Emamectin benzoate dry suspending agent and preparation method thereof

A technology of emamectin and benzoate, which is applied in the field of pesticides, can solve the problems of poor suspension rate and dispersion drug efficacy, and achieve the effects of improving drug efficacy, good suspension rate, and increased suspension rate

Inactive Publication Date: 2020-12-22
HUIZHOU YINNONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the existing emamectin benzoate dry suspension concentrate st

Method used

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  • Emamectin benzoate dry suspending agent and preparation method thereof
  • Emamectin benzoate dry suspending agent and preparation method thereof
  • Emamectin benzoate dry suspending agent and preparation method thereof

Examples

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preparation example Construction

[0052] In one embodiment, the defoamer is at least one of organosiloxane, organosilicone, AF1501, SAG1572, DDF and CJK. The main component of AF1501 is a modified organopolysiloxane mixture. The main component of SAG1572 is silicone. The main component of DDF is fatty acid salt. The main component of CJK is polyether fatty acid ester. It can be understood that organosiloxane, organosilicone, AF1501, SAG1572, DDF and CJK have a strong effect of eliminating bubbles, and eliminate the foam produced in the preparation process of emamectin benzoate, thereby improving The dispersion and stability of emamectin benzoate were improved. In order to understand emamectin benzoate dry suspension better, the application also provides a preparation method of emamectin benzoate dry suspension. The preparation method of above-mentioned emamectin benzoate dry suspension concentrate comprises the steps: adding dispersant, wetting agent, disintegration aid, anti-decomposition agent and defoam...

Embodiment 8

[0077] Add dispersant, wetting agent, disintegration aid, anti-decomposition agent and defoamer into water and stir to dissolve;

[0078] Continue to add emamectin benzoic acid and stir evenly, then make up to 100kg with calcined kaolin filler, use a homogenizer to carry out mean value dispersion for 25min, and the rotating speed is 1400r / min;

[0079] Use a sand mill to pulverize the above-mentioned substances so that the particle size D98 of each substance is ≤ 2 μm;

[0080] The crushed substances were placed in a pressure spray dryer, spray-dried and sieved at 125° C. to obtain a dry suspension concentrate of emamectin benzoate.

Embodiment 9

[0082] Add dispersant, wetting agent, disintegration aid, anti-decomposition agent and defoamer into water and stir to dissolve;

[0083] Continue to add emamectin benzoic acid and stir evenly, then make up to 100kg with a filler, use a homogenizer to carry out mean dispersion for 30min, and the rotating speed is 1470r / min;

[0084] Use a sand mill to pulverize the above-mentioned substances so that the particle size D98 of each substance is ≤ 3 μm;

[0085] The pulverized substances were placed in a pressure spray dryer, spray-dried and sieved at 130° C. to obtain a dry suspension concentrate of emamectin benzoate.

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Abstract

The invention provides an emamectin benzoate dry suspending agent and a preparation method thereof. The emamectin benzoate dry suspending agent is prepared from the following components in parts by mass: 5 to 15 parts of emamectin benzoate, 20 to 40 parts of a dispersant; 2 to 8 parts of a wetting agent; 1 to 5 parts of a disintegrating aid; 0.5 to 1 part of an anti-decomposition agent; 50 to 70 parts of a filling material; and 0.5 to 1 part of an antifoaming agent. The emamectin benzoate dry suspending agent has the advantages of favorable dispersity, favorable suspension rate and favorable medicinal properties.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a dry suspension of emamectin benzoate and a preparation method thereof. Background technique [0002] At present, Emamectin Benzoate (Emamectin Benzoate, referred to as emamectin benzoate), developed by U.S. Merck & Co, is a novel high-efficiency semi-synthetic antibiotic insecticide synthesized as a raw material with the fermented product abamectin B1. It has stomach toxicity, contact killing and strong penetration, and has the characteristics of ultra-high efficiency, low toxicity, low residue, and pollution-free biological pesticides. It is the mainstream product of insecticides on the market and is widely used in different crops. Emamectin benzoate has the effect of enhancing neuroticism such as glutamic acid and γ-aminobutyric acid (GABA), so that a large amount of chloride ions enter nerve cells, causing cell function loss, disrupting nerve conduction, and larvae in con...

Claims

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Application Information

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IPC IPC(8): A01N25/14A01N25/32A01N43/90A01P7/04
CPCA01N25/14A01N25/32A01N43/90
Inventor 谭葵莫俊锐王爱臣廖联安
Owner HUIZHOU YINNONG TECH
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