A kind of diflubenzuron water-dispersible granule and preparation method thereof

A technology of diflubenzuron and dispersible granules, which is applied in botany equipment and methods, insecticides, biocides, etc., can solve the problems of no patent report of diflubenzuron, low drug content, unfriendly environment, etc., and achieve convenient Automatic operation, excellent product quality, environment-friendly effect

Active Publication Date: 2021-06-29
QINGDAO RAINBOW CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main dosage forms of diflubenzuron are low-concentration suspension concentrates, wettable powders, and emulsifiable concentrates. These dosage forms have disadvantages such as low drug content, inconvenient transportation, and unfriendly to the environment. Therefore, it is more conducive to the development of better dosage forms of the drug. Development and use of this drug
Water-dispersible granules are easy to use, do not use organic solvents, and can increase drug content and efficacy.

Method used

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  • A kind of diflubenzuron water-dispersible granule and preparation method thereof
  • A kind of diflubenzuron water-dispersible granule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 160

[0028] Embodiment 1 60% diflubenzuron water dispersible granule

[0029] The formula is: diflubenzuron 60%, dispersant sodium polyacrylate 3.0%, phenolsulfonic acid condensate sodium salt 3.0%, alkylnaphthalenesulfonic acid formaldehyde condensate sodium salt 1.5%, wetting agent sodium dodecylsulfonate 1.5%, sodium alkylnaphthalene sulfonate 1.5%, disintegrant potassium chloride 2.5%, ammonium sulfate 5.0%, CMS-Na 2.5%, chelating agent trisodium aminotriacetate 2.0%, calcined kaolin make up 100%.

[0030]Preparation method: put each component of the above formula into a pre-mixer and mix well (10-20 minutes), carry out ultra-fine airflow pulverization to obtain a fine powder with a particle size of 500-800 mesh, and the powdered material is mixed evenly after a second time (20-20 minutes) 30 minutes), add an appropriate amount of water (5-10%) to the mixer for kneading, granulate through an extrusion granulator, and dry at 70°C in a fluidized bed to prepare 60% diflubenzuron ...

Embodiment 280

[0031] Embodiment 2 80% diflubenzuron water-dispersible granules

[0032] The formula is: diflubenzuron 80%, dispersant sodium polyacrylate 4.0%, phenolsulfonic acid condensate sodium salt 2.0%, alkylnaphthalenesulfonic acid formaldehyde condensate sodium salt 2.0%, wetting agent sodium dodecylsulfonate 1.5%, sodium alkylnaphthalene sulfonate 1.5%, disintegrant potassium chloride 1.0%, ammonium sulfate 2.0%, CMS-Na 1.0%, chelating agent trisodium aminotriacetate 1.5%, calcined kaolin to make up 100%. The preparation method is the same as in Example 1.

Embodiment 3

[0033] Embodiment 3 75% diflubenzuron water dispersible granule

[0034] The formula is: diflubenzuron 75%, dispersant sodium polyacrylate 3.4%, phenolsulfonic acid condensate sodium salt 2.8%, alkylnaphthalenesulfonic acid formaldehyde condensate sodium salt 1.7%, wetting agent sodium dodecylsulfonate 1%, sodium alkylnaphthalene sulfonate 2%, disintegrant potassium chloride 1.0%, ammonium sulfate 3.0%, CMS-Na 2.0%, chelating agent trisodium aminotriacetate 1.0%, calcined kaolin make up 100%. The preparation method is the same as in Example 1.

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Abstract

The invention discloses a diflubenzuron water-dispersible granule and a preparation method thereof, which is composed of the following ingredients in percentage by weight: 5-90% of diflubenzuron, 1-15% of a dispersant, and 1-8% of a wetting agent , disintegrating agent 1-50%, chelating agent 0.5-4%, fillers make up 100%. The invention solves the defects that the wettable powder is easy to generate dust, the suspending agent contains more water medium, and the emulsifiable concentrate contains more organic solvents. The diflubenzuron water-dispersible granule of the present invention has high active ingredient content, high suspension rate, excellent product efficacy, simple preparation method, convenient operation, can realize industrial continuous production, low transportation cost, and is safe and friendly to the environment.

Description

technical field [0001] The invention relates to a diflubenzuron water-dispersible granule and a preparation method thereof, belonging to the technical field of pesticide preparations. Background technique [0002] At present, the technical development directions in the field of pesticide preparation processing are mainly: higher environmental safety, lower transportation costs, less organic solvents or water media, better drug efficacy, and higher content of preparation products. The overall level of research on dosage forms such as high-content environment-friendly water-dispersible granules and dry suspension concentrates in my country is relatively low, while traditional dosage forms such as wettable powders, suspension concentrates, and emulsifiable concentrates are few and far between. There are some unfavorable factors such as being unfriendly to the environment, inconvenient transportation, and organic solvents are harmful to human health. Therefore, it is urgent to in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/34A01N25/14A01P7/04
CPCA01N25/14A01N47/34
Inventor 袁良国李现顺王金刚刘爽段有春魏秀国
Owner QINGDAO RAINBOW CHEM CO LTD
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