Compound type circulating water bactericide and preparation method

A technology of circulating water and fungicides, applied in the direction of fungicides, botanical equipment and methods, biocides, etc., can solve the problems of single species of fungicides, large dosage, high cost, etc., and achieve excellent killing effect and killing speed Fast, low cost effect

Inactive Publication Date: 2017-06-13
XINJIANG DELAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commercially available fungicides are still mainly single-component fungicides, which have disadvantages such as large dosage, single variety of fungicides, poor killing effect, and easy to produce drug resistance.
At the same time, there is a large biological toxicity, and the degradation time is long, which is easy to cause secondary environmental pollution
However, fungicides with better effects and low toxicity have the problems of complicated manufacturing process and high cost, which affect their popularization and application.

Method used

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  • Compound type circulating water bactericide and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A compound circulating water bactericide, composed of the following components in parts by weight: 5 parts of 2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile, 1-(2-cyano-2- 5 parts of methoxyimino)-3-ethylurea, 10 parts of dimethylformamide, 5 parts of ethylene glycol, 5 parts of 10% sulfuric acid, 10 parts of manganese dithiocarbamate, 10 parts of dithiocarbamic acid 3 parts of zinc, 57 parts of distilled water.

[0031] The preparation method is as follows:

[0032] S1: Add 2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile into the reaction kettle, then add dimethylformamide and ethylene glycol into the reaction kettle, and stir thoroughly for 15 minutes;

[0033] S2: Add 10% sulfuric acid to the above reaction kettle, and fully stir for 25 minutes;

[0034] S3: Add 1-(2-cyano-2-methoxyimino)-3-ethylurea to the above reaction kettle, and stir for 15 minutes;

[0035] S4: Add manganese dithiocarbamate to the above reaction kettle, and stir for 15 minutes;

[0036] S5: Ad...

Embodiment 2

[0040] A compound circulating water bactericide, which consists of the following components in parts by weight: 15 parts of 2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile, 1-(2-cyano-2- 8 parts of methoxyimino)-3-ethylurea, 25 parts of dimethylformamide, 12 parts of ethylene glycol, 10 parts of 10% sulfuric acid, 15 parts of manganese dithiocarbamate, dithiocarbamic acid 8 parts of zinc, 7 parts of distilled water.

[0041] The preparation method is as follows:

[0042] S1: Add 2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile into the reaction kettle, then add dimethylformamide and ethylene glycol into the reaction kettle, and stir thoroughly for 25 minutes;

[0043] S2: Add 10% sulfuric acid to the above reaction kettle, and fully stir for 15 minutes;

[0044] S3: Add 1-(2-cyano-2-methoxyimino)-3-ethylurea to the above reaction kettle, and stir for 20 minutes;

[0045] S4: Add manganese dithiocarbamate to the above reaction kettle, and stir for 10 minutes;

[0046] S5: Add zi...

Embodiment 3

[0050] A compound circulating water bactericide, composed of the following components in parts by weight: 10 parts of 2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile, 1-(2-cyano-2- 6 parts of methoxyimino)-3-ethylurea, 12 parts of dimethylformamide, 10 parts of ethylene glycol, 8 parts of 10% sulfuric acid, 12 parts of manganese dithiocarbamate, dithiocarbamic acid 5 parts of zinc, 37 parts of distilled water.

[0051] The preparation method is as follows:

[0052] S1: Add 2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile into the reaction kettle, then add dimethylformamide and ethylene glycol into the reaction kettle, and stir thoroughly for 20 minutes;

[0053] S2: Add 10% sulfuric acid to the above reaction kettle, and fully stir for 20 minutes;

[0054] S3: Add 1-(2-cyano-2-methoxyimino)-3-ethylurea to the above reaction kettle, and stir for 17 minutes;

[0055] S4: Add manganese dithiocarbamate to the above reaction kettle, and stir for 13 minutes;

[0056] S5: Add zinc dit...

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Abstract

The invention discloses a compound type circulating water bactericide. The compound type circulating water bactericide is prepared from the following components in parts by weight: 5 to 15 parts of 2,4,5,6-tetrachloro-1,3-phthalonitrile, 5 to 8 parts of 1-(2-cyano-2-methoxyimino)-3-ethylurea, 10 to 25 parts of dimethyl formamide, 5 to 12 parts of ethylene glycol, 5 to 10 parts of 10 percent of sulfuric acid, 10 to 15 parts of manganese dithiocarbamate, 3 to 8 parts of zinc dithiocarbamate and 7 to 57 parts of distilled water. The compound type circulating water bactericide disclosed by the invention has good killing effect on heterotrophic bacteria in circulating water, the killing speed is fast, the killing ability is strong, and the total number of saprophytic bacteria in industrial circulating water can be controlled to be smaller than 1*10<5> or above; meanwhile, since the compound type circulating water bactericide has the advantages of low toxicity, no foam, durable action and low using cost, the compound type circulating water bactericide can be more conveniently popularized and applied in industry.

Description

technical field [0001] The invention relates to the technical field of design and preparation of circulating water treatment chemicals, in particular to a composite circulating water bactericide and a preparation method. Background technique [0002] Commonly used fungicides can be divided into two categories: oxidizing and non-oxidizing fungicides. Oxidizing fungicides such as liquid chlorine, sodium hypochlorite, etc., although they have fast sterilization speed, high efficiency, low treatment cost, and microorganisms are not easy to develop resistance to them, they are also easily affected by organic and reducing substances in water. Disadvantages such as short time, poor dispersion penetration and peeling effect. The biocidal effect of non-oxidizing fungicides has a certain persistence, and has a penetrating and stripping effect on sediments or slime, and is less affected by reducing substances such as hydrogen sulfide and ammonia, and pH. It can complement the advanta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/34A01N37/34A01N47/14A01N25/22A01P1/00A01P3/00A01P13/00C02F1/50
CPCC02F1/50A01N25/22A01N37/34A01N47/14A01N47/34C02F2303/04A01N2300/00
Inventor 潘洪涛周爱珍曾凡付王刚
Owner XINJIANG DELAND
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