Application of biological diesel in pesticide microemulsion

A biodiesel and microemulsion technology, applied in biocides, chemicals for biological control, applications, etc., can solve problems such as human health and environmental threats, achieve outstanding environmental performance, good biodegradability, and reduce pesticides price effect

Inactive Publication Date: 2012-07-11
LOGISTICAL ENGINEERING UNIVERSITY OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most microemulsions need to add or use traditional solvents with high toxicity and strong polarity during the preparation, which poses a threat to human health, the environment and groundwater. Therefore, it is imperative to find new green and environmentally friendly solvents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 : Firstly, 400g of dimethoate powder is dissolved in 460g of mixed solvent containing biodiesel, xylene and co-solvent methanol (biodiesel accounts for about 30% of the total amount of solvent), stirred, and after fully dissolving, add 140g of A mixed emulsifier composed of calcium dodecylbenzenesulfonate, Tween 80 and OP-10, stirred and dissolved for later use. Finally, 800g deionized water is slowly added to the mixed species that has been fully mixed in front, and stirred until the solution is in a uniform and transparent state, that is, the dimethoate microemulsion pesticide product containing biodiesel solvent (containing dimethoate 40% in the dimethoate emulsifiable oil) about).

Embodiment 2

[0029] Example 2 : First, 500g dimethoate powder is dissolved in 350g mixed solvent containing biodiesel, xylene and co-solvent methanol (biodiesel accounts for about 20% of the total solvent), stir, and after fully dissolving, add 10g Si Pan 80 emulsifier, stirred evenly to obtain an oil phase mixture; then 90g of mixed emulsifier composed of calcium dodecylbenzenesulfonate, Tween 80 and OP-10 was added to 900g of deionized water, stirred evenly to obtain a water phase mixture . Finally, the water phase mixture is slowly added to the oil phase mixture, and stirred until the solution is uniform and transparent, and the biodiesel solvent-containing dimethoate microemulsion pesticide product (dimethoate emulsifiable concentrate contains about 50%) is obtained.

Embodiment 3

[0030] Example 3 : First, dissolve 100g of cypermethrin in 400g of a mixed solvent containing biodiesel, xylene, toluene and co-solvent methanol (biodiesel accounts for about 50% of the total solvent), stir, and after fully dissolving, add 18g Span 80 emulsifier, stirred evenly to obtain an oil phase mixture; then 180g of mixed emulsifier composed of calcium dodecylbenzenesulfonate, Tween 80, and OP-10 was added to 320g of deionized water, stirred evenly to obtain a water phase mixture. Finally, the water phase mixture is slowly added to the oil phase mixture, and stirred until the solution is uniform and transparent, and the biodiesel solvent-containing cypermethrin microemulsion pesticide product (cypermethrin emulsifiable concentrate contains about 10% cypermethrin) is obtained.

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PUM

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Abstract

The invention provides application of biological diesel in pesticide microemulsion and a method for the biological diesel serving as a solvent to prepare the pesticide microemulsion. The method comprises the specific steps of adding pesticide raw materials and an oil-solubility emulsifying agent into the biological diesel or a mixed solvent formed by the biological diesel and other solvents to be stirred; fully dissolving to obtain oil phase mixture; adding a water-solubility emulsifying agent into water to be stirred, and fully dissolving to achieve water phase mixture; slowly adding the water phase mixture into the oil phase mixture, stirring until the mixture is transparent, and namely obtaining pesticide microemulsion products containing the biological diesel. The application of the biological diesel in the pesticide meicroemulsion explores new application of existing biological diesel solvents, exploits new application fields, and has the advantages of being environmental-friendly, high in performance cost, simple in preparation method, capable of eliminate special equipment and the like.

Description

technical field [0001] The invention is a method and technology for preparing an environment-friendly pesticide microemulsion by using biodiesel (fatty acid methyl ester) as a pesticide solvent component. [0002] Background technique [0003] With the improvement of people's awareness of environmental protection, in view of the environmental pollution problems of traditional pesticides, major changes have taken place in the development and production of pesticides, and the concept of "green pesticides" has been proposed. The so-called "green pesticide" means that not only its active ingredients are completely natural, but also that the solvents, emulsifiers, stabilizers and other auxiliary agents for the production of pesticides are all natural substances. Since the current dosage forms of pesticides in my country are still mainly old dosage forms such as emulsifiable concentrates and wettable powders, these dosage products contain a large amount of organic solvents such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N57/12A01N53/08A01P7/00
Inventor 王九
Owner LOGISTICAL ENGINEERING UNIVERSITY OF PLA
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