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A kind of water dispersible granules of diazolam and preparation method thereof

A technology of diquat and dispersant, which is applied in the field of herbicide diquat water-dispersible granule and its preparation, can solve the problems such as no diquat dosage form has been found, and achieve good dispersibility, good stability and convenient use Effect

Inactive Publication Date: 2011-12-07
JIANGSU WEUNITE FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Currently no formulations of Diquat are found on the market

Method used

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  • A kind of water dispersible granules of diazolam and preparation method thereof

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Effect test

Embodiment 1

[0018] A water-dispersible granule of diquat and its preparation method, it first prepares 4 kilograms of the technical material of diquat, 0.2 kilogram of ABSNa, 0.2 kilogram of phenethylphenol polyoxyethylene sodium sulfate, 0.1 kilogram of bentonite, and 0.1 kilogram of sodium polyacrylate , 0.4 kg of white carbon black as raw material. Then add the original drug of Diquat, ABSNa, sodium phenylethylphenol polyoxyethylene sulfate, bentonite, sodium polyacrylate, and white carbon black into the mixer and mix evenly, then put it into the jet mill to pulverize, and then mix it again. Secondary pulverization, spraying with water, extruding, granulating and drying, can become diquat dispersible granules.

Embodiment 2

[0020] A water-dispersible granule of diquat and its preparation method, which first prepares 4 kg of diquat technical, 0.2 kg of 600# wetting agent, 0.2 kg of lignosulfonate, 0.1 kg of modified starch, and 0.1 kg of modified PVA , 0.4 kg of light calcium as raw material. Then add the original drug of Diquat, 600# wetting agent, lignosulfonate, 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 diquat dispersible granules.

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Abstract

A water dispersible granule of diquat and a preparation method thereof, characterized in that it contains 1-95% of diquat, 1-5% of wetting and dispersing agent, 1-5% of dispersant, and 1-5% of disintegrating agent according to the weight percentages. 3%, binder 1-2%, carrier 1-80%. First of all, the auxiliary, filler and diazoline original drug are fully mixed in a mixer according to a certain percentage by weight, and then put into a jet mill for pulverization, and then mixed for a second time, and then pulverized for a second time, and then sprayed with water, squeezed, and granulated. , Dried to become diazoline water dispersible granules. The water dispersible granules of diazoline of the present invention can be used for pre-emergence treatment and also can be used for stem and leaf spraying. It is suitable for crops such as corn, soybean, kidney bean, cucumber, onion, pepper, strawberry, lettuce, eggplant, turnip, etc. It is also suitable for lawn and ornamental plants. Mainly used to control annual grass weeds and certain broad-leaved weeds, such as foxtail, crabgrass, broccoli, purslane, chickweed, dodder, etc.

Description

technical field [0001] The invention relates to a pesticide water-dispersible granule, in particular to a herbicide diquathin water-dispersible granule and a preparation method thereof. Background technique [0002] The chemical name of the compound diquat is 2,3,5,6-dimethyl tetrachloroterephthalate. [0003] Its structural formula is: [0004] [0005] Diquat is abbreviated as DCPA, and the common name is Chlorthal-dimethyl; the trade name is methyl chlorophthalate, Dacthal or Fatal, etc.; the English name is Dimethyl 2, 3, 5, 6-tetrachloro-l, 4-phthalate; the chemical name is Dimethyl 2,3,5,6-tetrachloroterephthalate; CAs: 1861-32-l; pure product is colorless crystal, melting point is 154-156°C, insoluble in water, soluble in acetone, benzene, Organic solvents such as toluene and xylene. Pure products and preparations are stable and non-corrosive. [0006] Diquat is a benzoic acid herbicide with systemic conduction properties. It can be used not only for pre-emerge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/10A01N25/12A01P13/00
Inventor 蒙健袁欣
Owner JIANGSU WEUNITE FINE CHEM CO LTD
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