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Pesticide water dispersible granule and preparation method thereof

A technology of dispersing granules and dispersing agents, which is applied in the fields of pesticides, botanical equipment and methods, biocides, etc., can solve the requirements for water dispersible granules of ethiprole that have not yet been reported, agglomeration, layered precipitation, and equipment requirements. High-level problems, to achieve the effect of environmental protection and ecological environment quality improvement, high suspension rate and good dispersion

Inactive Publication Date: 2010-01-13
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, all ethiprole preparations registered in my country are 100 g / L suspension concentrate, which requires high equipment and long processing cycle
And there are disadvantages such as agglomeration, stratification, precipitation, and intolerance to storage.
[0005] The product of ethiprole water dispersible granule has not been reported yet

Method used

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  • Pesticide water dispersible granule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: 5% ethiprole water dispersible granules

[0034] Take 5.6Kg of 90% ethiprole original drug, 5Kg of wetting agent sodium lauryl sulfate, 8Kg of dispersant sodium naphthalenesulfonate formaldehyde condensate, 2Kg of disintegrating agent ammonium sulfate, 1Kg of binder carboxymethyl cellulose, stable Agent BHT 2Kg, pottery clay 76.4Kg, after mixing, jet milling, adding 20Kg of water, mixing, kneading, granulating, drying, and sieving to obtain ethiprole water-dispersible granules.

[0035] The main technical indicators of detection are as follows: moisture 0.8%, PH value range 6.5, wetting time 42 seconds, sieve analysis (through 75μm test sieve) 96%, suspension rate 85%, disintegration time 63 seconds, particle size range (0.1 ~ 2.0mm ) 95.5%, persistent foaming volume 18ml, thermal storage stability (54±2°C, 14d) decomposition rate 3.2%.

Embodiment 2

[0036] Example two: 20% ethiprole water dispersible granules

[0037] Take 21.2Kg of 95% ethiprole original drug, 2Kg of wetting agent sodium lauryl polyoxyethylene ether sulfate, 4Kg of wetting agent sodium lauryl sulfate, 6Kg of dispersant calcium lignosulfonate, and 6Kg of dispersant Sodium naphthalenesulfonate 3Kg, disintegrant magnesium chloride 2Kg, bentonite 7Kg, binder dextrin 1Kg, stabilizer triphenyl phosphate 2Kg, bentonite 51.9Kg, ethiprole water-dispersible granules were prepared according to the preparation method of Example 1.

[0038] The main technical indicators of detection are as follows: moisture 0.75%, pH value range 6.8, wetting time 38 seconds, sieve analysis (through 75μm test sieve) 96.4%, suspension rate 89%, disintegration time 46 seconds, particle size range (0.1 ~ 2.0mm ) 96%, persistent foaming volume 15ml, thermal storage stability (54±2°C, 14d) decomposition rate 2.5%.

Embodiment 3

[0039] Embodiment three: 40% ethiprole water-dispersible granules

[0040] Take 44.5Kg of 91% ethiprole original drug, 5Kg of wetting agent sodium lauryl sulfate, 10Kg of dispersant sodium naphthalenesulfonate formaldehyde condensate, 4Kg of disintegrating agent bentonite, 2Kg of binder polyvinyl alcohol, and 2Kg of stabilizer BHT , filler silica 33Kg, according to the preparation method of Example 1, ethiprole water-dispersible granules were obtained.

[0041] The main technical indicators of detection are as follows: moisture 0.7%, pH value range 6.7, wetting time 36 seconds, sieve analysis (through 75μm test sieve) 96.8%, suspension rate 91%, disintegration time 43 seconds, particle size range (0.1 ~ 2.0mm ) 97%, persistent foaming volume 13ml, thermal storage stability (54±2°C, 14d) decomposition rate 2.6%.

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Abstract

The invention relates to pesticide water dispersible granule and a preparation method thereof. The pesticide water dispersible granule is characterized by comprising the following components in percentage by weight: 5-80 ethiprole of , 5-30 additives and the balance of filling. The ethiprole water dispersible granule not only keeps the high insecticidal activity of the ethiprole, but also has the advantages of high content, rapid disintegration, good dispersion and convenient storage and transportation.

Description

technical field [0001] The invention relates to a pesticide preparation and a preparation method thereof, in particular to a pesticide water-dispersible granule and its preparation. Background technique [0002] Ethprole, the common name in English is Ethiprole. It is a new type of pyrazole insecticide with a broad insecticidal spectrum. Interfering with chloride ion channels through γ-aminobutyric acid (GABA), thereby disrupting the normal activities of the central nervous system and killing insects. The drug binds insect GABA chloride channels more tightly than vertebrates. Therefore, it has high selective toxicity. Ethpronil can be used in seed treatments and foliar sprays for up to 21-28 days. It is mainly used to control thrips, stinkbugs, beet leaf moths, aphids, rice planthoppers and locusts, etc. It also shows activity against some whiteflies, especially against rice green bugs which are extremely difficult to control. . Its mechanism of action is different fro...

Claims

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Application Information

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IPC IPC(8): A01N43/56A01N25/12A01P7/04
Inventor 仇晓锋景辉宁昭宇刘晓明
Owner SHENZHEN NOPOSION AGROCHEM
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