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Nicosulfuron-containing dry suspending agent and preparation method thereof

A technology of nicosulfuron and dry suspension, which is applied in the field of dry suspension, can solve the problems of poor stability and disintegration, and low herbicidal effect, and achieve the effects of short disintegration time, excellent stability, and improved herbicidal activity

Inactive Publication Date: 2019-12-20
ANHUI YINONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current dry suspension of nicosulfuron has poor stability and disintegration, and is not effective in weed control

Method used

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  • Nicosulfuron-containing dry suspending agent and preparation method thereof
  • Nicosulfuron-containing dry suspending agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In this example, a dry suspension containing nicosulfuron, in terms of mass fraction, includes the following components: 20% of nicosulfuron, 25% of clopyralid, 0.8% of Herba basilica extract, wetting 1% agent, 1% dispersant, 0.2% defoamer, 0.2% binder, 1% disintegrating agent, and the rest is carrier; the extract of Pachyrhiza sp. The wetting agent is sodium dodecylbenzenesulfonate; the dispersant is phenylethylphenol polyoxyethylene ether; the defoaming agent is organosiloxane; the binder is starch; the disintegrating agent is calcium chloride; The carrier is kaolin.

[0023] A preparation method of a dry suspension containing nicosulfuron, comprising the following steps:

[0024] (1) Mixing nicosulfuron, clopyralid, Herba basilica extract, wetting agent, dispersant, defoamer, binder, disintegrating agent, carrier and water to obtain a slurry;

[0025] (2) Grinding the slurry to a particle size of 2-6 μm and then performing spray granulation to obtain a dry suspensi...

Embodiment 2

[0027] In this example, a dry suspension containing nicosulfuron, in terms of mass fraction, includes the following components: 40% of nicosulfuron, 15% of clopyralid, 1% of Herba basilica extract, wetting 10% agent, 8% dispersant, 4% defoamer, 5% binder, 5% disintegrating agent, and the rest is carrier; the extract of Lemongrass is the whole plant dry powder ethyl acetate and ethanol extraction The wetting agent is sodium lauryl sulfate; the dispersant is sodium lignosulfonate; the defoaming agent is organic silicone; the binder is gum arabic; the disintegrant is urea; the carrier is light calcium carbonate.

[0028] A preparation method of a dry suspension containing nicosulfuron, comprising the following steps:

[0029] (1) Mixing nicosulfuron, clopyralid, Herba basilica extract, wetting agent, dispersant, defoamer, binder, disintegrating agent, carrier and water to obtain a slurry;

[0030] (2) Grinding the slurry to a particle size of 2-6 μm and then performing spray gra...

Embodiment 3

[0032] A kind of dry suspension containing nicosulfuron in the present embodiment, in terms of mass fraction, comprises the following components: 55% of nicosulfuron, 13% of clopyralid, 0.5% of Herba basilica extract, wetting 2% agent, 2% dispersant, 2% defoamer, 3% binder, 7% disintegrating agent, and the balance is carrier; the extract of Pachyrhiza chinensis is extracted from the dry powder of the whole plant of Paeoniae basilica with ethyl acetate and ethanol The wetting agent is sodium alkylnaphthalene sulfonate; the dispersant is sodium alkylnaphthalene sulfonate; the defoaming agent is organosiloxane; the binder is gelatin; the disintegrant is sodium sulfate; the carrier is quicklime.

[0033] A preparation method of a dry suspension containing nicosulfuron, comprising the following steps:

[0034] (1) Mixing nicosulfuron, clopyralid, Herba basilica extract, wetting agent, dispersant, defoamer, binder, disintegrating agent, carrier and water to obtain a slurry;

[0035...

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Abstract

The invention discloses a nicosulfuron-containing dry suspending agent and a preparation method thereof, and belongs to the field of dry suspending agents. The dry suspending agent comprises the following components, in percentages by mass: 20% to 55% of nicosulfuron, 15% to 30% of clopyralid, 0.3% to 1% of a conyza canadensis extract, 1% to 20% of a wetting agent, 1% to 15% of a dispersant, 0.2%to 8% of a defoaming agent, 0.2% to 8% of a binder, 1% to 10% of a disintegrant, and the balance of a carrier. The nicosulfuron-containing dry suspending agent disclosed in the invention has excellentstability and disintegration, and an improved herbicidal effect.

Description

Technical field [0001] The invention relates to the field of dry suspending agents, and in particular to a dry suspending agent containing nicosulfuron and a preparation method thereof. Background technique [0002] Water-dispersible granules, also known as dry suspensions, are a new pesticide formulation and preparation processing technology successfully developed in the 1980s. It is a solid preparation that can be dispersed in water. At the Sixth International Conference on Pesticide Chemistry in 1986, it was considered an ideal pesticide formulation that has all the advantages of granules and high dispersion properties of suspension agents. It will be one of the important development trends in pesticide formulation processing. Dry suspension agents do not require solvents. The processed granules are easy to flow freely, have a certain strength and are easy to disintegrate. After dispersion, the suspension rate is high without the generation of dust. It is safe to use and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/12A01N47/36A01N43/40A01N25/14A01P13/00
CPCA01N25/14A01N43/40A01N47/36A01N65/00A01N65/12
Inventor 徐益峰方润徐金娇宁早霞刘明浩吴兵王震张帆袁成军季汪洋安林峰
Owner ANHUI YINONG CHEM
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