CN115735939A - Fenthion emulsion in water and preparation method thereof - Google Patents
Fenthion emulsion in water and preparation method thereof Download PDFInfo
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- CN115735939A CN115735939A CN202211474480.6A CN202211474480A CN115735939A CN 115735939 A CN115735939 A CN 115735939A CN 202211474480 A CN202211474480 A CN 202211474480A CN 115735939 A CN115735939 A CN 115735939A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses fenthion aqueous emulsion which comprises the following raw materials, by weight, 4-12 parts of fenthion, 1-2 parts of diethanolamine, 2.5-5 parts of dimethylbenzene, 2.5-4 parts of carbamate, 1.5-3 parts of polyisobutene amine, 3-5 parts of methyl tert-butyl ether, 1-2.5 parts of glycerol palm kernel fatty acid, 2-3 parts of gum arabic, 0.8-3 parts of polyvinyl alcohol, 2-5 parts of urea, 1-3 parts of ethylene glycol, 2.5-6 parts of propylene glycol, 1.4-2.5 parts of ammonium sulfate and 6-14 parts of deionized water. The invention is not easy to scatter, has little harm to human health by reducing drug effect, lightens the pollution to water quality, improves the safety to production, storage, transportation and users to a great extent, is not easy to volatilize integrally, is not easy to freeze, is convenient for long-term storage, and is safer and more environment-friendly.
Description
Technical Field
The invention relates to the technical field of emulsion in water, in particular to fenthion emulsion in water and a preparation method thereof.
Background
Fenthion, the chemical name of which is O, O-dimethyl-O- (4-methylthio-3-methylphenyl) thiophosphate, is an organic compound and has the chemical formula of C 10 H 15 O 3 PS 2 It is a broad-spectrum quick-acting long-acting pesticide, is effective for several pests, mainly possesses stomach toxicity action for contact killing, long residual action period and is less effective for mite, and is mainly used for controlling soybean pod borer, cotton pest and fruit tree pestPests of insects, vegetables and rice, and mosquito, fly, bed bug, lice and cockroach.
Fenthion is easily soluble in organic solvents such as spikenard oil, ethanol, toluene, linalool, acetone, chlorinated hydrocarbon, fatty oil and the like, and is hardly soluble in petroleum ether, and the dosage form used by fenthion as an insecticide at present mainly takes missible oil and powder as main components. The content of fenthion in the emulsifiable solution is 1-10%, the content of surfactant is 2-10%, and the rest is organic solvent, and its content is up to 80%. The organic solvent is not only highly volatile and flammable, but also wastes resources, pollutes the environment and is harmful to human health. The powder is easy to float, thereby reducing the drug effect, polluting the environment and simultaneously being harmful to the human health.
The existing fenthion emulsion in water is relatively complex in preparation process, and the prepared product is poor in stability, easy to volatilize, easy to freeze and short in storage period, so that the fenthion emulsion in water and the preparation method thereof are provided.
Disclosure of Invention
The invention adopts a modified technical scheme to solve the technical defects, and the fenthion aqueous emulsion comprises the following raw materials of, by weight, 4-12 parts of fenthion, 1-2 parts of diethanolamine, 2.5-5 parts of dimethylbenzene, 2.5-4 parts of carbamate, 1.5-3 parts of polyisobutene amine, 3-5 parts of methyl tert-butyl ether, 1-2.5 parts of glycerol palm kernel fatty acid, 2-3 parts of gum arabic, 0.8-3 parts of polyvinyl alcohol, 2-5 parts of urea, 1-3 parts of ethylene glycol, 2.5-6 parts of propylene glycol, 1.4-2.5 parts of ammonium sulfate and 6-14 parts of deionized water.
In a further preferred embodiment of the present invention, the composition further comprises the following raw materials and parts by weight, wherein the raw materials comprise 12 parts of fenthion, 2 parts of diethanolamine, 5 parts of xylene, 4 parts of carbamate, 3 parts of polyisobutylene amine, 5 parts of methyl tert-butyl ether, 2.5 parts of glycerol palm kernel fatty acid, 3 parts of gum arabic, 3 parts of polyvinyl alcohol, 5 parts of urea, 3 parts of ethylene glycol, 6 parts of propylene glycol, 2.5 parts of ammonium sulfate and 14 parts of deionized water.
As a further preferable mode of the present invention, the present invention further comprises the following raw materials and parts by weight, wherein 4 parts of fenthion, 1 part of diethanolamine, 2.5 parts of xylene, 2.5 parts of carbamate, 1.5 parts of polyisobutylene amine, 3 parts of methyl tert-butyl ether, 1 part of glycerol palm kernel fatty acid, 2 parts of gum arabic, 0.8 part of polyvinyl alcohol, 2 parts of urea, 1 part of ethylene glycol, 2.5 parts of propylene glycol, 1.4 parts of ammonium sulfate, and 6 parts of deionized water.
