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Dimethomorph-mancozeb water dispersible granule and preparation method thereof

A technology of mancozeb and dimethomorph, which is applied in the field of water-dispersible granules of mancozeb and its preparation, can solve problems such as environmental burden and easy drift, and achieve suspension rate High, low cost, stable heat storage effect

Inactive Publication Date: 2009-10-14
BEIJING GREEN AGROSINO BIOENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the traditional use of pesticides, emulsifiable concentrates and powders are mainly used. In the past, when the productivity level was not very high, they played a great role in preventing and controlling pests and diseases. , causing a great burden on the environment in the process of using
Because the powder is easy to drift during use, it will have adverse effects on users and the surrounding environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] Weigh 52.64kg of 95% dimethomorph, 8.89kg of 90% mancozeb, 12kg of sodium phenethylphenol polyoxyethylene sulfate, 5kg of sodium alkyl sulfate, 10kg of ammonium sulfate, 0.2kg of CMC, 0.1kg of citric acid, Kaolin 11.17kg. After mixing evenly, it is pulverized into mother powder by an ultra-fine airflow mill, and the mother powder is mixed evenly with a certain proportion of deionized water, then granulated, dried, sieved and analyzed by sampling, and can be packaged after passing the test. After testing, the active ingredient content is 50% of dimethomorph and 8.0% of mancozeb, and the accelerated heat storage stability is qualified.

example 2

[0028] Weigh 63.2kg of 95% dimethomorph, 10.0kg of 90% mancozeb, 8.0kg of alkylnaphthalene formaldehyde condensate, 5.0kg of basenaphthalenesulfonate formaldehyde condensate, 6.0kg of ammonium sulfate, 0.15kg of CMC, lemon Acid 0.1kg, diatomaceous earth 7.55kg. After mixing evenly, it is pulverized into mother powder by an ultra-fine airflow mill, and the mother powder is mixed evenly with a certain proportion of deionized water, then granulated, dried, sieved and analyzed by sampling, and can be packaged after passing the test. After inspection, the active ingredient content of dimethomorph is 60.0%, and mancozeb is 15.1%, and the accelerated heat storage stability is qualified.

example 3

[0030] Weigh 63.2kg of 95% dimethomorph, 16.7kg of 90% mancozeb, 9.0kg of alkylnaphthalenesulfonate condensate sodium salt, 5.0kg of basenaphthalenesulfonate formaldehyde condensate, 7.0kg of ammonium sulfate, poly Sodium acrylate 0.2kg, citric acid 0.1kg, bentonite 1.2kg. After mixing evenly, it is pulverized into mother powder by an ultra-fine airflow mill, and the mother powder is mixed evenly with a certain proportion of deionized water, then granulated, dried, sieved and analyzed by sampling, and can be packaged after passing the test. After inspection, the active ingredient content of dimethomorph is 60.1%, and mancozeb is 9.1%, and the accelerated heat storage stability is qualified.

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Abstract

The invention relates to a dimethomorph-mancozeb water dispersible granule and a preparation method thereof. The dimethomorph-mancozeb water dispersible granule is characterized by comprising the following components by weight percent: 40-65 of dimethomorph, 8-15 of mancozeb, 1-30 of disintegrant, 1-10 of dispersant, 1-10 of wetting agent, 0.1-2 of caking agent, 0.05-0.3 of stabilizing agent and the balance carrier. The preparation method is as follows: the components are weighed by the mixture ratio and are mixed evenly; active ingredient, accessory ingredient and carrier are added to the mixture; master powder is obtained after grinding the formula components in a superfine mode, and the master powder is extruded, prilled, dried and sievedto obtain dimethomorph-mancozeb dispersible granule. The invention overcomes the deficiencies of missible oil harming the environment and powder, has better wetting property, faster disintegration speed, better dispersivity, higher suspensibility, good geothermal reservoir stability and easy use, and is safe to human beings and environment and easy to control the release and the direction finding.

Description

technical field [0001] The invention relates to a high-efficiency bactericide for preventing and treating fungal diseases, in particular to a water-dispersible granule of mancozeb dimethomorph and a preparation method thereof. Background technique [0002] In the traditional use of pesticides, emulsifiable concentrates and powders are mainly used. In the past, when the productivity level was not very high, they played a great role in preventing and controlling pests and diseases. , causing a great burden on the environment during use. Because the powder is easy to drift during use, it will bring adverse effects to users and the surrounding environment. Water-dispersible granules are a new type of pesticide formulation developed in Europe and the United States in the early 1980s, also known as dry suspension. The International Federation of Pesticide Industry Associations (GIFAR) defines it as: particles used after disintegration and dispersion in water agent. Water-disper...

Claims

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Application Information

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IPC IPC(8): A01N25/12A01N47/14A01N43/84A01P3/00
Inventor 王成周晨光李鹏徐万涛徐踪跃吴俊玲钱丽萍
Owner BEIJING GREEN AGROSINO BIOENG TECH
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