Aqueous emulsion containing abamectin, and its preparing method

A technology of abamectin and water emulsion, applied in the field of abamectin water emulsion and its preparation, can solve problems such as poisoning, drug damage, environmental pollution, etc., reduce the use of agricultural costs, promote environmental protection, and have obvious economic benefits Effect

Active Publication Date: 2007-07-25
SHANGHAI NONGLE BIOLOGICAL PROD
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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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  • Aqueous emulsion containing abamectin, and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Raw material formula:

[0035] Abamectin 1kg, solvent xylene or toluene 2kg, emulsifier polyoxyethylene alkylphenol 2kg, thickener polyvinyl alcohol or xanthan gum 2kg, antifreeze agent ethylene glycol or propylene glycol 1.8kg, defoamer silicone 0.15kg, the balance water 91.05kg.

[0036] Preparation:

[0037] a. Add the original drug of avermectin to the organic solvent xylene or toluene, stir continuously until the abamectin is completely dissolved, and use it as an oil phase for later use;

[0038] b. According to the above formula, add emulsifier, thickener, antifreeze and defoamer into the water in turn under stirring, and keep stirring until it completely dissolves into a uniform liquid, and use it as the water phase for later use;

[0039] c. 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 minutes to form a ...

Embodiment 2

[0041] Raw material formula:

[0042] Abamectin 5kg, solvent xylene or toluene 5kg, emulsifier polyoxyethylene alkylarylphenol 5kg, thickener polyvinyl alcohol or xanthan gum 2.5kg, antifreeze agent ethylene glycol or propylene glycol 2.5kg, defoamer Silicone 0.5kg, balance water 79.5kg.

[0043] Preparation:

[0044] a. Add the original drug of avermectin to the organic solvent xylene or toluene, stir continuously until the abamectin is completely dissolved, and use it as an oil phase for later use;

[0045] b. According to the above formula, add emulsifier, thickener, antifreeze and defoamer into the water in turn under stirring, and keep stirring until it completely dissolves into a uniform liquid, and use it as the water phase for later use;

[0046] c. 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 for 30 minutes to form a...

Embodiment 3

[0048] Raw material formula:

[0049] Abamectin 8kg, solvent xylene and toluene 8kg, emulsifier polyoxyethylene fatty alcohol and sorbitol ester mixture 8kg, thickener polyvinyl alcohol or xanthan gum 4kg, antifreeze agent ethylene glycol and propylene glycol 4kg, defoaming agent Silicone agent 0.8kg, the balance of water 67.2kg.

[0050] Steps:

[0051] a. Add the original drug of avermectin to the organic solvent xylene and toluene, stir continuously until the abamectin is completely dissolved, and use it as an oil phase for standby;

[0052] b. According to the above formula, add dimehypo technical, emulsifier, thickener, antifreeze and defoamer into the water in turn under stirring, and keep stirring until it completely dissolves into a uniform liquid, and use it as the water phase for later use;

[0053] c. 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 co...

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Abstract

An aqueous emulsion of abamectin is proportionally prepared from abamectin, solvent, emulsifier, thickening agent, anti-freezing agent, defoaming agent and water through preparing oil phase, preparing water phase and mixing while shearing.

Description

technical field [0001] The invention relates to a pesticide and a preparation method thereof, in particular to an abamectin aqueous emulsion for preventing and controlling crop pests such as rice leaf rollers, rice stem borers, and rice stem borers, 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 after the national ban on the use of highly toxic pesticides in agriculture from January 1, 2007, the domestic market The demand for high-efficiency, low-toxicity and low-residue environmentally-friendly pesticides will increase, while high-toxicity pesticides will be ruthlessly eliminated under the ban. Restricting and further prohibiting the use of highly toxic pesticides is the trend of social development and the need to achieve sustainable agricultural development....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N25/02A01P7/04
Inventor 冯镇泰
Owner SHANGHAI NONGLE BIOLOGICAL PROD
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