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High-content fosthiazate water emulsion and preparation method thereof

A thiazophos, high-content technology, applied in botanical equipment and methods, pesticides, biocides, etc., can solve the problems of consumption of petrochemical resources, high processing cost of granules, environmental pollution, etc., to save petrochemical resources, raw materials, etc. High content of medicinal ingredients and environmentally friendly effects

Inactive Publication Date: 2016-04-27
PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the emulsifiable concentrate preparation is mainly prepared by aromatic organic solvents, a large amount of aromatic organic solvents such as toluene, xylene, mixed toluene, etc. not only pollute the environment to a certain extent, but also consume a large amount of petrochemical resources, and the processing cost of granules is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] A preparation method of a high-content thiazolylphos-water emulsion, comprising the steps of:

[0029] (1) Mix and stir thiazole phosphorus with emulsifier, wetting agent, stabilizer and dispersant evenly to obtain an oil phase;

[0030] (2) mixing antifreeze with water to obtain a water phase;

[0031] (3) Slowly add the oil phase into the water phase under high shear conditions, or slowly add the water phase into the oil phase, and stir evenly to obtain a high-content thiazolylphos-in-water emulsion.

example 1

[0033] In this example, a high-content thiazole-phosphorous emulsion in water was prepared according to the above-mentioned preparation method of the high-content thiazolylphosphorous emulsion in water.

[0034] According to the technical scheme of the present invention, take by weighing 10 g of thiazolphos, 10 g of epoxidized soybean oil, and stir well, then add 3 g of alkylarylphenol polyoxyethylene ether phosphate, 2 g of naphthalene carboxylate, and sulfosuccinic acid Dioctyl sodium salt 1.5g, stirred and dissolved to obtain an oil phase; propylene glycol 4g, deionized water to make up to 100g, and the two were fully stirred to make a water phase; after opening and stirring in the preparation kettle, slowly add the oil phase to the water phase , 6000 rev / min shearing for 30 minutes, to obtain milky white thiazole phosphorus emulsion in water.

example 2

[0036] In this example, a high-content thiazole-phosphorous emulsion in water was prepared according to the above-mentioned preparation method of the high-content thiazolylphosphorous emulsion in water.

[0037] According to the technical scheme of the present invention, take by weighing thiazophos former medicine 20g, peanut oil 12g, after fully stirring, then add polyoxyethylene sorbitan fatty acid ketone 4g, fatty alcohol polyoxyethylene ether 2g, polyethylene glycol 1g, Dioctyl sulfosuccinate sodium salt 1.5g, stirring and dissolving to obtain an oil phase; dimethyl sulfoxide 4g, deionized water to make up to 100g, the two are fully stirred to make an aqueous phase; after opening and stirring in the preparation kettle, put The water phase was slowly added to the oil phase, and sheared at 6,000 rpm for 15 minutes to obtain a milky white thiazolphos-in-water emulsion.

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PUM

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Abstract

The invention relates to a high-content fosthiazate water emulsion and a preparation method thereof. The high-content fosthiazate water emulsion is composed of the components of 10-40% of fosthiazate, 0.1-10% of an emulsifier, 1-5% of a wetting agent, 3-15% of a stabilizing agent, 0.5-2% of a dispersing agent, and 1-5% of an antifreeze agent, the balance being deionized water. The preparation method comprises the following steps: fosthiazate, the emulsifier, the wetting agent, the stabilizing agent and the dispersing agent are well mixed by stirring, such that an oil phase is prepared; the antifreeze agent is mixed with water, such that a water phase is obtained; under a high-shear condition, the oil phase is slowly added into the water phase, or the water phase is slowly added into the oil phase; the mixture is well mixed, such that the high-content fosthiazate water emulsion is obtained. The high-content fosthiazate water emulsion provided by the invention has the advantages of high efficiency, low toxicity and good stability.

Description

technical field [0001] The invention relates to the field of environment-friendly pesticides, in particular to a high-content thiazolylphos-water emulsion and a preparation method thereof. Background technique [0002] The original drug of thiazophos is a light brown oily substance with a solubility (20°C, mg / L) of 9.85 in water and 15.14 in n-hexane, and is miscible with organic solvents; thiazophos is an organophosphorus nematicide, mainly used for the control of Aphids etc. For a long time, thiazophos made into water emulsion is very unstable, not only easy to separate layers, but also the original drug is easy to decompose in water, which restricts the application of its preparation. The current formulations mainly include emulsifiable concentrates and granules. Since emulsifiable concentrate preparations are mainly prepared with aromatic organic solvents, a large amount of aromatic organic solvents such as toluene, xylene, and mixed toluene not only pollute the enviro...

Claims

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Application Information

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IPC IPC(8): A01N57/32A01N25/04A01P5/00A01P7/04
CPCA01N57/32A01N25/04
Inventor 章玉萍王龙江孙宝利黄华朱天圣
Owner PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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