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Water dispersible granule formulated by trifloxystrobin and cymoxanil and preparation method thereof

A technology of trifloxystrobin and cymoxanil, which is applied in the field of preparation of water-dispersible granules, can solve the problems of harming human health, environmental pollution, and high cost of use, and achieve the effects of small environmental pollution, expanded antibacterial spectrum, and reduced control costs

Inactive Publication Date: 2012-09-19
LIMIN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the disadvantages of environmental pollution, harm to human health, and high cost of use in the prior art, the purpose of the present invention is to provide a water-dispersed compound of trifloxystrobin and cymoxanil with good drug effect, high content, and environmental protection. Granules

Method used

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  • Water dispersible granule formulated by trifloxystrobin and cymoxanil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh raw material components: trifloxystrobin technical 60%, cymoxanil technical 15%, wetting agent T1004 3%, dispersant T2700 7%, disintegrant ammonium sulfate 4%, diluent kaolin 6%, disinfectant Foaming agent EP6703 2%, binder polyethylene glycol 2%, mix the above raw material components, after stirring evenly, pulverize through a jet mill to obtain a mother powder with a particle size of 400 mesh or more, and then add 30% of the raw material mass to remove Ionized water is fully mixed with a mixing mixer, granulated with a granulator, then dried by a dryer, and passed through a sieve of 8 mesh and 40 mesh by a sieving machine to obtain 60% trifloxystrobin and 15% cymoxanil. Water dispersible granules. After testing, the content of trifloxystrobin is 60%, the suspension rate of trifloxystrobin is 85%, the content of cymoxanil is 15.4%, the suspension rate of cymoxanil is 81%, the water content is 1.9%, the sieving (44μm sieve) is 98.3%, and the long-lasting foaming p...

Embodiment 2

[0030] Weigh raw material components: trifloxystrobin technical 55%, cymoxanil technical 20%, wetting agent EFW 4%, dispersant naphthalenesulfonate D-425 6%, disintegrant ammonium sulfate 5%, diluted Diatomaceous earth 6%, defoamer EP6703 1%, binder carboxymethyl cellulose 2%, mix the above raw material components, stir evenly, and pulverize with a jet mill to obtain mother powder with a particle size of more than 400 mesh , then add deionized water with 30% raw material quality, fully mix with a mixing mixer, granulate with a granulator, then dry through a dryer, and pass through a sieve with 8 mesh and 40 mesh sieves to obtain 55% trifloxystrobin Water-dispersible granules compounded with 20% cymoxanil. After testing, the trifloxystrobin content is 55.6%, the trifloxystrobin suspension rate is 87%, the cymoxanil content is 20.2%, the cymoxanil suspension rate is 83%, the water content is 1.7%, the sieve (44μm sieve) is 99.1%, and the long-lasting foaming property (1min) 10m...

Embodiment 3

[0032] Weigh raw material components: trifloxystrobin technical 50%, cymoxanil technical 25%, wetting agent WP 3%, dispersant calcium lignosulfonate 7%, disintegrant sodium citrate 4%, defoaming agent Agent EP6703 1%, diluent kaolin 8%. After the above raw material components are mixed evenly, they are pulverized by an airflow mill to obtain mother powder with a particle size of 400 mesh or more, then add deionized water with a mass of 30% of the raw material, fully mix with a mixing mixer, and granulate with a granulator, and then pass through Dried in a dryer, passed through a sieving machine with 8 mesh and 40 mesh sieves to obtain a water-dispersible granule compounded with 50% trifloxystrobin and 25% cymoxanil. After testing, the content of trifloxystrobin is 50.4%, the suspension rate of trifloxystrobin is 86%, the content of cymoxanil is 25.5%, the suspension rate of cymoxanil is 82%, the water content is 1.5%, the sieving (44μm sieve) is 98.9%, and the long-lasting foa...

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Abstract

The invention discloses a water dispersible granule formulated by trifloxystrobin and cymoxanil and a preparation method of the water dispersible granule. The water dispersible granule contains the following materials by mass: 20% to 60% of trifloxystrobin original drug, 10% to 50% of cymoxanil original drug, 3% to 4% of wetting agent, 6% to 7% of dispersant, 4% to 5% of disintegrant and 6% to 15% of diluent, and also contains about 2% of binder and 1% to 2% of antifoaming agent. The method comprises the following steps that: (1) taking the following raw material ingredients by weight: the trifloxystrobin original drug, the cymoxanil original drug, the wetting agent, the dispersant, the disintegrant and the diluent, and uniformly mixing the raw materials; (2) pulverizing the above mixed ingredients with a jet pulverizer to obtainmother powder with particle size of more than 400 meshes; (3) adding deionized water into the mother powder, thoroughly mixing with a stirrer, granulating with a granulator, then drying with a dryer, and screening granules with a 8-mesh screen and a 40-mesh screen with a screening machine to obtain the water dispersible granule formulated by trifloxystrobin and azoxystrobin. The water dispersible granule provided by the invention has the advantages of broad spectrum antibiotic, strong efficacy, low toxicity, fast disintegrating and the like.

Description

Technical field [0001] The present invention relates to the field of pesticide preparation, specifically, to a preparation process of water-dispersible granules. Background technique [0002] At present, there are many agricultural fungicides, and trifloxystrobin and cymoxanil are two of them. Trifloxystrobin is a methoxyacrylate fungicide first developed by Syngenta and developed by Bayer in Germany. The pure product appears as a white to gray crystalline powder, with a melting point of 72.9°C, a boiling point of 312°C, and a solubility in water (25 ℃): 0.61 mg / L, solubility in organic solvents (g / L, 25℃): >500 in acetone, dichloromethane, ethyl acetate, 500 in toluene, 11 in n-hexane, 18 in octanol, methanol Medium 76; Trifloxystrobin is stable under neutral and weakly acidic conditions at 25°C and is not easily hydrolyzed. Under alkaline conditions, the hydrolysis rate will increase with the increase of pH. Trifloxystrobin plays an antibacterial effect by locking the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/34A01N37/50A01N25/14A01P3/00
Inventor 孙敬权徐勤江陈金华刘念江孙丽梅陈婧
Owner LIMIN CHEM CO LTD
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