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Diflubenzuron water dispersion granule and preparation thereof

A technology of dispersing granules and dichlorfenuron is applied in the fields of botanical equipment and methods, arthropodicides, biocides, etc., which can solve the problems of low content of active ingredients, easy environmental pollution, and inconvenient use.

Inactive Publication Date: 2008-09-17
SHENZHEN LANGTAI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the diflubenzuron produced in China is generally processed into a suspending agent, and the active ingredient content is 20-25%, such as the 25% diflubenzuron suspending concentrate produced by Anyang Lin Pharmaceutical Factory in Henan Province. Due to the use of a large number of auxiliary materials and the characteristics of the liquid itself , there are disadvantages such as low active ingredient content, poor stability, easy to pollute the environment, endanger human health, high cost, storage and transportation, and inconvenient use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1, produces 5% diflubenzuron water-dispersible granules

[0038] Calculated according to the ratio of diflubenzuron 5% (100%) and alkylphenol polyoxyethylene sulfate 8%, alkyl sulfonate 12%, urea 15%, CMC 1%, and kaolin to supplement 100%. The amount of each component is weighed, and the components other than the binder are mixed, and the mother powder is prepared by jet milling, and the mother powder is mixed with a 3% aqueous solution of the binder evenly, and then the rotary disc granulation is carried out. Drying, sieving, analysis and inspection put into storage to obtain 5% diflubenzuron water-dispersible granules, with a single yield of 69.4%. The remaining materials can be recycled, and the cumulative yield can reach more than 95%.

Embodiment 2

[0039] Embodiment 2, produce 25% diflubenzuron water-dispersible granules

[0040] According to diflubenzuron original drug 25% (100%) and alkyl naphthalene sulfonate 8%, fatty alcohol polyoxyethylene ether sodium sulfate 10%, ammonium sulfate 8%, polyvinyl alcohol 0.8%, bentonite supplement 100% of the formulation Calculate the amount of each component and weigh it, mix the components except the adhesive, and prepare the mother powder through jet milling, mix the mother powder and 3% adhesive aqueous solution evenly, and then flow Chemical bed granulation, drying, sieving, analysis and inspection put into storage to obtain 25% diflubenzuron water-dispersible granules, with a single yield of 70.6%, and the remaining materials can be recycled, and the cumulative yield can reach more than 95%.

Embodiment 3

[0041] Embodiment 3, produce 80% diflubenzuron water-dispersible granules

[0042] According to the proportion of diflubenzuron 80% (100%) and alkylnaphthalene formaldehyde condensate 3%, alkyl sodium sulfate 8%, polyvinylpyrrolidone 2%, gum arabic 0.5%, and white carbon black make up 100% of the proportioning ratio Calculate and weigh the amount of each component, mix the components except the adhesive, and prepare the mother powder through jet milling, mix the mother powder and 3% adhesive aqueous solution evenly, and then extrude Granulation, drying, sieving, analysis, inspection and storage to obtain 80% diflubenzuron water-dispersible granules with a yield of 95.7%.

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PUM

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Abstract

The invention discloses a diflubenzuron water dispersible granule and the preparation method of the diflubenzuron water dispersible granule; the invention is characterized in that, 5% to 90% of diflubenzuron by weight is added to 10% to 95% accessories; after well mixing, ultrafine grinding, granulation and drying, regular or irregular water dispersible granule is obtained. The granule has the advantages that, the drawbacks of diflubenzuron suspension agent are overcome; during processing and using process, consumption cost of farmers and environmental pollution are reduced; the invention has the advantages of high content of active components, fast disintegration speed, good dispersion property, high heat storage stability and other advantages; during usage, insecticidal effect is good and safety is high.

Description

technical field [0001] The invention relates to a pesticide water-dispersible granule and a preparation method thereof, specifically diflubenzuron water-dispersible granule. Background technique [0002] The object of the present invention is to provide a high-efficiency water-dispersible granule for effectively killing pests in crops. Another object of the present invention is to provide a preparation method of the above-mentioned diflubenzuron water-dispersible granule. [0003] Diflubenzuron is a specific insecticide, which belongs to high-efficiency, low-toxicity, low-residue and pollution-free pesticides. The main feature is: by inhibiting the synthesis of chitin, it interferes with the formation of cuticle, so insects will be sensitive to diflubenzuron at various stages of cuticle formation, also known as juvenile hormone, and has the characteristics of long-lasting effect , usually up to 50 days or more. It meets the requirements of modern agriculture for pesticide...

Claims

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Application Information

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IPC IPC(8): A01N25/12A01N47/34A01P7/00
Inventor 张荣胜马冬
Owner SHENZHEN LANGTAI BIOTECH
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