Dinotefuran aqueous suspension agent and its preparation method

A technology of water suspension agent and dinotefuran, applied in the field of pesticides, can solve the problems of solidification, stability over time, layering, inability to use, etc., and achieves the effects of broad application prospects, widening applicable uses, and easy use.

Inactive Publication Date: 2011-11-16
南京扬子鸿利源化学品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mainly in terms of stability over time, serious stratification often occurs, and even pastes and solidifies, making it impossible to use and recycle during processing
Dinotefuran is generall

Method used

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  • Dinotefuran aqueous suspension agent and its preparation method
  • Dinotefuran aqueous suspension agent and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Dinotefuran aqueous suspension, the formula (parts by weight) is: 10 parts of dinotefuran technical, 4 parts of 600P, 1 part of NP, 1 part of aluminum magnesium silicate, 0.2 part of thickener xanthan gum, 5 parts of B Diol, 0.2 parts of silicone defoamer, 0.2 parts of benzoic acid, water to make up 100 parts.

[0029] Add water into the shearing kettle, under shearing, gradually add surfactant and antifreeze, the shearing dissolves completely; first control the temperature 40 ℃ ~ 100 ℃, preheat the surfactant; under shearing, divide into 2 or more batches Add dinotefuran technical, and then add half of the amount of defoamer after completion; when the content of dinotefuran technical is less than 10% or the viscosity is less than 200mpa.s, a thickener can be added, which may increase the grinding time; After uniform shearing, enter the primary sand mill and secondary sand mill for sand grinding until the particle size of the dispersed original drug reaches the design r...

Embodiment 2

[0031] Dinotefuran aqueous suspension, the formula (parts by weight) is: 15 parts of dinotefuran technical, 2 parts of 500#, 3 parts of LX, 5 parts of white carbon black, 0.2 parts of polyvinyl alcohol, 5 parts of urea, 0.2 parts Silicone defoamer, 0.2 parts of benzoic acid, water to make up 100 parts.

[0032] The above formula is prepared according to the method of Example 1.

Embodiment 3

[0034] Dinotefuran aqueous suspension, the formula (parts by weight) is: 25 parts of dinotefuran technical, 3 parts of 600P, 2 parts of polycarboxylate, 2 parts of bentonite, 0.2 part of thickener xanthan gum, 5 parts of antifreeze Agent glycerin, 0.2 parts of antifoaming agent tributyl phosphate, 0.2 parts of Kathon, and water make up 100 parts.

[0035] The above formula is prepared according to the method of Example 1.

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Abstract

The invention discloses a dinotefuran aqueous suspension agent, which is made from the following components of: by weight, 5-40% of a dinotefuran original drug, 0-6% of an auxiliary suspension agent, 2-20% of a surfactant, 0-1% of a thickening agent, 0-1% of an antifoaming agent, 0-1% of an antiseptic, 0.5-5% of an antifreezing agent and 100% of water, wherein the auxiliary suspension agent is white carbon black, bentonite, magnesium aluminum silicate or kaolin; the surfactant is the random combination selected from five components consisting of NP, No. 500, polycarboxylate, TWEEN, 600P and Polyoxyethylene nonyl phenyl ether phosphate salt; the thickening agent is xanthan gum, carboxymethyl cellulose, polyacrylamide or polyvinyl alcohol; the antifoaming agent is an organic silicon antifoaming agent, tributyl phosphate or butanols; and the antifreezing agent is glycol, glycerin, urea, isopropanol or propylene glycol. The preparation provided by the invention accords with the high content and environmental-friendly preparation processing trend, is a biorational pesticide, and has an extensive application prospect.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a dinotefuran aqueous suspension (SC) and a preparation method thereof. Background technique [0002] Dinotefuran is a third-generation neonicotinoid insecticide developed by Mitsui Chemicals. The agent has a wide insecticidal spectrum, excellent systemic penetration, and shows high insecticidal activity at a very low dose. The drug has a wide insecticidal spectrum and can prevent various pests such as Hemiptera, Lepidoptera, Diptera, Orthoptera, Hymenoptera, and Beetles. The agent is very safe to mammals, birds and aquatic organisms, and has no harm to crops. It can be used for many crops such as rice, fruit trees and vegetables. [0003] Modern pesticides are changing rapidly and are developing in the direction of green environmental protection. Suspending concentrate (SC) is one of them. Pesticide suspending concentrate is a formulation with a short history of development...

Claims

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Application Information

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IPC IPC(8): A01N25/04A01N51/00A01P7/04
Inventor 吴进张晶波张建荣王先彬
Owner 南京扬子鸿利源化学品有限责任公司
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