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Composition containing zinc thiazole particles and preparation method thereof

A composition, the technology of thiazole zinc, applied in the field of pesticides, can solve the problems of increased activity of disease prevention and control, and achieve the effect of improving the control effect and realizing the effect of persistence

Active Publication Date: 2019-01-04
ZHEJIANG XINNONG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the above-mentioned technical problems, the present invention provides the particle size requirements of the original drug composition and the preparation composition of the optimal activity that can solve the active effect of thiazole zinc. The products provided solve the current thiazole zinc Whether the original drug composition of zinc can be applied to the prevention and control of crop diseases and the increase of disease control activity, and at the same time solve the problem of whether the effect of the zinc thiazole original drug composition on the zinc thiazole preparation composition can be improved

Method used

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  • Composition containing zinc thiazole particles and preparation method thereof
  • Composition containing zinc thiazole particles and preparation method thereof
  • Composition containing zinc thiazole particles and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Example 1 Preparation of zinc thiazole technical composition

[0045] Add 0.09 cubic meters of water to a 0.5 cubic meter reactor, add 27Kg of sodium hydroxide, stir and dissolve, add 90Kg of thiadiazole, stir to obtain a completely dissolved A liquid, and put it in another 0.2 cubic meter reactor. , place 0.1 cubic meter of water, and then add 20Kg of zinc sulfate to dissolve in B liquid. Under the state of shearing and stirring liquid A, add liquid B into the reaction kettle containing liquid A at a rate of 0.05 cubic meters per hour, continue shearing and stirring, and maintain the temperature range at 70-80 ° C. From the addition of liquid B, After 3 hours of reaction, the zinc thiazole particles are prepared, and the zinc thiazole particles are filtered, washed with water and dried to obtain the zinc thiazole technical composition particles. The speed of shearing and stirring is adjusted between 100 rev / min and 4000 rev / min to obtain zinc thiazole technical compos...

Embodiment 2

[0049] The direct use effect of embodiment 2 zinc thiazole original drug composition

[0050] The 2% thiazole zinc smear and 20% thiazole zinc water dispersible granules were respectively prepared by using the granules of the thiazole zinc technical composition in the above table 1. Preparation of medicines by mixing medicines. When preparing 2% zinc thiazole smear agent and 20% zinc thiazole water dispersible granules, except that the particle size of the original drug used is different, the other auxiliary ingredients and their contents are the same.

[0051] 2% thiazole zinc smear was used for the prevention and treatment of kiwifruit canker, the plants with disease symptoms were selected for marking, the diseased branches were uniformly scraped, and then treated with the drugs respectively, and a blank control was set, and each treatment was 3 Repeat, apply once every 5 days, and check the control effect 7 days and 14 days after the last dose.

[0052] Use 20% zinc thiaz...

Embodiment 3

[0061] Example 3 The efficacy of zinc thiazole preparation composition

[0062] The technical granules of zinc thiazole in Table 1 were processed into 20% suspending agent, and suspension agents with different particle sizes of zinc thiazole were prepared by adjusting the grinding time and times.

[0063] A1-A15 in Table 1 were respectively prepared into 20% zinc thiazole suspensions, wherein only the samples of A2 zinc thiazoles whose particle size D90 of the technical composition of zinc thiazoles was greater than 60 μm were prepared as samples of zinc thiazoles suspensions, and the zinc thiazoles were prepared as samples of zinc thiazoles. Zinc thiazole sample A12 with the particle size D90 of the original drug composition less than 20 μm was prepared as a zinc thiazole suspension.

[0064] The particle size of the zinc thiazole suspension agent with the particle size in Table 3 below is obtained by grinding the original drug of A2 zinc thiazole.

[0065] Table 3 D90 great...

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Abstract

The invention relates to a composition containing zinc thiazole particles and a preparation method thereof. The composition is composed of particles, the mass fraction of the mass of the zinc thiazolein the particles to the total mass of the particles is larger than or equal to 95%, the grain size D50 value of the particles is <6.0+ / -1.0micrometers>-<26.0+ / -1.0micrometers>, and the grain size D90of the particles is less than or equal to 60.0 micrometers. The composition containing the zinc thiazole particles can be directly used as medicament active ingredients for preventing and treating diseases under the condition that the grain size D90 of an original medicine composition is less than 60.0 micrometers, and can meet the requirements of serving as preparation ingredients for preventingand treating some diseases of some crops without grinding.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to the development of granular pesticide products, in particular, to a composition comprising zinc thiazole particles and a preparation method thereof. Background technique [0002] Zinc thiazole is an important bactericide whose chemical name is 2-amino-5-mercapto-1,3,4-zinc thiadiazole. The structure of zinc thiazole is composed of two groups to kill bacteria. One is the thiazole group, which has no inhibitory effect on bacteria outside the plant, but is an efficient therapeutic agent in the plant. The agent is in the pore tube of the plant, and the bacteria are seriously damaged, and the cell wall is thinned and then disintegrated, resulting in bacterial infection. die. The second is zinc ions, which have both fungicidal and bactericidal effects. The zinc ions in the agent are exchanged with the cations (H+, K+, etc.) on the surface of the cell membrane of the pathogenic bacteria, re...

Claims

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Application Information

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IPC IPC(8): A01N43/824A01N25/04A01P1/00A01P3/00C07D285/125
CPCA01N25/04A01N43/82C07D285/125A01N25/14C07D285/135
Inventor 徐群辉沈海峰李俊张军
Owner ZHEJIANG XINNONG CHEM CO LTD
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