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Oxadiargyl and butachlor aqueous emulsion and preparation method thereof

A technology of oxadiazon and butachlor, applied in the field of pesticides, can solve problems such as toxicity, easy explosion, flammability, etc., and achieve the effects of reducing use cost, toxicity and production cost

Inactive Publication Date: 2012-05-02
ANHUI KELIHUA CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a lot of dust in the production and use of wettable powder, and there are a lot of organic solvents in emulsifiable concentrates, which are flammable, explosive, toxic and other unsafe factors.

Method used

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  • Oxadiargyl and butachlor aqueous emulsion and preparation method thereof
  • Oxadiargyl and butachlor aqueous emulsion and preparation method thereof
  • Oxadiargyl and butachlor aqueous emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 5kg of propargyl oxadiazone and 30kg of butachlor, xylene 10kg, emulsifier ethylene oxide propylene block copolymer 8kg, thickener xanthan gum 0.25kg, antifreeze agent ethylene glycol 0.1kg, defoamer 0.1kg, deionized water make up 100kg. Its preparation method:

[0027] (1) Preparation of oil phase

[0028] Put propargyl oxadiazone, butachlor, xylene, ethylene oxide propylene block copolymer into the oil phase preparation kettle, stir, mix and dissolve to make it a uniform oil phase;

[0029] (2) Preparation of water phase

[0030] Put deionized water, ethylene glycol, silicone defoamer, etc. into the water phase preparation kettle, stir and mix to make a uniform water phase;

[0031] (3) Preparation of propargyl oxadiazone and butachlor aqueous emulsion: put the prepared oil phase and water phase into the aqueous emulsion preparation kettle equipped with a high-speed shearing machine, at a speed of 2000-20000 rpm The high-speed shearing time under the conditi...

Embodiment 2

[0033] Take by weighing 10kg propargyl oxadiazone former medicine and 35kg butachlor former medicine, xylene 5kg, solvent naphtha 5kg, emulsifier epoxy ethylene oxide propylene block copolymer 10kg, thickener magnesium aluminum silicate 0.3kg, 1.2kg of antifreeze ethylene glycol, 0.1kg of silicone defoamer, and 100kg of deionized water. Its preparation method:

[0034] (1) Preparation of oil phase

[0035] Put propargyl oxadiazone, butachlor, xylene, ethylene oxide propylene block copolymer into the oil phase preparation kettle, stir, mix and dissolve to make it a uniform oil phase;

[0036] (2) Preparation of water phase

[0037] Put deionized water, ethylene glycol, silicone defoamer, etc. into the water phase preparation kettle, stir and mix to make a uniform water phase;

[0038] (3) Preparation of propargyl oxadiazone and butachlor aqueous emulsion: put the prepared oil phase and water phase into the aqueous emulsion preparation kettle equipped with a high-speed sheari...

Embodiment example

[0040] 1. Pharmacy

[0041] 1.1 Test drug

[0042] 5% propargyl oxadiazone + 30% butachlor aqueous emulsion, produced by Anhui National Pesticide Formulation Engineering Technology Center and Anhui Kelihua Chemical Co., Ltd.

[0043] 1.2 Control drug

[0044] 5% propargyl oxadiazone EC (Shandong Dongtai Agrochemical Co., Ltd.) and 30% butachlor EC (Inner Mongolia Hongyu Pesticide Co., Ltd.).

[0045] In addition, manual weeding and blank control treatments were set up.

[0046] 1.3 Experimental Design of Drugs to be Tested

[0047] Table 1 Experimental design of test agents

[0048]

[0049] 2 community arrangement

[0050] 2.1 Arrangement of plots (other letter codes refer to other experimental treatments)

[0051] A

N

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E

K

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G

H

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B

L

P

B

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P

F

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E

I

U

A

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PUM

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Abstract

The invention discloses an oxadiargyl and butachlor aqueous emulsion and a preparation method thereof. The aqueous emulsion comprises the following components in percentage by weight: 1%-40% of oxadiargyl, 1%-60% of butachlor, 1%-40% of solvent, 1%-40% of emulsifying agent, 0.1%-10% of thickening agent, 1%-5% of antifreezing agent, 0.1%-1.0% of defoamer, 0.1-1% of preservative agent and the balance of de-ionized water. The preparation method comprises the following steps: dissolving oxadiargyl in the solvent and adding a butachlor pharmacological agent, the emulsifying agent and the thickening agent, thus obtaining an oil phase; mixing the antifreezing agent with the de-ionized water to obtain a water phase; and under a high shear condition, slowly adding the oil phase into the water phase or adding the water phase into the oil phase, thus obtaining the oxadiargyl and butachlor aqueous emulsion. In the field experiment, the oxadiargyl and butachlor aqueous emulsion can achieve a better effect of preventing weeds in a paddy field. The oxadiargyl and butachlor aqueous emulsion has the advantages of high efficiency, low toxicity, environmental friendliness and safety for human and livestock.

Description

technical field [0001] The invention relates to an aqueous emulsion of propargyl oxadiazone and butachlor and a preparation method thereof, belonging to the field of pesticides. Background technique [0002] As people's awareness of environmental protection becomes stronger and more eager for high-efficiency, low-toxicity, low-residue, and environmentally-friendly pesticides, pesticide science and technology workers are working day and night to develop new varieties and new formulations of high-efficiency, low-toxicity, and environmentally friendly pesticides. [0003] Oxadiazone propargyl is a high-efficiency broad-spectrum rice field herbicide, which has a remarkable effect on annual grasses, sedges, broad-leaved weeds and some perennial weeds, and has good control effect on the vicious weed Cloverleaf. Mainly used for pre-emergence control of broad-leaved weeds such as rice, potato, sunflower, vegetables, sugar beets, orchards, such as velvetleaf, ghost needle grass, Chen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/824A01N37/26A01N25/04A01P13/00
Inventor 韩谋国戴权王多余吴晓嘉王春徐晓莉刘勤冬秦岭卜训武
Owner ANHUI KELIHUA CHEM
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