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Azoxystrobin-folpet compounded suspension agent and preparation method thereof

A technique of azoxystrobin and folpet, which is applied in the field of suspension preparation technology, can solve the problems of high cost of use, harm to human health, environmental pollution, etc., and achieve the effects of less dosage, less environmental pollution, and low cost of prevention and control

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 kind of azoxystrobin and fungstrobin with good drug effect, high content, high utilization rate, and environmental protection Suspending agent

Method used

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  • Azoxystrobin-folpet compounded suspension agent and preparation method thereof
  • Azoxystrobin-folpet compounded suspension agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 60% of azoxystrobin technical drug, 15% of sterile elixirs, wetting and dispersing agent YUS-SC3 3%, dispersing agent YUS-TXC 2%, antifreeze ethylene glycol 3%, thickening agent xanthan gum 0.2 %, adsorbent ultrafine white carbon black 0.5%, pH adjuster glacial acetic acid 0.2%, organosiloxane defoamer 0.5%, preservative sodium benzoate 0.1%, the balance is water, except for the thickener xanthan gum The external components are mixed with water to 95%, mixed and placed in a sand mill to grind, 4 hours later, grind to 3-5μm to obtain a preliminary shaped suspension product, and then mix the thickener xanthan gum with water To 5%, and add it to the initial product of the suspension, stir it with a mixer at a speed of 800 rpm for 3 hours to obtain the final product of the suspension composed of 60% azoxystrobin and 15% sanitizer. After testing, the content of azoxystrobin is 60%, the floatation rate of azoxystrobin is 98%, the content of azoxystrobin is 15.6%, the sus...

Embodiment 2

[0032] Weigh 55% of azoxystrobin technical, 20% of sterilized elixirs, wetting and dispersing agent YUS-SC3 4%, dispersing agent D-425 3%, antifreeze glycerin 4%, thickening agent magnesium aluminum silicate 0.3% , Superfine diatomaceous earth adsorbent 0.5%, pH adjuster citric acid 0.3%, organosiloxane defoamer 0.8%, preservative sodium benzoate 0.1%, the balance is water, except for the thickener magnesium aluminum silicate The external components are mixed with water to 95%, mixed and placed in a sand mill to grind, 4 hours later, grind to 3-5μm to obtain a preliminary shaped suspension product, and then mix the thickener with water to 5% , And added to the initial product of the suspension, after 3 hours of stirring with a mixer at a speed of 800 revolutions / min, the final product of the suspension composed of 55% azoxystrobin and 20% Sanitizer can be obtained. After testing, the content of azoxystrobin is 55.2%, the floating rate of azoxystrobin is 90%, the content of azox...

Embodiment 3

[0034] Weigh 50% of azoxystrobin original drug, 25% of sterile elixirs, 3.5% wetting and dispersing agent Tensiofix 35300, dispersant NNO 2.5%, antifreeze 3.5% sodium chloride, thickening agent carboxymethyl cellulose 0.25% , Adsorbent ultra-fine clay 0.65%, pH adjuster sorbic acid 0.25%, organosiloxane defoamer 0.5%, preservative sodium benzoate 0.1%, the balance is water, except for the thickener carboxymethyl cellulose Mix the components of the mixture with water to 95%, mix and grind in a sand mill. After 4 hours, grind to 3-5μm to obtain a preliminary formed suspension product. Then mix the thickener with water to 5%. It is added to the initial product of the suspension, and the final product of the suspension composed of 50% azoxystrobin and 25% azoxystrobin and 25% sanitizer is obtained after stirring with a mixer at a speed of 800 revolutions per minute for 3 hours. After testing, the content of azoxystrobin is 50%, the floatation rate of azoxystrobin is 91%, the conten...

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Abstract

The invention discloses azoxystrobin-folpet compounded suspension agent and a preparation method thereof. The suspension agent comprises, by weight percent, 20-60% of azoxystrobin, 10-50% of folpet, 3-4% of wetting dispersing agent, 2-3% of dispersing agent, 3-4% of antifreezing agent, 0.2-0.3% of thickening agent, and the balance of water. The method includes firstly, weighing the azoxystrobin, the folpet, wetting dispersant, dispersant and the antifreezing agent by weight, adding water to obtain 95%, and mixing the above ingredients; secondly, grinding the mixed ingredients in a bead mill for 4-5 hours to obtain initial suspension agent; and thirdly, mixing the thickening agent and the water to obtain 5%, adding the mixture into the initial suspension agent, and using a mixer to mix at high speed for 2-4 hours to obtain the finished suspension agent. The suspension agent is made by compounding technology, antibacterial spectrum of the suspension agent is broadened, effect of the suspension agent is enhanced, toxicity of the suspension agent is lowered, and the suspension agent has the advantages of high active ingredient content, high suspending rate, high dispersiblity, high stability and the like.

Description

technical field [0001] The invention relates to the field of preparation of pesticide preparations, in particular to a preparation process of a suspending agent. Background technique [0002] There are many kinds of agricultural fungicides on the market at present, and azoxystrobin and folpet are two of them. Azoxystrobin is a methoxyacrylate fungicide. Its original drug is a brown solid with a melting point of 114-116°C. The pure product is a white crystal with a melting point of 116°C and a relative density of 1.34. The solubility in water is 6mg / L (20°C). Soluble in methanol, toluene, acetone, slightly soluble in n-octanol, hexane, easily soluble in ethyl acetate, acetonitrile, dichloromethane. The half-life of photolysis in aqueous solution is 2 weeks, and it is stable to hydrolysis. Acute oral LD50 of rats and mice (male and female) > 5000mg / kg, acute oral LD50 of rats > 2000mg / kg, slightly irritating to rabbit skin and eyes. Rat acute inhalation LC50 (mg / L): m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/04A01N43/54A01N25/04A01P3/00
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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