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Water emulsion sterilization compound and preparation method thereof

A compound and water-emulsifying technology, which is applied to the field of epoxiconazole water emulsion for crop diseases and its preparation, can solve problems such as poisoning, phytotoxicity, environmental pollution, etc., and achieves reduction of the use of agricultural costs, promotion of environmental protection, and obvious economic benefits. Effect

Inactive Publication Date: 2009-03-11
张少武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the market demand for low-toxicity, high-efficiency and environment-friendly pesticides is relatively large, but the supply is small.
[0005] For a long time, all liquid pesticide technical materials and solid technical pharmaceuticals with considerable solubility in organic solvents, whether they are insecticides, acaricides, fungicides or herbicides, are mostly in the form of emulsifiable concentrates. Use, pesticide emulsifiable concentrate has always been an important dosage form of pesticide preparations, but because the emulsifiable concentrate contains a large amount of flammable organic solvents, it has strict requirements on production, storage, transportation, and use. Phytotoxicity
Especially in the long-term use process, a large amount of organic solvents volatilize into the atmosphere, causing serious pollution to the environment, all these problems have caused widespread concern

Method used

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  • Water emulsion sterilization compound and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] Raw material formula: epoxiconazole 30kg, solvent xylene 2kg, emulsifier polyoxyethylene alkylphenol 1.5kg, thickener polyvinyl alcohol or xanthan gum 1.8kg, antifreeze agent ethylene glycol or propylene glycol 1.6kg, defoamer Silicone 0.2kg, water 62.9kg.

[0034] Preparation:

[0035] Pour the original drug of epoxiconazole into the organic solvent xylene or toluene according to the above formula, stir continuously until epoxiconazole is completely dissolved, and use it as the oil phase for later use;

[0036] Add the emulsifier, thickener, and antifreeze active defoamer into the water sequentially under stirring according to the above formula, and keep stirring until it completely dissolves into a uniform liquid, and use it as the water phase for later use.

[0037] First add the oil phase to the container of the shearing machine, start stirring, then gradually add the water phase to the oil phase under stirring, the speed is controlled at 1000 rpm, and stir for 60 ...

Embodiment 2

[0039] Raw material formula: epoxiconazole 25kg, solvent xylene or toluene 5kg, emulsifier polyoxyethylene fatty alcohol 3.6kg thickener polyoxyethylene alcohol or xanthan gum 3.5kg antifreeze agent ethylene glycol or propylene glycol 2kg, defoamer organic Silicon 0.3kg, water 60.6kg.

[0040] Preparation:

[0041] According to the above formula, add the original drug of epoxiconazole into the organic solvent xylene or toluene, stir continuously until the epoxiconazole is completely dissolved, and use it as the oil phase for later use;

[0042] According to the above formula, add emulsifier, thickener, antifreeze and defoamer into water in turn under stirring, and keep stirring until completely dissolved into a uniform liquid, and use it as the water phase for later use;

[0043] First add the oil phase to the container of the shearing machine, start stirring, then gradually add the water phase to the oil phase under stirring, the speed is controlled at 12000 rpm, and stir fo...

Embodiment 3

[0045] Raw material formula: epoxiconazole 50KG, solvent xylene and toluene mixture 8KG, emulsifier polyoxyethylene alkylaryl phenol and sorbitol ester mixture 8kg thickener polyvinyl alcohol or xanthan gum 4kg, antifreeze agent ethylene glycol The mixture of alcohol and propylene glycol is 4kg, the antifoaming agent silicone is 0.8kg, and water is 25.2kg.

[0046] Preparation:

[0047] According to the above formula, add the original drug of epoxiconazole into the mixture of organic solvent xylene and toluene, stir continuously until epoxiconazole is completely dissolved, and use it as the oil phase for later use.

[0048] Then according to the above formula, add the dimehypo technical, emulsifier, thickener, antifreeze, and defoamer into the water sequentially under stirring, and keep stirring until it completely dissolves into a uniform liquid, and use it as the water phase for later use.

[0049] First add the oil phase to the container of the shearing machine, start stir...

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Abstract

The invention discloses an aqueous emulsion bactericidal compound and a preparation method thereof; the aqueous emulsion bactericidal compound comprises the components in the weight percentage: 10-80% of epoxiconazole technical product of pesticides, 1-12% of solvent, 1-15% of emulsifier, 0.1-5% of thickening agent, 0.1-7% of antifreeze, 0.1-1% of defoamer, and the rest of water. The aqueous emulsion bactericidal compound has good drug effect on pear scab, alternaria leaf spot of apples, early blight of tomato, wheat rust, anthracnose of pepper, powdery mildew of strawberry, and the like, and the control effect reaches over 86%. Furthermore, as no organic solvent is adopted, the manufacturing cost is low, and the toxicity of the preparation for the users is reduced. The aqueous emulsion bactericidal compound has no peculiar smell, and is not inflammable, so as to be safer in transportation and storage.

Description

technical field [0001] The invention relates to a pesticide and a preparation method thereof, in particular to a epoxiconazole aqueous emulsion for preventing and treating crop diseases such as wheat, rice and fruit trees and a preparation method thereof. Background technique [0002] In recent years, the global pesticide policy has undergone great changes, especially developed countries have very strict restrictions on the use of highly toxic and high residue pesticides, especially since January 1, 2007, the use of highly toxic and high residue pesticides in agriculture has been banned nationwide. The market demand for high-efficiency, low-toxicity, and low-residue environmentally-friendly pesticides will increase, while high-toxicity, high-residue pesticide varieties will be ruthlessly eliminated under the ban. Restricting and further prohibiting the use of highly toxic and high residue pesticides is the trend of social development and the need to achieve sustainable agric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N43/653A01P3/00
Inventor 张少武
Owner 张少武
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