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Preparation method of water-containing pesticide preparation and water-containing pesticide preparation

A technology for pesticide preparation and hot fogging agent, which is applied in the field of pesticide preparation processing, can solve the problems of cumbersome processing of pesticide preparations, prone to creaming during processing, poor storage stability, etc., and achieves good storage stability, improved preparation stability and particle size. Narrow distribution of effects

Inactive Publication Date: 2019-03-12
SHENZHEN NOPOSION AGROCHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The object of the present invention is to provide a preparation method of water-containing pesticide preparation and the water-containing pesticide preparation obtained by the preparation method, aiming to solve the problem of complicated processing of pesticide preparations such as dispersible oil suspension preparation, oil suspension hot spray, and film-expanding oil preparation. Problems such as creaming, wide particle size distribution, large median diameter, and poor storage stability are prone to occur during processing

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  • Preparation method of water-containing pesticide preparation and water-containing pesticide preparation
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  • Preparation method of water-containing pesticide preparation and water-containing pesticide preparation

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preparation example Construction

[0021] The invention provides a method for preparing a water-containing pesticide preparation, wherein the water-containing pesticide preparation includes a dispersible oil suspension, an oil-suspended thermal mist, and a film-expanding oil.

[0022] When the aqueous pesticide formulation is a dispersible oil suspension concentrate, the dispersible oil suspension concentrate includes the following raw material components by weight percentage:

[0023] 1% to 50% active ingredient; 5% to 20% emulsifier; 0.1% to 2% wetting agent; 0.2% to 4% dispersant; 0.02% to 0.4% defoamer; 1% to 15% water; 0.5% to 3% thickening agent; oil base, the amount of oil base is to supplement the total amount of the dispersible oil suspending agent to reach 100%. In addition, the dispersible oil suspension may further contain a stabilizer, and the weight percentage of the stabilizer is not more than 2%.

[0024] The preparation method of this dispersible oil suspension concentrate at least comprises t...

Embodiment 1

[0074] A preparation method of a fluorine-containing thiazolidinone dispersible oil suspension, comprising the following steps:

[0075] (1) Preparation of 50% fluthiazolidin water concentrated suspension: according to the percentage by weight, 50% fluthiapiprofen, 1% fatty alcohol ethoxylate, 2% alkyl naphthalene sulfonate sodium salt, high Molecular carboxylate 1%, organic silicon defoamer 0.2%, and deionized water are fully mixed and then sand-milled until the average particle size is 1-5 μm, and then filtered to obtain a water-concentrated suspension.

[0076] (2) Preparation of the continuous oil phase: according to weight percentage, 4% of calcium dodecylbenzenesulfonate, 6% of fatty alcohol polyoxyethylene ether, 1.5% of organic bentonite, 1% of white carbon black, Methyl oleate was supplemented to 90%, stirred and mixed evenly to obtain a continuous oil phase.

[0077] (3) Preparation of 5% thiazolidinone dispersible oil suspension: according to weight percentage, 10%...

Embodiment 2

[0079] A preparation method of a fluorine-containing thiazolidinone dispersible oil suspension, comprising the following steps:

[0080] (1) The preparation of 50% thiazolidone aqueous concentrated suspension is the same as that in Example 1.

[0081] (2) Preparation of the continuous oil phase: according to weight percentage, calcium dodecylbenzenesulfonate 3%, castor oil polyoxyethylene ether 4%, sorbitan polyoxyethylene polyoxypropylene 7 %, organic bentonite 1%, white carbon black 1%, soybean oil to make up to 80%, stir and mix evenly to obtain a continuous oil phase.

[0082] (3) Preparation of 10% thiazolidinone dispersible oil suspension: according to weight percentage, under 800rpm rotating speed, 20% of the water concentrated suspension obtained in step (1) and the continuous oil phase obtained in step (2) Mix and stir evenly to obtain 10% fluthiazolidone dispersible oil suspension concentrate.

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Abstract

The invention relates to the technical field of pesticide preparation processing, in particular to a preparation method of a water-containing pesticide preparation. The preparation method at least comprises the following steps an active component is mixed with a wetting agent, a dispersing agent, a defoaming agent and water, the mixture is sanded and filtered, and water concentrated suspension isobtained; an emulgator, a thickener and oil base are mixed to obtain a mixture; and the water concentrated suspension and the mixture are mixed, and the water-containing pesticide preparation is obtained. The water-containing pesticide preparation with the active component grain size being distributed narrowly and uniformly, the median diameter being small and the storage stability being good canbe obtained through the preparation method.

Description

technical field [0001] The invention belongs to the technical field of pesticide preparation processing, and in particular relates to a method for preparing an aqueous pesticide preparation and the aqueous pesticide preparation. Background technique [0002] Pesticides refer to chemicals and biological drugs that prevent and control harmful organisms in agriculture, forestry and animal husbandry and regulate plant growth, and play an important role in ensuring the growth and harvest of crops. Pesticide dosage form processing usually involves properly diluting the active ingredient of the pesticide with a diluent, and processing it into a pesticide dosage form product that is easy to use, safe, obtains maximum biological activity, does not decompose for a long time, and has stable performance. When containing active solid raw powders that are difficult to dissolve in both water and oil phases and have high chemical stability in water, in order to meet the needs of drug effica...

Claims

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Application Information

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IPC IPC(8): A01N25/04
CPCA01N25/04
Inventor 吴成林杨立平李谱超廖科超马金龙王昆
Owner SHENZHEN NOPOSION AGROCHEM
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