Emamectin benzoate water dispersible granules and preparation method thereof

A technology of disperse granules and emamectin benzoate, which is applied in botany equipment and methods, insecticides, biocides, etc., can solve the problems of high impurities, low suspension rate, low content of original drug, etc., and achieve good suspension performance

Active Publication Date: 2020-05-12
中化化工科学技术研究总院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since emamectin benzoate is a new type of high-efficiency semi-synthetic antibiotic insecticide synthesized from the fermented product abamectin B1, the content of the original drug is not high, and there are many impurities, which can easily lead to unrefined disintegration and a decrease in suspension rate

Method used

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  • Emamectin benzoate water dispersible granules and preparation method thereof
  • Emamectin benzoate water dispersible granules and preparation method thereof
  • Emamectin benzoate water dispersible granules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A dispersible granule of emamectin emamectin saline, composed of the following components in mass percentage: 5.7% of the original medicine of 73% emamectin emamectin salt, 1% polycarboxylate, 1% naphthalenesulfonate, 1.5% dodecylbenzene Sodium sulfonate, 5% modified cyclodextrin, 20% corn starch, 3% light calcium, 62.8% ammonium sulfate.

[0027] The modified cyclodextrin is sulfobutyl ether-β-cyclodextrin.

[0028] The preparation method of above-mentioned emamectin benzoate saline dispersible granule comprises:

[0029] Step 1: Inhale 5.7kg of emamectin benzoate original drug, 20kg of cornstarch, 3kg of light calcium, and 62.8kg of ammonium sulfate into the jet mill for jet milling, D 90 The particle size is less than 10μm.

[0030] Step 2: Combine crushed 5.7kg of emamectin benzoate, 20kg of cornstarch, 3kg of light calcium, 62.8kg of ammonium sulfate, 1kg of polycarboxylate, 1kg of naphthalenesulfonate, and 1.5kg of sodium dodecylbenzenesulfonate 1. Add 5kg of s...

Embodiment 2

[0035] A kind of emamectin emamectin salt dispersible granule, is made up of the component of following mass percentage: 10% 73% emamectin emamin salt former drug, 2% polycarboxylate, 2% naphthalenesulfonate, 2.5% lauryl sulfate Sodium, 10% Modified Cyclodextrin, 15% Corn Starch, 3% Light Calcium, 55.5% Ammonium Sulfate.

[0036] The modified cyclodextrin is mono-6-o-(p-toluenesulfonyl)-β-cyclodextrin.

[0037] The preparation method is the same as in Example 1.

Embodiment 3

[0039] A kind of emamectin emamectin salt dispersible granule, is made up of the component of following mass percentage: 17% 73% emamectin emamectin salt former medicine, 2.5% polycarboxylate, 2.5% naphthalenesulfonate, 3% lauryl sulfate Sodium, 15% Modified Cyclodextrin, 17% Corn Starch, 8% Light Calcium, 35% Ammonium Sulfate.

[0040] The modified cyclodextrin is trimethyl-β-cyclodextrin.

[0041] The preparation method is the same as in Example 1.

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Abstract

The invention relates to an emamectin benzoate water dispersible granule and a preparation method thereof, and belongs to the technical field of pesticide preparation. The emamectin benzoate water dispersible granule is prepared from the following components in percentage by mass: 5 to 30 percent of emamectin benzoate active compound, 1 to 5 percent of anionic dispersant, 1 to 5 percent of solid wetting agent, 5 to 20 percent of modified cyclodextrin and the balance of filler, totaling 100 percent; wherein the modified cyclodextrin is one or more of sulfonate, carboxylate and carbamate by esterifying the 2nd, 3rd and 6th site of cyclodextrin. The water dispersible granule disclosed by the invention has the advantages of good dispersing performance, easiness in disintegration, stable performance and the like.

Description

technical field [0001] The invention relates to the technical field of pesticide preparation, and specifically provides emamectin emamectin salt water dispersible granules and a preparation method thereof. Background technique [0002] Water-dispersible granules are mainly composed of dispersants, wetting agents, defoamers, pH regulators, fillers, etc. The main properties are: effective content, disintegration, dispersibility, suspension rate, persistent foaming, pH value And room temperature, thermal storage stability, etc. The level of disintegration and suspension rate directly affects the efficacy of the drug, which is closely related to the properties of the active ingredients, the dispersant, wetting agent, and filler used. In the same formulation, the use of different dispersants or wetting agents will significantly affect the performance of the formulation. If the active ingredients of pesticides, dispersants, wetting agents, and fillers are not compatible, the perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/14A01N43/90A01P7/04
CPCA01N25/14A01N43/90
Inventor 郑少伟张宗俭姚登峰张鹏卢忠利张春华杨淼魏光
Owner 中化化工科学技术研究总院有限公司
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