In a further preferred embodiment of the present invention, the manufacturing process comprises the following steps:
s1, firstly, placing fenthion, diethanol amine, xylene, carbamate, polyisobutylene amine and methyl tert-butyl ether in a stirring container for circulating stirring, then fully soaking for 1-2 hours, mixing and stirring, controlling the temperature to 52 ℃ and controlling the time to be within 2 hours;
s2, blending and stirring the glycerol palm kernel fatty acid, the gum arabic, the polyvinyl alcohol, the urea and the ethylene glycol according to a ratio, and adding half amount of deionized water;
s3, mixing and stirring the solution, heating to 80-95 ℃, stirring for 2-4h, adding propylene glycol, ammonium sulfate and half amount of deionized water, stirring for 1-3h, standing after uniform stirring, and then shearing to prepare the aqueous emulsion.
As a further preferable mode of the invention, in the step S1, after the solution is mixed, the pH value is controlled to be 6.5-6.8, chlorine gas is continuously injected, the input of the transmission speed of 35ml/min is kept, and the duration is 15min.
As a further preferable mode of the invention, in the step S2, after deionized water is added, the mixture is stirred at the rotating speed of 630-750r/min for 15-20 minutes and then cooled, and the standing time lasts for 1.5-3 hours.
As a further preferred mode of the invention, the emulsion in water is prepared by shearing: slowly adding water and glycerol under stirring in a shear emulsifying machine with rotation speed of 3000-20000 r/min.
The invention has the following beneficial effects: the invention is not easy to drift, reduces the harm of drug effect to human health, lightens the pollution to water quality, improves the safety to production, storage, transportation and users to a great extent, is not easy to volatilize as a whole, is not easy to freeze, is convenient for long-term storage, and is safer and more environment-friendly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: 4-12 parts of fenthion, 1-2 parts of diethanolamine, 2.5-5 parts of dimethylbenzene, 2.5-4 parts of carbamate, 1.5-3 parts of polyisobutylene amine, 3-5 parts of methyl tert-butyl ether, 1-2.5 parts of glycerol palm kernel fatty acid, 2-3 parts of gum arabic, 0.8-3 parts of polyvinyl alcohol, 2-5 parts of urea, 1-3 parts of ethylene glycol, 2.5-6 parts of propylene glycol, 1.4-2.5 parts of ammonium sulfate and 6-14 parts of deionized water.
The environment-friendly antirust fluid also comprises the following raw materials and parts by weight, wherein 12 parts of fenthion, 2 parts of diethanolamine, 5 parts of xylene, 4 parts of carbamate, 3 parts of polyisobutylene amine, 5 parts of methyl tert-butyl ether, 2.5 parts of glycerol palm kernel fatty acid, 3 parts of gum arabic, 3 parts of polyvinyl alcohol, 5 parts of urea, 3 parts of ethylene glycol, 6 parts of propylene glycol, 2.5 parts of ammonium sulfate and 14 parts of deionized water.
The composite material also comprises the following raw materials and parts by weight, wherein 4 parts of fenthion, 1 part of diethanolamine, 2.5 parts of xylene, 2.5 parts of carbamate, 1.5 parts of polyisobutene amine, 3 parts of methyl tert-butyl ether, 1 part of glycerol palm kernel fatty acid, 2 parts of gum arabic, 0.8 part of polyvinyl alcohol, 2 parts of urea, 1 part of ethylene glycol, 2.5 parts of propylene glycol, 1.4 parts of ammonium sulfate and 6 parts of deionized water.
The manufacturing process comprises the following steps:
s1, firstly, placing fenthion, diethanol amine, xylene, carbamate, polyisobutylene amine and methyl tert-butyl ether in a stirring container for circulating stirring, then fully soaking for 1-2 hours, mixing and stirring, controlling the temperature to 52 ℃ and controlling the time to be within 2 hours;
s2, blending and stirring the glycerol palm kernel fatty acid, the gum arabic, the polyvinyl alcohol, the urea and the ethylene glycol according to a ratio, and adding half amount of deionized water;
s3, mixing and stirring the solution, heating to 80-95 ℃, stirring for 2-4h, adding propylene glycol, ammonium sulfate and half amount of deionized water, stirring for 1-3h, standing after uniform stirring, and then shearing to prepare the aqueous emulsion.
