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Pymetrozine-dinotefuran dry suspending agent and preparation method thereof

A dry suspension agent, dinotefuran technology, applied in the field of pesticide adjuvants, to achieve the effect of not easy precipitation and layering, good suspension performance

Active Publication Date: 2021-09-24
中化化工科学技术研究总院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention provides a kind of pymetrozine · dinotefuran dry suspension and its preparation method. The dispersant used in the pymetrozine · dinotefuran dry suspension of the present invention is an anionic surface The active agent and wetting agent are anionic liquids, used in conjunction with lignin, have good self-dispersibility in water, avoid the problem of not easy to disintegrate and disperse, and have no dead particles

Method used

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  • Pymetrozine-dinotefuran dry suspending agent and preparation method thereof
  • Pymetrozine-dinotefuran dry suspending agent and preparation method thereof
  • Pymetrozine-dinotefuran dry suspending agent and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] A dry suspension concentrate of pymetrozine and dinotefuran, which is composed of the following components in mass percentage: 60% of the original drug of pymetrozine, 5% of the original drug of dinotefuran, and 5% of ethoxylated triphenylethylene Potassium phenol phosphate, 8% sodium lauryl sulfate, 7% sodium lignosulfonate, 15% kaolin.

[0027] The preparation method of above-mentioned pymetrozine dinotefuran dry suspension concentrate:

[0028] Step 1: Pour 5kg of polycarboxylate, 8kg of sodium lauryl sulfate, and 7kg of sodium lignosulfonate into a shear kettle filled with 100kg of water, shear and stir evenly, and then add 60kg of pymetrozine technical , 5kg of dinotefuran former drug.

[0029] Step 2: Inhale the slurry into the first-level sand mill, then sand-mill in the second-level sand mill in turn, and repeat the sanding until the particle size of the slurry is less than or equal to 5 μm; the sanding medium is a pick bead with a diameter of 0.6 mm;

[0030]...

Embodiment 2

[0032] A dry suspension concentrate of pymetrozine and dinotefuran, which is composed of the following components in mass percentage: 50% of the original drug of pymetrozine, 20% of the original drug of dinotefuran, and 3.3% of ethoxylated triphenylethylene Phenylphenol phosphate potassium salt, 1.7% polycarboxylate, 4% sodium lauryl sulfate, 4% sodium dodecylbenzenesulfonate, 10% sodium lignosulfonate, 7% light calcium.

[0033] The preparation method is the same as in Example 1.

Embodiment 3

[0035] A dry suspension concentrate of pymetrozine·dinotefuran, which is composed of the following components in mass percentage: 50% of the original drug of pymetrozine, 10% of the original drug of dinotefuran, 2% of naphthalene sulfonate, 2% of dinotefuran Oxylated tristyrylphenol phosphate potassium salt, 5% sodium lauryl sulfate, 5% sodium lignosulfonate, 10% calcium lignosulfonate, 16% barium sulfate.

[0036] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a pymetrozine-dinotefuran dry suspending agent and a preparation method thereof, and belongs to the technical field of pesticides. The dry suspending agent is prepared from the following components in percentage by mass: 40 to 60 percent of pymetrozine raw medicine, 5 to 30 percent of dinotefuran raw medicine, 1 to 5 percent of anionic dispersing agent, 5 to 10 percent of liquid wetting agent, 5 to 20 percent of lignin and the balance of filler up to 100%, wherein the lignin is sodium lignin sulfonate and / or calcium lignin sulfonate; the anionic dispersing agent comprises ethoxylated tristyryl phenol potassium phosphate salt. The lignin, the anionic dispersant and the liquid wetting agent can generate a synergistic effect with pymetrozine and dinotefuran raw medicines; therefore, the dispersity and suspension performance of the pymetrozine-dinotefuran dry suspending agent are improved, and the preparation is not prone to precipitation and layering and easy to disintegrate.

Description

technical field [0001] The invention relates to the technical field of pesticide adjuvants, and specifically provides a dry suspension concentrate of pymetrozine and dinotefuran and a preparation method thereof. Background technique [0002] With the environmental and ecological challenges faced by traditional pesticide dosage forms, it is inevitable to develop environmentally compatible pesticides, and it is also a requirement for the development of the environment and sustainable development of pesticides themselves. Dry suspension concentrate is a kind of granular pesticide dosage form product, which is following the suspension concentrate in terms of content, packaging and process. All aspects of cost, quality stability, and use technology are significantly better than the updated products of other dosage forms. The dry suspension has the advantages of fast disintegration, fine dispersion, high suspension rate, and can quickly become a stable suspension when it meets wa...

Claims

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Application Information

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IPC IPC(8): A01N43/707A01N51/00A01N25/14A01P7/04
CPCA01N43/707A01N51/00A01N25/14
Inventor 郑少伟张宗俭卢忠利张鹏魏光
Owner 中化化工科学技术研究总院有限公司
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