CN113841704A - Nanometer dry suspending agent of pymetrozine and dinotefuran and preparation method thereof - Google Patents
Nanometer dry suspending agent of pymetrozine and dinotefuran and preparation method thereof Download PDFInfo
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- CN113841704A CN113841704A CN202111267207.1A CN202111267207A CN113841704A CN 113841704 A CN113841704 A CN 113841704A CN 202111267207 A CN202111267207 A CN 202111267207A CN 113841704 A CN113841704 A CN 113841704A
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- pymetrozine
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/707—1,2,3- or 1,2,4-triazines; Hydrogenated 1,2,3- or 1,2,4-triazines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N51/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring
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- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a nano dry suspending agent of pymetrozine and dinotefuran and a preparation method thereof, wherein the nano dry suspending agent comprises pymetrozine and dinotefuran, and the nano dry suspending agent comprises the following compositions: 40-50% of pymetrozine, 20-30% of dinotefuran, 10-15% of a dispersant, 3.6-8% of a wetting agent, 2-4% of a stabilizer, 92% of a filler and 8% of deionized water. The pymetrozine and dinotefuran are proportioned according to different proportions, other reagents are added according to different proportions, and the prepared nano dry suspending agent is automatically and rapidly dispersed in water according to the added dispersing agent, wetting agent, defoaming agent, filler and the like, has no dead particles and no nozzle blockage, is very suitable for flying prevention, has uniform product particles, has higher strength than high-tower spray granulation, good wear resistance, strong wettability and basically no dust, and is very suitable for the production of dry suspending agents of low-melting-point and high-viscosity materials by equipment and process.
Description
Technical Field
The invention relates to the field, in particular to a nano dry suspending agent of pymetrozine and dinotefuran and a preparation method thereof.
Background
The dry suspending agent is also called water dispersible granule, is a new pesticide formulation developed successfully in the 80 th of the 20 th century and a preparation processing technology, is a solid preparation which can be dispersed in water, does not use a solvent, has certain strength and is easy to disintegrate, has high suspension rate after dispersion, does not generate dust and is safe to use, and the processed granules are easy to flow freely.
In the prior art, after the nano dry suspending agent is put into water, the nano dry suspending agent is slow in dispersion, particles are dead, a sprayer is easy to spray, product particles are not uniform, the strength is lower than that of high-tower spray granulation, and the production is difficult.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a nano dry suspending agent of pymetrozine and dinotefuran and a preparation method thereof, which can effectively solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a nanometer dry suspending agent of pymetrozine and dinotefuran and a preparation method thereof are disclosed, wherein the nanometer dry suspending agent comprises pymetrozine and dinotefuran, and the nanometer dry suspending agent comprises the following compositions: 40-50% of pymetrozine, 20-30% of dinotefuran, 10-15% of a dispersant, 3.6-8% of a wetting agent, 2-4% of a stabilizer, 92% of a filler and 8% of deionized water.
Preferably, the nano dry suspending agent of pymetrozine and dinotefuran comprises the following compositions: 40% of pymetrozine, 20% of dinotefuran, 10% of a dispersing agent, 3.6% of a wetting agent, 2% of a stabilizing agent, 92% of a filler and 8% of deionized water.
Preferably, the nano dry suspending agent of pymetrozine and dinotefuran comprises the following compositions: 30% of pymetrozine, 25% of dinotefuran, 13% of a dispersing agent, 6% of a wetting agent, 3% of a stabilizing agent, 92% of a filler and 8% of deionized water.
Preferably, the nano dry suspending agent of pymetrozine and dinotefuran comprises the following compositions: 42% of pymetrozine, 23% of dinotefuran, 12% of a dispersing agent, 4% of a wetting agent, 2% of a stabilizing agent, 92% of a filler and 8% of deionized water.
Preferably, the preparation method of the nano dry suspending agent of pymetrozine and dinotefuran comprises the following steps:
step one, batching: mixing pymetrozine and dinotefuran according to different proportions; then adding the mixture into deionized water at 35 ℃, adding other dispersing agents, wetting agents, stabilizing agents, defoaming agents and fillers, adding the mixture into a reaction kettle, and quickly shearing, mixing and uniformly dispersing;
step two, sanding: adopting two-stage or three-stage sand mills in series connection to sand the sheared material, and controlling the particle size of the particles to be qualified below 10 um;
step three, granulating and drying, pumping the sanded slurry into a metering tank, and starting a continuous fluidized bed for granulating and drying to obtain a product;
step four, product inspection, wherein the product is inspected according to enterprise standards;
and fifthly, discharging after the materials are qualified, and packaging.
Preferably, the dispersant is composed of sodium lignin salt, Shandong Shengquan, the wetting agent is DF2238, and the filler is potassium sulfate.
