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Imidacloprid suspension and preparation method thereof

A technology of imidacloprid and suspending agent, which is applied in the field of pesticides and can solve problems such as drug effect and the like

Active Publication Date: 2015-11-11
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

Wang Shumei etc. announced the preparation of 600g / L imidacloprid suspending agent ("Modern Pesticide" , 2013, Volume 12, Issue 5, Pages 25-27, 37), the preparation has stable performance, but no wetting agent is added to the formulation, which will affect the efficacy of the drug, which is well known to those skilled in the art

Method used

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  • Imidacloprid suspension and preparation method thereof
  • Imidacloprid suspension and preparation method thereof
  • Imidacloprid suspension and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1600

[0018] Embodiment 1600g / L imidacloprid suspending agent and preparation

[0019] Formula: 97% imidacloprid technical 48.5g, 6g synthetic dispersant JM, 2g penetrant T, 3g4% xanthan gum hydrogel, 1.0g magnesium aluminum silicate, 0.2g defoamer, 3g urea, 36.3g water;

[0020] Preparation process: According to the ratio in the formula, put water, synthetic dispersant JM, penetrant T, magnesium aluminum silicate, and urea into the high-speed shearing kettle in sequence, stir and shear evenly, add imidacloprid original drug and shear evenly, Then suck the material into the sand mill for sand milling until the detected particle size D[V,90] is less than 5 microns, withdraw it into the shear kettle, add 4% xanthan gum hydrogel to shear evenly, and defoamer Add in batches during the process depending on the foaming situation.

Embodiment 2600

[0021] Embodiment 2600g / L imidacloprid suspending agent and preparation

[0022] Formula: 97% imidacloprid technical 48.5g, 4g synthetic dispersant JM, 2.5g sodium dodecylbenzenesulfonate, 2g4% xanthan gum hydrogel, 2.0g magnesium aluminum silicate, 0.2g defoamer, 3g ethyl Glycol, 37.8g water;

[0023] Preparation process: according to the ratio in the formula, put water, synthetic dispersant JM, sodium dodecylbenzenesulfonate, magnesium aluminum silicate, and ethylene glycol into the high-speed shearing kettle in sequence, stir and shear evenly, add The imidacloprid original drug is cut evenly, and then the material is sucked into a sand mill for sand grinding until the detected particle size D[V,90] is less than 5 microns, then withdrawn into the shearing kettle, and added 4% xanthan gum hydrogel to shear Uniformity is enough, and the defoamer is added in batches during the process depending on the foaming situation.

Embodiment 3600

[0024] Embodiment 3600g / L imidacloprid suspending agent and preparation

[0025] Formula: 97% imidacloprid technical 48.5g, 5g synthetic dispersant JM, 0.5g sodium dodecylbenzenesulfonate, 1g penetrant T, 4g4% xanthan gum hydrogel, 0.2g defoamer, 3g urea, 37.8 g water;

[0026] Preparation process: According to the ratio in the formula, put water, synthetic dispersant JM, sodium dodecylbenzenesulfonate, penetrant T, and urea into the high-speed shearing kettle in sequence, stir and shear evenly, and add the original drug of imidacloprid Cut evenly, and then suck the material into the sand mill for sand grinding until the detected particle size D[V,90] is less than 5 microns, then withdraw it into the shear kettle, add 4% xanthan gum hydrogel and cut evenly , The defoamer is added in batches during the process depending on the foaming situation.

[0027] Comparative Test 1600g / L Imidacloprid Suspending Concentrate

[0028] The 2 g of penetrant T in Example 1 was replaced wit...

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Abstract

The invention belongs to the field of pesticides, and concretely relates to a 600g / L imidacloprid suspension and a preparation method thereof. The above preparation comprises, by mass, (47.0+ / -2.3)% of an effective imidacloprid active compound, 3-6% of a synthetic dispersant JM, 2-4% of a wetting agent, 1-8% of a thickener, 0.1-3% of an antifoaming agent, 1-10% of an antifreeze agent, and the balance of water.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a 600g / L imidacloprid suspension concentrate and a preparation method thereof. Background technique [0002] Suspending agent is mainly composed of dispersant, wetting agent, antifreeze agent, thickener, defoamer, pH regulator, water and so on. The main performance indicators mainly include: fluidity, effective content, suspension rate, dispersibility, viscosity, fineness, pH value, pouring property, long-lasting foaming property and room temperature, cold and hot storage stability, etc. The level of suspension rate directly affects the efficacy of the drug, which is related to the properties of the active ingredients, the dispersant and the wetting agent used. In the same formulation, the use of different dispersants or wetting agents will significantly affect the performance of the formulation. If the active ingredients of the pesticide are not compatible with the dispers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N25/04A01N25/30A01P7/04
Inventor 卢忠利张宗俭
Owner 中化化工科学技术研究总院有限公司
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