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Monatomic copper preparation capable of replacing traditional agricultural copper preparation and preparation method of monatomic copper preparation

A technology of atomic copper and copper preparation, which is applied in the field of pesticides and fungicides, can solve the problems of low utilization rate of copper atoms, unavailability, and excessive heavy metal pollution.

Active Publication Date: 2021-07-06
江苏原植生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In traditional copper preparations, only the copper atoms on the surface can contact and function. Most of the copper atoms are wrapped inside and cannot be used. The utilization rate of copper atoms is very low. After use, residues in the soil are likely to cause excessive heavy metal pollution.

Method used

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  • Monatomic copper preparation capable of replacing traditional agricultural copper preparation and preparation method of monatomic copper preparation
  • Monatomic copper preparation capable of replacing traditional agricultural copper preparation and preparation method of monatomic copper preparation
  • Monatomic copper preparation capable of replacing traditional agricultural copper preparation and preparation method of monatomic copper preparation

Examples

Experimental program
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Effect test

preparation example 1

[0054] The preparation of monatomic powder comprises the following steps:

[0055] S1, preparation of nano-silica carrier by chemical precipitation method:

[0056] S1.1, prepare an ethanol aqueous solution with a volume ratio of 1:8, weigh sodium silicate and dissolve it in an ethanol aqueous solution, configure it to 0.4mol / L, and add 0.5g of cationic surfactant hexadecyltrimethyl to it Ammonium bromide CTAB.

[0057] S1.2, configure 100ml of ammonium chloride solution with a concentration of 1.5mol / L, place the ammonium chloride solution on a constant temperature magnetic stirrer, control the speed at 500rpm, and control the temperature at 40°C. The sodium chloride solution was dripped into the ammonium chloride solution at a rate of 100 μL / s until the pH=8.5 was reached, and the stirring reaction was continued for 1 hour to obtain a precipitate.

[0058] S1.3, the precipitation of gained is centrifugally washed with the aqueous ethanol solution (0.1mol) that adds CTAB, o...

preparation example 2

[0063] The preparation of monatomic powder comprises the following steps:

[0064] S1, preparation of nano-silica carrier by chemical precipitation method:

[0065] S1.1, prepare an ethanol aqueous solution with a volume ratio of 1:8, weigh sodium silicate and dissolve it in an ethanol aqueous solution, configure it to 0.4mol / L, and add 0.5g of cationic surfactant hexadecyltrimethyl to it Ammonium bromide CTAB.

[0066] S1.2, configure 100ml of ammonium chloride solution with a concentration of 1.5mol / L, place the ammonium chloride solution on a constant temperature magnetic stirrer, control the speed at 500rpm, and control the temperature at 40°C. The sodium chloride solution was dripped into the ammonium chloride solution at a rate of 100 μL / s until the pH=8.5 was reached, and the stirring reaction was continued for 1 hour to obtain a precipitate.

[0067] S1.3, the obtained precipitate is centrifuged and washed with ethanol aqueous solution of CTAB to obtain white powder,...

preparation example 3

[0072] The preparation of monatomic powder comprises the following steps:

[0073] S1, preparation of nano-silica carrier by chemical precipitation method:

[0074] S1.1, prepare an ethanol aqueous solution with a volume ratio of 1:8, weigh sodium silicate and dissolve it in an ethanol aqueous solution, configure it to 0.4mol / L, and add 0.5g of cationic surfactant hexadecyltrimethyl to it Ammonium bromide CTAB.

[0075] S1.2, configure 100ml of ammonium chloride solution with a concentration of 1.5mol / L, place the ammonium chloride solution on a constant temperature magnetic stirrer, control the speed at 500rpm, and control the temperature at 40°C. The sodium chloride solution was dripped into the ammonium chloride solution at a rate of 100 μL / s until the pH=8.5 was reached, and the stirring reaction was continued for 1 hour to obtain a precipitate.

[0076] S1.3, the obtained precipitate is centrifuged and washed with ethanol aqueous solution of CTAB to obtain white powder,...

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Abstract

The invention relates to the technical field of pesticide bactericides, in particular to a monatomic copper preparation capable of replacing a traditional agricultural copper preparation and a preparation method of the monatomic copper preparation. A monatomic copper preparation capable of replacing a traditional agricultural copper preparation is prepared from the following raw materials in percentage by mass: 2.5%-90% of monatomic powder, 1%-8% of a dispersing agent, 2%-4% of a wetting agent, 0.5%-5% of a suspending aid, 0.01% of a foam inhibitor, 0.05%-2% of a stabilizer and 0.5%-10% of a carrier. Compared with a traditional copper preparation, the monatomic copper preparation has the advantages that under the condition that the same effect is guaranteed, the copper atom content is reduced by 70% or above, meanwhile, bacterial diseases and fungal diseases of crops can be efficiently prevented and removed, the bactericidal spectrum is expanded, the cost is reduced, copper resources are saved, pollution to the environment is reduced, and the monatomic copper preparation can be applied to diseases of fruit and vegetable crops, can be effectively and uniformly attached to the surfaces of crops, can greatly and uniformly cover prevention and control objects after being applied, and is resistant to rain wash and stable and lasting in pesticide effect.

Description

technical field [0001] The application relates to the technical field of pesticide fungicides, in particular to a single-atom copper preparation that can replace traditional agricultural copper preparations and a preparation method thereof. Background technique [0002] Copper preparations are agricultural fungicides with a long history, such as Bordeaux mixture, cuprous oxide, copper hydroxide, and basic copper sulfate. They can still exert good bactericidal effects after being used for hundreds of years, and are widely used in the prevention and control of various crop diseases , and there is still no evidence of drug resistance. Since 2009, copper-based fungicides have been ranked among the top five fungicides in the world by sales, known as the fifth largest fungicides in the world, and have become one of the most popular fungicides for agricultural users around the world, especially in the European Union In the country, copper preparations are listed as the first fungi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/20A01N25/22A01N25/08A01N25/12A01P1/00A01P3/00
CPCA01N25/08A01N25/12A01N25/22A01N59/20
Inventor 赵超王晶黄红锋吴宇波邹俊童助雄
Owner 江苏原植生物科技有限公司