Preferably, the preparation method of the nano dry suspending agent of pymetrozine and dinotefuran comprises the following steps: the air inlet temperature is 80 ℃; the temperature of a material layer is 42-45 ℃; the air pressure of the spray gun is 0.29-0.3 MPa; the frequency of the air inlet fan is 40 HZ; the frequency of the induced draft fan is 30 HZ; the rotating speed of the feeding pump is 120-130 rpm, and the frequency of the discharging valve is 4 HZ.
Compared with the prior art, the invention has the beneficial effects that:
the pymetrozine and dinotefuran are proportioned according to different proportions, other reagents are added according to different proportions, and the prepared nano dry suspending agent is automatically and rapidly dispersed in water according to the added dispersing agent, wetting agent, defoaming agent, filler and the like, has no dead particles and no nozzle blockage, is very suitable for flying prevention, has uniform product particles, has higher strength than high-tower spray granulation, good wear resistance, strong wettability and basically no dust, and is very suitable for the production of dry suspending agents of low-melting-point and high-viscosity materials by equipment and process.
Drawings
FIG. 1 is a schematic diagram of a production process of a nano dry suspending agent of pymetrozine and dinotefuran;
FIG. 2 is a schematic diagram of the components of a nanometer dry suspending agent of pymetrozine and dinotefuran.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
Example 1
Step one, batching: mixing the materials according to the proportion of 40 percent of pymetrozine and 20 percent of dinotefuran; then adding the mixture into deionized water at 35 ℃, adding 10% of dispersing agent, 3.6% of wetting agent, 2% of stabilizing agent and defoaming agent, adding the mixture into a reaction kettle after the mixture is supplemented to 92% by filling materials, and quickly shearing, mixing and dispersing uniformly;
step two, sanding: adopting two-stage or three-stage sand mills in series connection to sand the sheared material, and controlling the particle size of the particles to be qualified below 10 um;
step three, granulating and drying, pumping the sanded slurry into a metering tank, and starting a continuous fluidized bed for granulating and drying to obtain a product;
step four, product inspection, wherein the product is inspected according to enterprise standards;
and fifthly, discharging after the materials are qualified, and packaging.
Example 2
Preparing materials: mixing 30% of pymetrozine and 25% of dinotefuran; then adding the mixture into deionized water at 35 ℃, adding 13 percent of dispersing agent, 6 percent of wetting agent, 3 percent of stabilizing agent and defoaming agent, adding the mixture into a reaction kettle after the mixture is filled to 92 percent through filling, and quickly shearing, mixing and dispersing uniformly;
step two, sanding: adopting two-stage or three-stage sand mills in series connection to sand the sheared material, and controlling the particle size of the particles to be qualified below 10 um;
step three, granulating and drying, pumping the sanded slurry into a metering tank, and starting a continuous fluidized bed for granulating and drying to obtain a product;
step four, product inspection, wherein the product is inspected according to enterprise standards;
and fifthly, discharging after the materials are qualified, and packaging.
Example 3
Preparing materials: mixing 42% of pymetrozine and 23% of dinotefuran; then adding the mixture into deionized water at 35 ℃, adding 12% of dispersing agent, 4% of wetting agent, 2% of stabilizing agent and defoaming agent, adding the mixture into a reaction kettle after the mixture is filled to 92% by filling materials, and quickly shearing, mixing and dispersing uniformly;
step two, sanding: adopting two-stage or three-stage sand mills in series connection to sand the sheared material, and controlling the particle size of the particles to be qualified below 10 um;
step three, granulating and drying, pumping the sanded slurry into a metering tank, and starting a continuous fluidized bed for granulating and drying to obtain a product;
step four, product inspection, wherein the product is inspected according to enterprise standards;
and fifthly, discharging after the materials are qualified, and packaging.
The comparison shows that the effect of the preparation of the example 1 is best, the product of the preparation is matched with the ratio of 40% of pymetrozine and 20% of dinotefuran, the insecticidal effect is best, the insecticidal spectrum is wide, the lasting period is more than 20 days, the product is automatically and rapidly dispersed after entering water, no dead particles exist, a spray head is not blocked, the product is very suitable for flying prevention, the particles are uniform, the strength is higher than that of high-tower spray granulation, the wear resistance is good, the wettability is strong, the equipment and the process are very suitable for producing the dry suspending agent of low-melting-point and high-viscosity materials, and the product is a domestic first set of special equipment.
The prepared product contains 40.5% of pymetrozine, 20.5% of dinotefuran, more than or equal to 99.2% of pymetrozine suspension rate, more than or equal to 99.8% of dinotefuran suspension rate, less than or equal to 7.6% of water, 7.2% of pH value, less than or equal to 21s of wetting time, more than or equal to 98% of dispersibility, less than or equal to 45ml of lasting foamability (after 1 min), more than or equal to 93% of wear resistance, less than or equal to 2mg of dust, more than or equal to 99.3% of wet sieve test (passing 75 mu m test sieve), and qualified heat storage stability of 54 +/-2C for 14 days.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A nanometer dry suspending agent of pymetrozine and dinotefuran is characterized by comprising pymetrozine and dinotefuran, and comprises the following compositions: 40-50% of pymetrozine, 20-30% of dinotefuran, 10-15% of a dispersant, 3.6-8% of a wetting agent, 2-4% of a stabilizer, 92% of a filler and 8% of deionized water.
