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A suspension containing pyraclostrobin and difenoconazole and its preparation method

A technology of difenoconazole and pyraclostrobin, applied in the field of pesticides, can solve problems such as undisclosed preparation methods of suspending agents, and achieve the effects of overcoming influence and reducing collision probability

Inactive Publication Date: 2017-07-21
北京中农益田化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patents CN 103563938 A, CN 103548857 A, CN 103548857 A, CN 102177902 A, etc. disclose suspensions and formulas containing pyraclostrobin and difenoconazole, but do not disclose detailed preparation methods of suspensions

Method used

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  • A suspension containing pyraclostrobin and difenoconazole and its preparation method
  • A suspension containing pyraclostrobin and difenoconazole and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 5% pyraclostrobin + 40% difenoconazole suspension and its preparation

[0018] 51kg 98.5% pyraclostrobin technical, 409kg 98% difenoconazole technical, 80kg DSC2006, 40kg modified polyether wetting agent W2006, 20kg 4% xanthan gum, 20kg magnesium aluminum silicate, 3kg Foaming agent, 30kg ethylene glycol, 347kg water;

[0019] Put water, dispersant, wetting agent, magnesium aluminum silicate, and antifreeze into the feeding kettle in sequence according to the ratio in the formula, stir to dissolve and disperse, add the original drug and shear at a high speed to make it even, and then sand it with a sand mill , until the detected average particle size is less than 5 microns, add 4% xanthan gum and stir evenly to discharge the material, and the defoamer is added in batches during the process depending on the foaming situation.

Embodiment 2

[0020] Example 2 15% pyraclostrobin + 15% difenoconazole suspension and its preparation

[0021] 152.3kg 98.5% pyraclostrobin technical, 153.1kg 98% difenoconazole technical, 50kg DSC2006, 10kg modified polyether wetting agent W2006, 30kg 4% xanthan gum, 30kg magnesium aluminum silicate, 2kg defoamer, 30kg urea, 542.6kg water;

[0022] Put water, dispersant, wetting agent, magnesium aluminum silicate, and antifreeze into the feeding kettle in sequence according to the ratio in the formula, stir to dissolve and disperse, add the original drug and shear at a high speed to make it even, and then sand it with a sand mill , until the detected average particle size is less than 5 microns, add 4% xanthan gum and stir evenly to discharge the material, and the defoamer is added in batches during the process depending on the foaming situation.

Embodiment 3

[0023] Example 3 20% pyraclostrobin + 20% difenoconazole suspension and its preparation

[0024] 203.5kg 98.5% pyraclostrobin technical, 204.1kg 98% difenoconazole technical, 60kg DSC2006, 30kg modified polyether wetting agent W2006, 15kg 4% xanthan gum, 25kg magnesium aluminum silicate, 1.5kg defoamer, 50kg ethylene glycol, 410.9kg water;

[0025] Put water, dispersant, wetting agent, magnesium aluminum silicate, and antifreeze into the feeding kettle in sequence according to the ratio in the formula, stir to dissolve and disperse, add the original drug and shear at a high speed to make it even, and then sand it with a sand mill , until the detected average particle size is less than 5 microns, add 4% xanthan gum and stir evenly to discharge the material, and the defoamer is added in batches during the process depending on the foaming situation.

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Abstract

The invention belongs to the field of pesticides, in particular to a suspension containing pyraclostrobin and difenoconazole and a preparation method thereof. The preparation is composed of 0-40% pyraclostrobin technical material, 0-40% difenoconazole technical material, 5%-8% polycarboxylate dispersant DSC2006, 1%-4 %Modified polyether wetting agent W2006, 1%~6% thickener, 0.1%~2% defoamer, 1%~6% antifreeze, and the balance is water.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to a suspension containing pyraclostrobin and difenoconazole and a preparation method thereof. Background technique [0002] Pyraclostrobin, also known as pyraclostrobin, is a broad-spectrum fungicide of methyl methoxyacrylate with a pyrazole structure discovered by BASF in 1993. The chemical name is N-methoxy-N-2 -[(N-p-Chlorophenyl)-3-pyrazolyloxymethyl]phenylcarbamate. The pure product is white to light beige odorless crystal, melting point 63.7~65.2℃, vapor pressure (20-25℃): 2.6×10 -8 Pa, solubility (20°C, g / 100mL): distilled water 0.00019, n-heptane 0.37, methanol 10, acetonitrile ≥ 50, toluene, dichloromethane ≥ 57, acetone, ethyl acetate ≥ 65, n-octanol 2.4, DMF43; Octanol / water partition coefficient: logPow4.18 (pH6.5). Pyraclostrobin has a strong inhibitory effect on spore germination and the growth of mycelia in leaves, and has protective and therapeutic activities. Possesse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/24A01N25/04A01P3/00A01N43/653
Inventor 李汉承
Owner 北京中农益田化工有限公司