Dinotefuran oil-based seed coating agent and preparation method thereof

A dinotefuran and oil-based technology, which is applied in the field of dinotefuran oil-based seed coating and its preparation, can solve the problems of large particle size of dinotefuran, low drug efficacy, introduction of mechanical impurities, etc., and achieve fast diffusion speed , high efficacy, and the effect of reducing environmental pollution

Active Publication Date: 2019-03-15
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a preparation method of dinotefuran oil-based seed coating agent, which aims to solve the problems of large particle size of dinotefuran in the preparation obtained by the existing preparation process, low drug efficacy, introduction of mechanical impurities and other technical problems. question

Method used

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  • Dinotefuran oil-based seed coating agent and preparation method thereof
  • Dinotefuran oil-based seed coating agent and preparation method thereof
  • Dinotefuran oil-based seed coating agent and preparation method thereof

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preparation example Construction

[0017] A kind of preparation method of dinotefuran oil-based seed coating agent of the present invention comprises:

[0018] a) under heating conditions, dinotefuran, the first emulsifier, dispersant and water are mixed and dissolved to obtain dinotefuran aqueous solution;

[0019] b) mixing the second emulsifier, thickener, film-forming agent, colorant and oil base to obtain a mixed oil;

[0020] c) Under high-speed stirring, add the dinotefuran water solution in step a) to the mixed oil in step b), stir at high speed, and emulsify to obtain a W / O emulsion.

[0021] In the above technical solution, the solubility of dinotefuran in water at 25°C is only 40g / L, and when the water temperature is greater than 60°C, the solubility is greater than 2000g / L. In the embodiments of the present invention, the solubility of dinotefuran in hot water is sharply increased With great characteristics, water is used as a solvent to dissolve dinotefuran, which is green and environmentally frie...

Embodiment 1

[0067] The present embodiment provides a kind of dinotefuran oil-based seed coating, its formula is as follows table 1:

[0068] Table 1

[0069] components

content

Remark

dinotefuran

5％

first active ingredient

Deionized water

5％

solvent

Fatty alcohol polyoxyethylene ether

8％

first emulsifier

Alkylbenzenesulfonate

3％

Second emulsifier

lignosulfonate

2％

Dispersant

polyethylene glycol

4％

Film former

Alkaline rose essence

2％

Colorant

Organic bentonite

1％

thickener

Silica

2％

thickener

methyl oleate

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Oil base

[0070] Its preparation includes the following steps:

[0071] S11. Mix dinotefuran and deionized water, heat to 56° C. under stirring at 1000 rpm, so that dinotefuran is completely dissolved in deionized water; add the first emulsifier and dispersant and continue stirring to obtain dinotefuran aqueous sol...

Embodiment 2

[0075] This embodiment provides a kind of dinotefuran oil-based seed coating agent, its formula is as follows table 2:

[0076] Table 2

[0077] components

content

Remark

dinotefuran

5％

first active ingredient

Emamectin Benzoate

1％

second active ingredient

Deionized water

5％

solvent

Fatty alcohol polyoxyethylene ether

8％

first emulsifier

Alkylbenzenesulfonate

3％

Second emulsifier

lignosulfonate

2％

Dispersant

polyethylene glycol

3％

Film former

Alkaline rose essence

2％

Colorant

Organic bentonite

1％

thickener

Silica

2％

thickener

BHT

1％

stabilizer

sec-butyl acetate

5％

oil base

methyl oleate

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Oil base

[0078] Its preparation includes the following steps:

[0079] S21. Mix dinotefuran and deionized water, heat to 56° C. under stirring at 500 rpm, so that dinotefuran is c...

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Abstract

The invention belongs to the technical field of pesticide preparation processing, and particularly relates to a dinotefuran oil-based seed coating agent and a preparation method thereof. The preparation method of the dinotefuran oil-based seed coating agent provided by the invention comprises the following steps: (a) mixing dinotefuran, a first emulsifier, a dispersing agent and water under a heating condition, and performing dissolving to obtain a difloxacin aqueous solution; (b) uniformly mixing a second emulsifier, a thickener, a film former, a colorant and an oil base to obtain a mixed oilagent; and (c) adding the dinotefuran aqueous solution obtained in the step (a) in a high-speed stirring state into the mixed oil agent obtained in the step (b), and performing emulsification to obtain W / O emulsion. According to the dinotefuran oil-based seed coating agent and the preparation method thereof, water is used as a solvent to pre-dissolve dinotefuran, and the dinotefuran is emulsifiedand dispersed into the oil base to form the W / O emulsion, so that the particle size of dinotefuran particles precipitated in droplets is at the nanometer level; and the storage stability is high, thediffusion speed is high, and the pesticide efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of pesticide preparation processing, and in particular relates to a dinotefuran oil-based seed coating agent and a preparation method thereof. Background technique [0002] In modern agricultural production, chemical treatment of seeds with seed treatment agents is one of the most economical and convenient methods to prevent and control underground pests and crop soil-borne and seed-borne diseases. A seed treatment is a pesticide formulation with film-forming properties used for the treatment of crop or other plant seeds. The seed treatment agent can solidify on the surface of the seed to form a film called a seed coat, which absorbs water and swells in the soil without being dissolved, allowing the water and air required for normal germination of the seed to pass through, and the pesticides and seed fertilizers contained in it are slowly released. It can kill underground pests and seedling pests, prevent a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N43/90A01N43/40A01N53/08A01N47/38A01N43/653A01N57/16A01N47/24A01N37/46A01N25/04A01P7/04
CPCA01N25/04A01N37/46A01N43/40A01N43/653A01N43/90A01N47/24A01N47/38A01N51/00A01N53/00A01N57/16
Inventor 吴成林李广泽骆风华杨立平
Owner SHENZHEN NOPOSION AGROCHEM
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