Chlorpyrifos-dimehypo water emulsion and preparation thereof

A double-water emulsion, chlorpyrifos technology, applied in pesticides, botanical equipment and methods, biocides, etc., can solve problems such as potential safety hazards, easy occurrence of poisoning, environmental pollution, etc., achieve less eye irritation, reduce manufacturing Cost and use cost, effect of reducing pollution

Active Publication Date: 2007-02-14
SHANGHAI NONGLE BIOLOGICAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the drift of the pesticide powder and the pesticide emulsifiable concentrate contains a large amount of flammable organic solvents that are harmful to humans, animals and the environment, it is very easy to cause the powder in the powder or the organic solvent in the emulsifiable concentrate to be absorbed by the human body during production, storage, transportation and use. Absorption, thus prone to poisoning or drug injury, there are potential safety hazards
Especially in the long-term use process, the crops have developed resistance, which greatly reduces the drug efficacy, and a large amount of organic solvents volatilize into the atmosphere, causing serious pollution to the environment. All these problems have aroused widespread concern.

Method used

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  • Chlorpyrifos-dimehypo water emulsion and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Formula: 2.5 grams of chlorpyrifos technical product produced by Dow Agrochemicals, 36 grams of dimehypo, 5 grams of xylene, 2 grams of ethylene oxide-propylene oxide block copolymer, 8.5 grams of inulin, 8.9 grams of ethylene glycol / propylene glycol composite antifreeze, 0.1 grams of organic silicon, and 37 grams of water.

[0030] Preparation steps:

[0031] 1. Put 5 grams of xylene in a reaction container, then add 2.5 grams of chlorpyrifos technical substance into the xylene, and keep stirring until the chlorpyrifos is completely dissolved in the xylene, and then make a chlorpyrifos oil for later use.

[0032] Two, 37 grams of water are placed in the reaction vessel, then 36 grams of dimehypo, 2 grams of ethylene oxide-propylene oxide block copolymer, 8.5 grams of inulin, and 8.9 grams of ethylene glycol / propylene glycol composite antifreeze gram and 0.1 gram of organic silicon were added into water in turn, and stirred continuously until each substance was complet...

Embodiment 2

[0035] Formula: 20 grams of chlorpyrifos technical product produced by Dow Agrochemicals, 20 grams of dimehypo, 16 grams of toluene, 5 grams of ethylene oxide-propylene oxide block copolymer, 5.5 grams of xanthan gum, 5.5 grams of glycol / propylene glycol compound antifreeze, 0.6 grams of organic silicon, and 27.4 grams of water.

[0036] Preparation steps:

[0037] 1. Put 16 grams of toluene in the reaction container, then add 20 grams of chlorpyrifos technical substance into the toluene, and keep stirring until the chlorpyrifos is completely dissolved in the toluene to make chlorpyrifos oil for later use.

[0038] 2. Put 27.4 grams of water in the reaction vessel, then add 20 grams of dimehypo, 5 grams of ethylene oxide-propylene oxide block copolymer, 5.5 grams of xanthan gum, and 5.5 grams of ethylene glycol / propylene glycol composite antifreeze gram and 0.6 gram of organosilicon are added into water successively, and constantly stirred until each substance is completely d...

Embodiment 3

[0041]Formula: 38 grams of chlorpyrifos technical product produced by Dow Agrochemicals, 8 grams of dimehypo, 23 grams of a mixture of xylene and toluene, 8 grams of ethylene oxide-propylene oxide block copolymer, and chrysanthemum 0.2 grams of alcohol, 0.8 grams of ethylene glycol / propylene glycol composite antifreeze, 0.8 grams of organic silicon, and 21.2 grams of water.

[0042] Preparation steps:

[0043] 1. Put 23 grams of a mixture of xylene and toluene in a reaction vessel, then add 38 grams of chlorpyrifos technical product into the mixture of xylene and toluene, and keep stirring until chlorpyrifos is completely dissolved in the mixture of xylene and toluene , made into chlorpyrifos oil for later use.

[0044] 2. Put 21.2 grams of water in the reaction vessel, then add 8 grams of dimehypo, 8 grams of ethylene oxide-propylene oxide block copolymer, 0.2 grams of inulin, and 0.8 grams of ethylene glycol / propylene glycol composite antifreeze gram and 0.8 gram of organi...

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Abstract

The invention provides a chlorpyrifos-dimehypo water emulsion and preparation method, wherein the water emulsion comprises Chlorpyrifos 2-40%, dimehypo 5-40%, solvent 2.5-27%, emulsifying agent 1-10%, and thickening agent 0.1-10%, antifreeze additive 0.5-10%, defoaming agent 0.1-1% and balancing water through mixing.

Description

technical field [0001] The invention relates to a pesticide and a preparation method thereof, in particular to a chlorpyrifos-insecticidal double water emulsion for preventing and controlling crop pests such as rice stem borer and rice stem borer and a preparation method thereof. Background technique [0002] For a long time, all liquid pesticides and solid pesticides with considerable solubility in organic solvents, whether they are insecticides, acaricides, fungicides or herbicides, are mostly used in the form of powder or emulsifiable concentrate. According to statistics, the production of powders and emulsifiable concentrates in my country accounts for two-thirds of the total output of pesticides. Pesticide powders and pesticide emulsifiable concentrates have always been important formulations of pesticide preparations. However, due to the drift of the pesticide powder and the pesticide emulsifiable concentrate contains a large amount of flammable organic solvents that a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/16A01N41/08A01N25/02A01P7/04
Inventor 冯镇泰
Owner SHANGHAI NONGLE BIOLOGICAL PROD
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