In the step S1, after the solution is mixed, the PH value is controlled to be 6.5-6.8, chlorine is continuously injected, the input is kept at the transmission speed of 35ml/min, and the duration is 15min.
And in the step S2, after deionized water is added, stirring at the rotating speed of 630-750r/min for 15-20 minutes, cooling, and standing for 1.5-3 hours.
Shearing to prepare the aqueous emulsion: slowly adding water and glycerol under stirring in a shear emulsifying machine with rotation speed of 3000-20000 r/min.
Example 1
The fenthion aqueous emulsion comprises 12g of fenthion, 2g of diethanolamine, 5g of xylene, 4g of carbamate, 3g of polyisobutene amine, 5g of methyl tert-butyl ether, 2.5g of glycerol palm kernel fatty acid, 3g of gum arabic, 3g of polyvinyl alcohol, 5g of urea, 3g of ethylene glycol, 6g of propylene glycol, 2.5g of ammonium sulfate and 14g of deionized water.
Firstly, putting fenthion, diethanol amine, xylene, carbamate, polyisobutene amine and methyl tert-butyl ether in a stirring container for circular stirring, then fully soaking for 2 hours, then mixing and stirring, controlling the temperature to 52 ℃, controlling the time to be within 2 hours, controlling the pH value to be 6.8 after the solution is mixed, continuously injecting chlorine, keeping the transmission speed of 35ml/min for input, and continuing for 15min; blending and stirring glycerol palm kernel fatty acid, gum arabic, polyvinyl alcohol, urea and ethylene glycol according to a proportion, adding half amount of deionized water, stirring at a rotating speed of 750r/min for 20 minutes in the step S2, and cooling, wherein the standing time lasts for 3 hours; mixing and stirring the solution, heating to 95 ℃, stirring for 4 hours, adding propylene glycol, ammonium sulfate and half amount of deionized water, stirring for 3 hours, standing after uniformly stirring, then shearing to prepare the aqueous emulsion, and shearing to prepare the aqueous emulsion: water and glycerol were slowly added with stirring in a shear emulsifier at 20000 r/min.
Example 2
The fenthion aqueous emulsion comprises 4g of fenthion, 1g of diethanolamine, 2.5g of xylene, 2.5g of carbamate, 1.5g of polyisobutene amine, 3g of methyl tert-butyl ether, 1g of glycerol palm kernel fatty acid, 2g of gum arabic, 0.8g of polyvinyl alcohol, 2g of urea, 1g of ethylene glycol, 2.5g of propylene glycol, 1.4g of ammonium sulfate and 6g of deionized water.
Firstly, putting fenthion, diethanol amine, xylene, carbamate, polyisobutene amine and methyl tert-butyl ether in a stirring container for circular stirring, then fully soaking for 1-2 hours, then mixing and stirring, controlling the temperature to 52 ℃, controlling the time to be within 2 hours, controlling the pH value to be 6.5 after the solution is mixed, continuously injecting chlorine, keeping the transmission speed of 35ml/min for input, and continuing for 15min; blending and stirring glycerol palm kernel fatty acid, gum arabic, polyvinyl alcohol, urea and ethylene glycol according to a ratio, adding half amount of deionized water, in the step S2, adding deionized water, stirring at a rotating speed of 630r/min for 15 minutes, cooling, and keeping standing for 1.5 hours; mixing and stirring the solution, heating to 80 ℃, stirring for 2 hours, adding propylene glycol, ammonium sulfate and half amount of deionized water, stirring for 1 hour, standing after uniformly stirring, then shearing to prepare the aqueous emulsion, and shearing to prepare the aqueous emulsion: water and glycerol were slowly added with stirring in a shear emulsifier at 3000 r/min.
| Thermal stability | Stability of refrigeration | Volatility (0-50 ℃ C.) | |
| Example one | Long term storage at less than 58 deg.C | Higher than 4 deg.C below zero | Without volatilization |
| Example two | Long term storage at less than 57 deg.C | Higher than 4 deg.C below zero | Without volatilization |
。
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A fenthion aqueous emulsion is characterized in that: the composite material comprises, by weight, 4-12 parts of fenthion, 1-2 parts of diethanolamine, 2.5-5 parts of xylene, 2.5-4 parts of carbamate, 1.5-3 parts of polyisobutene amine, 3-5 parts of methyl tert-butyl ether, 1-2.5 parts of glycerol palm kernel fatty acid, 2-3 parts of gum arabic, 0.8-3 parts of polyvinyl alcohol, 2-5 parts of urea, 1-3 parts of ethylene glycol, 2.5-6 parts of propylene glycol, 1.4-2.5 parts of ammonium sulfate and 6-14 parts of deionized water.
