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Dichlobenil water-dispersible granule and preparation method thereof

A technology of dichonil and dispersant, which is applied in the field of herbicide dichonil water-dispersible granules and its preparation, can solve the problems of no dichonil dosage form, etc., and achieve good adhesion, convenient use, and high suspension rate Effect

Inactive Publication Date: 2013-04-24
JIANGSU WEUNITE FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Currently no formulations of dichonil are found on the market

Method used

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  • Dichlobenil water-dispersible granule and preparation method thereof

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Effect test

Embodiment 1

[0017] A kind of dichonil water dispersible granule and preparation method thereof, it first prepares 4 kilograms of dichlornil technical material, 0.2 kilogram of ABSNa, 0.2 kilogram of phenethylphenol polyoxyethylene sodium sulfate, 0.1 kilogram of bentonite, 0.1 kilogram of sodium polyacrylate , 0.4 kg of white carbon black as raw material. Then add dichlornil, ABSNa, sodium phenylethylphenol polyoxyethylene sulfate, bentonite, sodium polyacrylate, and white carbon black into the mixer and mix them evenly, then put them into a jet mill to pulverize, and then mix them again. Secondary pulverization, spraying with water, extruding, granulating, and drying, can become dichonil water-dispersible granules.

Embodiment 2

[0019] A kind of dichonil water dispersible granule and preparation method thereof, it first prepares 4 kilograms of the original drug of dichlornil, 0.2 kilogram of 600# wetting agent, 0.2 kilogram of lignosulfonate, 0.1 kilogram of modified starch, 0.1 kilogram of modified PVA , 0.4 kg of light calcium as raw material. Then add the original drug of dichonil, 600# wetting agent, lignin sulfonate, modified starch, modified PVA, and light calcium into the mixer and mix evenly, then put it into the jet mill to pulverize, and then mix it for the second time. crushed for the first time, then sprayed with water, extruded, granulated, and dried to become dichonil water-dispersible granules.

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Abstract

A dichlobenil water-dispersible granule and a preparation method thereof. The dichlobenil water-dispersible granule is characterized by comprising the following components of, by weight: 95% of dichlobenil, 1-5% of a wetting and dispersing agent, 1-5% of a dispersing agent, 1-3% of a disintegrating agent, 1-2% of a binder, and 1-80% of a carrier. The preparation method comprises: first, according to the percentage by weight, fully mixing the wetting and dispersing agent, the dispersing agent, the disintegrating agent, the binder, the carrier, and dichlobenil original pesticide in a mixer; then placing the obtained mixture into a jet mill to pulverizing the mixture; and performing secondary mixing and second pulverizing, and spraying water, extruding for granulation and drying to obtain the dichlobenil water-dispersible granule. The dichlobenil water-dispersible granule of the present invention can be used for both pre-emergence treatment and foliage spray; is suitable for rice, corn, soybeans, kidney beans, cucumbers, onions, peppers, strawberries, lettuce, eggplants, turnips and other crops, and is also suitable for lawns and ornamental plants; and is mainly used for control of annual and perennial grass weeds.

Description

technical field [0001] The invention relates to a pesticide water-dispersible granule, in particular to a herbicide dichonil water-dispersible granule and a preparation method thereof. Background technique [0002] The chemical name of the compound dichonil is 2,6-dichlorobenzonitrile. [0003] Its structural formula is: [0004] [0005] Dichlorobenil English name: dichlorobenil. For selective herbicides. The pure product is white crystal. The melting point is 145-146°C. The vapor pressure is 0.67Pa (25°C). The solubility in water at 20°C is 18mg / L. Soluble in most organic solvents, stable to acid and heat. Rat acute oral LD503160mg / kg, rabbit acute percutaneous LD5011350mg / kg, fish toxicity: carp TLm (48h) is 17mg / L. From the reaction of 2,3-dichloronitrobenzene and copper cyanide to generate 2-chloro-6-7 Xiaonyl benzonitrile, and then made by reduction and diazotization. To control annual and perennial weeds in bud stage, the dosage is 2.5~10.0kg / ha. [0006]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/34A01N25/14A01P13/00
Inventor 蒙健袁欣
Owner JIANGSU WEUNITE FINE CHEM CO LTD
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