Broad spectrum type diquat compound synergist and preparation method thereof

A technology of diquat and synergist, applied in the field of pesticides, can solve the problems that the frost resistance and high temperature resistance need to be improved, the quality stability of the product is affected, and the mother liquor and the content cannot be used universally, so as to achieve good chemical efficacy and expand convenience. , the effect of reducing air bubbles

Inactive Publication Date: 2018-04-13
南京拓际生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Poor applicability: the existing diquat adjuvants have poor universal applicability, and cannot be used universally for various mother liquors and contents, and the general applicability is limited.
[0006] (2) Poor wetting and spreading properties: Diquat water preparations prepared by existing technologies generally do not require wetting, and the wetting time is generally around 180s, and the wetting effect needs to be strengthened.
[0007] (3) The synergistic effect is not significant: some technologies use fatty alcohol polyo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take the following weights: N-methylpyrrolidone 25g; fatty alcohol polyoxyethylene ether sodium sulfate 25g; KY-2089 18g; KY-556 16g; JFC 12g; citric acid 4g. Add 25g of N-methylpyrrolidone and 25g of fatty alcohol polyoxyethylene ether sodium sulfate into a four-neck flask, stir and heat to 70°C; then add 18g of KY-2089; 16g of KY-556; 12g of JFC; stir evenly, Finally, 4 g of citric acid, a pH regulator, was added, neutralized by stirring, cooled and discharged to obtain a broad-spectrum diquat synergist.

[0038] The prepared broad-spectrum diquat synergist has a pH value of 4.5, a viscosity of 120 mPa.s, a surface tension of 50 mN / m, foaming of 25 ml, and an average wetting of 1 m30 s.

Embodiment 2

[0040] Take the following substances by weight: N-methylpyrrolidone 12g; fatty alcohol polyoxyethylene ether sodium sulfate 25g; KY-2089 18g; KY-556 16g; JFC 12g; citric acid 4g. Add 25g of N-methylpyrrolidone and 25g of fatty alcohol polyoxyethylene ether sodium sulfate into a four-neck flask, stir and heat to 80°C; then add 18g of KY-2089; 16g of KY-556; 12g of JFC; stir evenly, Finally, 4 g of citric acid, a pH regulator, was added, neutralized by stirring, cooled and discharged to obtain a broad-spectrum diquat synergist.

[0041] The prepared broad-spectrum diquat synergist has a pH value of 3.8, a viscosity of 30 mPa.s, a surface tension of 20 mN / m, foaming of 25 ml, and an average wetting of 1 m50 s.

Embodiment 3

[0043] Take the following weights: N-methylpyrrolidone 25g; fatty alcohol polyoxyethylene ether sodium sulfate 15g; KY-2089 18g; KY-556 16g; JFC 12g; citric acid 4g. Add 15g of N-methylpyrrolidone and 25g of sodium fatty alcohol polyoxyethylene ether sulfate into a four-necked flask, stir and heat to 80°C; then add 18g of KY-2089; 16g of KY-556; 12g of JFC; stir evenly, Finally, 4 g of citric acid, a pH regulator, was added, neutralized by stirring, cooled and discharged to obtain a broad-spectrum diquat synergist.

[0044] The prepared broad-spectrum diquat synergist has a pH value of 5.2, a viscosity of 18 mPa.s, a surface tension of 9 mN / m, foaming of 28 ml, and an average wetting of 1 m44 s.

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PUM

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Abstract

The invention relates to a broad spectrum type diquat compound synergist and a preparation method thereof. The broad spectrum type diquat compound synergist is prepared by synthesizing a pyrrolidone compound, a surfactant, a wetting agent, a dispersing agent, a penetrating agent, a pH regulator and a defoaming agent. A series of products on a general market can be replaced by the broad spectrum type diquat compound synergist; the universality of the synergist and the convenience of use in charging can be greatly expanded; a prepared diquat aqueous solution product is stable in quality, the weeding effect is obviously improved, the lasting time of the efficacy is long, the application amount of a herbicide can be effectively reduced, the pollution to the environment is reduced, and resources are saved.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a broad-spectrum diquat compound synergist and a preparation method thereof. Background technique [0002] Diquat and paraquat are both bipyridine herbicides. Bipyridine herbicides were developed by ICI Company (now owned by Syngenta) in 1958. It is fast and conducts upward in the asymplast, but does not conduct downward in the phloem, so it cannot kill the lower part of the weed. Two important species of such herbicides are paraquat and diquat. The chemical name of diquat is 1,2-ethylene-2,2-bispyridinium dionium salt, including alginate and dibromide, and other names such as Reglone, Aquacide, etc., and diquatdibromide is mainly used. The acute oral LD50 of this product in rats is 231mg / kg, with moderate toxicity. Bipyridyl herbicides can be quickly and strongly adsorbed by soil colloids, so they lose their activity once they touch the soil, so they are extremely safe for subsequen...

Claims

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Application Information

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IPC IPC(8): A01N25/30A01N43/90A01P13/00
CPCA01N25/30A01N43/90
Inventor 徐卫灿何华雄朱极卞维鑫张琦庞燕军
Owner 南京拓际生物科技有限公司
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