2. A nanometer dry suspending agent of pymetrozine and dinotefuran is characterized by comprising the following compositions: 40% of pymetrozine, 20% of dinotefuran, 10% of a dispersing agent, 3.6% of a wetting agent, 2% of a stabilizing agent, 92% of a filler and 8% of deionized water.
3. A nanometer dry suspending agent of pymetrozine and dinotefuran is characterized by comprising the following compositions: 30% of pymetrozine, 25% of dinotefuran, 13% of a dispersing agent, 6% of a wetting agent, 3% of a stabilizing agent, 92% of a filler and 8% of deionized water.
4. A nanometer dry suspending agent of pymetrozine and dinotefuran is characterized by comprising the following compositions: 42% of pymetrozine, 23% of dinotefuran, 12% of a dispersing agent, 4% of a wetting agent, 2% of a stabilizing agent, 92% of a filler and 8% of deionized water.
5. The preparation method of the nano dry suspending agent of pymetrozine and dinotefuran according to any one of claims 1-4 comprises the following steps:
step one, batching: mixing pymetrozine and dinotefuran according to different proportions; then adding the mixture into deionized water at the temperature of 30-35 ℃, adding other dispersing agents, wetting agents, stabilizing agents, defoaming agents and fillers, adding the mixture into a reaction kettle, and quickly shearing, mixing and uniformly dispersing;
step two, sanding: adopting two-stage or three-stage sand mills in series connection to sand the sheared material, and controlling the particle size of the particles to be qualified below 10 um;
step three, granulating and drying, pumping the sanded slurry into a metering tank, and starting a continuous fluidized bed for granulating and drying to obtain a product;
step four, product inspection, wherein the product is inspected according to enterprise standards;
and fifthly, discharging after the materials are qualified, and packaging.
6. The nano dry suspending agent of pymetrozine and dinotefuran of claim 1, wherein the dispersant is produced by sodium lignin salt and Shandong Shengquan, the wetting agent is SP-DF2238 and produced by Jiangsu engine chemical industry, and the filler is potassium sulfate.
7. The preparation method of the nano dry suspending agent of pymetrozine and dinotefuran according to claim 5, wherein the preparation method of the nano dry suspending agent of pymetrozine and dinotefuran comprises a continuous fluidized bed control process: the air inlet temperature is 80 ℃; the temperature of a material layer is 42-45 ℃; the air pressure of the spray gun is 0.29-0.3 MPa; the frequency of the air inlet fan is 40 HZ; the frequency of the induced draft fan is 30 HZ; the rotating speed of the feeding pump is 120-130 rpm, and the frequency of the discharging valve is 4 HZ.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111267207.1A CN113841704A (en) | 2021-10-28 | 2021-10-28 | Nanometer dry suspending agent of pymetrozine and dinotefuran and preparation method thereof |
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| CN202111267207.1A CN113841704A (en) | 2021-10-28 | 2021-10-28 | Nanometer dry suspending agent of pymetrozine and dinotefuran and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106172385A (en) * | 2016-07-01 | 2016-12-07 | 深圳诺普信农化股份有限公司 | Pesticide dry suspending agent and preparation and application thereof |
| CN109730060A (en) * | 2019-01-21 | 2019-05-10 | 深圳诺普信农化股份有限公司 | A kind of preparation method of pesticide dry suspending agent |
| CN110250197A (en) * | 2019-06-25 | 2019-09-20 | 青岛润农化工有限公司 | A kind of Pesticidal combination and its application of dinotefuran and Biphenthrin |
| CN113424832A (en) * | 2021-07-02 | 2021-09-24 | 中化化工科学技术研究总院有限公司 | Pymetrozine and dinotefuran dry suspending agent and preparation method thereof |
-
2021
- 2021-10-28 CN CN202111267207.1A patent/CN113841704A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106172385A (en) * | 2016-07-01 | 2016-12-07 | 深圳诺普信农化股份有限公司 | Pesticide dry suspending agent and preparation and application thereof |
| CN109730060A (en) * | 2019-01-21 | 2019-05-10 | 深圳诺普信农化股份有限公司 | A kind of preparation method of pesticide dry suspending agent |
| CN110250197A (en) * | 2019-06-25 | 2019-09-20 | 青岛润农化工有限公司 | A kind of Pesticidal combination and its application of dinotefuran and Biphenthrin |
| CN113424832A (en) * | 2021-07-02 | 2021-09-24 | 中化化工科学技术研究总院有限公司 | Pymetrozine and dinotefuran dry suspending agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 江苏擎宇化工科技有限公司: "擎宇化工：专注绿色助剂和精准服务 寻求更广泛的国际合作", 《世界农化网》, 29 April 2021 (2021-04-29), pages 1 - 6 * |
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