2. The fenthion aqueous emulsion is characterized by further comprising the following raw materials in parts by weight, wherein the raw materials comprise 12 parts of fenthion, 2 parts of diethanolamine, 5 parts of xylene, 4 parts of carbamate, 3 parts of polyisobutylene amine, 5 parts of methyl tert-butyl ether, 2.5 parts of glycerol palm kernel fatty acid, 3 parts of gum arabic, 3 parts of polyvinyl alcohol, 5 parts of urea, 3 parts of ethylene glycol, 6 parts of propylene glycol, 2.5 parts of ammonium sulfate and 14 parts of deionized water.
3. The fenthion aqueous emulsion according to claim 1 is characterized by further comprising the following raw materials and parts by weight, wherein 4 parts of fenthion, 1 part of diethanolamine, 2.5 parts of xylene, 2.5 parts of carbamate, 1.5 parts of polyisobutylene amine, 3 parts of methyl tert-butyl ether, 1 part of glycerol palm kernel fatty acid, 2 parts of gum arabic, 0.8 part of polyvinyl alcohol, 2 parts of urea, 1 part of ethylene glycol, 2.5 parts of propylene glycol, 1.4 parts of ammonium sulfate and 6 parts of deionized water.
4. The preparation method of fenthion aqueous emulsion according to claim 1, characterized in that the preparation process comprises the following steps:
s1, firstly, placing fenthion, diethanol amine, xylene, carbamate, polyisobutylene amine and methyl tert-butyl ether in a stirring container for circulating stirring, then fully soaking for 1-2 hours, mixing and stirring, controlling the temperature to 52 ℃ and controlling the time to be within 2 hours;
s2, blending and stirring the glycerol palm kernel fatty acid, the gum arabic, the polyvinyl alcohol, the urea and the ethylene glycol according to a ratio, and adding half amount of deionized water;
s3, mixing and stirring the solution, heating to 80-95 ℃, stirring for 2-4h, adding propylene glycol, ammonium sulfate and half amount of deionized water, stirring for 1-3h, standing after uniform stirring, and then shearing to prepare the aqueous emulsion.
5. The method for preparing fenthion aqueous emulsion as claimed in claim 4, wherein in step S1, after the solution is mixed, the pH value is controlled between 6.5 and 6.8, and chlorine is continuously injected, and the input of the transmission speed of 35ml/min is maintained for 15min.
6. The preparation method of fenthion aqueous emulsion as claimed in claim 4, characterized in that, in step S2, after adding deionized water, the mixture is stirred at a rotation speed of 630-750r/min for 15-20 minutes to start cooling, and the standing time lasts for 1.5-3 hours.
7. The preparation method of fenthion aqueous emulsion as claimed in claim 4, characterized in that in step S3, the aqueous emulsion is prepared by shearing: slowly adding water and glycerol under stirring in a shearing emulsifying machine with rotation speed of 3000-20000 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211474480.6A CN115735939A (en) | 2022-11-22 | 2022-11-22 | Fenthion emulsion in water and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211474480.6A CN115735939A (en) | 2022-11-22 | 2022-11-22 | Fenthion emulsion in water and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301996A (en) * | 2011-09-20 | 2012-01-04 | 汕头市大千高新科技研究中心有限公司 | Water emulsion pesticide system and preparation method thereof |
| CN108967439A (en) * | 2018-09-14 | 2018-12-11 | 柳州市万友家庭卫生害虫防治所 | Bug killing water emulsion and preparation method thereof |
| CN109042635A (en) * | 2018-09-14 | 2018-12-21 | 柳州市万友家庭卫生害虫防治所 | Entex aqueous emulsion and the preparation method and application thereof |
| CN109197891A (en) * | 2018-09-14 | 2019-01-15 | 柳州市万友家庭卫生害虫防治所 | Kill bedbug medicament and preparation method thereof |
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2022
- 2022-11-22 CN CN202211474480.6A patent/CN115735939A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301996A (en) * | 2011-09-20 | 2012-01-04 | 汕头市大千高新科技研究中心有限公司 | Water emulsion pesticide system and preparation method thereof |
| CN108967439A (en) * | 2018-09-14 | 2018-12-11 | 柳州市万友家庭卫生害虫防治所 | Bug killing water emulsion and preparation method thereof |
| CN109042635A (en) * | 2018-09-14 | 2018-12-21 | 柳州市万友家庭卫生害虫防治所 | Entex aqueous emulsion and the preparation method and application thereof |
| CN109197891A (en) * | 2018-09-14 | 2019-01-15 | 柳州市万友家庭卫生害虫防治所 | Kill bedbug medicament and preparation method thereof |
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