Chlorantraniliprole aqueous-dispersion nano composite granule and preparation method thereof

A technology of chlorantraniliprole and nano-composite, applied in the field of pesticides, can solve the problem of single dosage form, achieve the effect of reducing dosage, optimizing microstructure and good stability

Inactive Publication Date: 2015-05-27
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chlorantraniliprole is known internationally as a new generation of high-efficiency insecticide. Currently, most of chlorantraniliprole in the market is a suspension with a single dosage form, and there is still room for improvement in the slow release and stability of the drug effect.

Method used

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  • Chlorantraniliprole aqueous-dispersion nano composite granule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Chlorantraniliprole water-dispersible nanocomposite granules are prepared by the following method: Accurately weigh 20.0 kg of chlorantraniliprole loaded on nano sepiolite according to the formula requirements, and the wetting agent is 1.0 kg of alkylnaphthalene sulfonic acid Condensation polymer TERSPERSE2425, the dispersant is 10.0g of sodium lignosulfonate, the disintegrant is 1.0kg of urea, the filler is 67.9kg of white carbon black, add 15-20kg of water and mix it evenly to obtain a water suspension system, Grind to a fineness of 100-600nm with an ultra-fine wet grinder, add a certain amount of water and 0.1kg of binder to obtain a slurry for spraying, and then send the slurry to a drying tower for spray drying at 130°C Granulation, the residual moisture content of the product after granulation is 0.5-1.0wt%, and finally the material is combined and screened by a vibrating fluidized bed and a vibrating sieve to obtain chlorantraniliprole water-dispersed nanocomposit...

Embodiment 2

[0034] Chlorantraniliprole water-dispersible nanocomposite granules are prepared by the following method: Accurately weigh 35.0 kg of chlorantraniliprole loaded on nano-calcium carbonate according to the formula requirements, and the wetting agent is 2.5 kg of fatty alcohol polyoxyethylene Ether, the dispersant is 5.1kg of alkylnaphthalene sulfonate sodium formaldehyde condensate Morwet D-425, the disintegrant is 2.7kg of polyethylene glycol, 3.2kg of soluble starch, the filler is 24.1kg of bentonite, 24.5kg of Kaolin, add 15-20kg of water and mix it evenly to obtain a water suspension system, then grind it to a fineness of 100-600nm with an ultra-fine wet grinder, add a certain amount of water and 2.9kg of stabilizer to obtain a spray Slurry, then the slurry is sent to the drying tower, spray-dried and granulated at 140°C, the residual moisture content of the product after granulation is 0.5-1.0wt%, and finally the material is jointly screened by a vibrating fluidized bed and ...

Embodiment 3

[0038] Chlorantraniliprole water-dispersible nanocomposite granules are prepared by the following method: Accurately weigh 28.0 kg of chlorantraniliprole loaded on nano-diatomaceous earth according to the formula requirements, and the wetting agent is 1.0 kg of sulfonate Anionic surfactant TERWET1004, 2.0kg of alkylbenzene sulfonate as dispersant, 16.3kg of silica gel as disintegrating agent, 49.3kg of bentonite as filler, add 15-20kg of water and mix evenly to obtain a water suspension system , and then use an ultra-fine wet grinder to grind to a fineness of 100-600nm, add a certain amount of water and 3.4kg of synergist to obtain a slurry for spraying, and then send the slurry to a drying tower for drying at 160°C Spray drying and granulation, the residual moisture content of the product after granulation is 0.5-1.0wt%, and finally the material is screened by a vibrating fluidized bed and a vibrating sieve to obtain chlorantraniliprole water-dispersed nanocomposite granules w...

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Abstract

The invention discloses a chlorantraniliprole aqueous-dispersion nano composite granule and a preparation method thereof. The chlorantraniliprole aqueous-dispersion nano composite granule is prepared from the following raw materials in percentage by weight: 20-50% of chlorantraniliprole loaded on a nano carrier, 1.0-10.0% of a wetting agent, 2.0-10.0% of a dispersing agent, 1.0-10.0% of a disintegrating agent, 0.1-5% of other auxiliaries, and the balance of a filler. The preparation method for the chlorantraniliprole aqueous-dispersion nano composite granule adopts a wet-process process to prepare a disintegrating and dispersing type aqueous-dispersion granule through an equal-grain-size spraying and pelletizing technology. The chlorantraniliprole aqueous-dispersion nano composite granule prepared by the preparation method disclosed by the invention overcomes the damages of a conventional emulsion oil type preparation to an environment, is good in wetting performance, high in disintegrating speed, good in dispersion, high in suspending rate, good in thermal stability, used for farmland pest control, good in slow release, low in loss rate, small in residues, low in toxicity and suitable for large-scale popularization and application.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a water-dispersed nanocomposite granule of chlorantraniliprole and a preparation method thereof. Background technique [0002] Chlorantraniliprole, the chemical name is 3-bromo-N-[4-chloro-2-methyl-6-[(methylaminocarboxamido)benzene]-1-(3-chloropyridin-2-yl) -1-hydrogen-pyridine-5-carboxamide is a new type of o-formamidobenzamide insecticide developed by DuPont Company of the United States. The insecticide is an insect ryanodine receptor inhibitor, and exhibits insecticidal effect mainly by inducing intracellular calcium ion release regulated by the insect ryanodine receptor. Chlorantraniliprole has contact and stomach poisoning effects, and exhibits high efficiency, spectrum, and long-lasting effects. It can be used to control a variety of Lepidoptera pests, and its control effect is significantly better than other commercial insecticides currently used in produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/56A01N25/14A01P7/04
Inventor 夏涛任红轩黄进刘扬石晓敏
Owner WUHAN UNIV OF TECH
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