxiliary agent and fatty acid methyl ester are carried out taking, stirring according to required ratio;
For in suspending agent, required pesticide active ingredient, emulsifier, dispersant, stabilizing agent, thickener, fatty acid methyl ester and deionized water are uniformly mixed, with sand mill, mixture is ground again, when material particular diameter reaches D (90)=2-5 μm, sampling detects, and can be packaged as finished product after qualified.
9. the fatty acid methyl ester according to claim 5,6,7 or 8, as the Application and Development of environmentally friendly solvent in pesticidal preparations, is characterized in that:
Described emulsifier is: one or more in the addition condensation thing of calcium dodecyl benzene sulfonate, styryl phenyl APEO, styrylphenol formaldehyde resin polyoxyethylene polyoxypropylene block polyether, fatty alcohol-polyoxyethylene ether, castor oil and oxirane, accounts for the 1-15% of total formulation weight amount;
Described stabilizing agent is: one or more in pH adjusting agent, ultraviolet absorber, deflocculant, accounts for the 0.1-10% of total formulation weight amount;
Described dispersant is: polycarboxylic acid salt, naphthalenesulfonate formaldehyde condensation compound, one or more in multi-styrene phenylate phosphate, lignosulfonates, accounts for the 1-10% of total formulation weight amount;
Described thickener is: one or more in aluminium-magnesium silicate, organobentonite, xanthans, carboxymethyl cellulose, white carbon, accounts for the 0-8% of total formulation weight amount;
Described preservative is: one or more in benzoic acid, sorbic acid, Kathon CG, formaldehyde, accounts for the 0.1-3% of total formulation weight amount;
Described defoamer is: one or more in organosiloxane, polyethers, higher alcohols, accounts for the 0.1-1% of total formulation weight amount;
Described antifreezing agent is: one or more in ethanol, ethylene glycol, propane diols, glycerine, urea, accounts for the 0-10% of total formulation weight amount;
Described wetting agent is: one or more in alkyl sulfate, sulfonate, fatty acid or fatty acid ester sulphate, polyoxyethylene aliphatic alcohol ether, accounts for the 1-5% of total formulation weight amount.
10. fatty acid methyl ester according to claim 4 is as the Application and Development of environmentally friendly solvent in pesticidal preparations, it is characterized in that: divide according to purposes, and described pesticidal preparations comprises weed killer herbicide, insecticide, bactericide and plant growth regulator.
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