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Fungicide for seawater circulating water system and preparation method thereof

A circulating water system and fungicide technology, applied in botany equipment and methods, chemicals for biological control, biocides, etc., can solve the problems of lack of broad-spectrum, high efficiency, high price, and emergence of drug resistance, etc. To achieve the effect of improving the safe working environment, reducing the dosage and eliminating the possibility

Inactive Publication Date: 2018-08-10
SHANDONG TIANQING TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, relatively mature products of non-oxidative bactericidal algicides are mainly produced abroad, and such related products abroad are expensive, and drug resistance will appear after a period of use; there is a lack of broad-spectrum, high-efficiency, and low-toxicity in the existing market. , cost-effective, environmentally friendly fungicide for seawater

Method used

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  • Fungicide for seawater circulating water system and preparation method thereof
  • Fungicide for seawater circulating water system and preparation method thereof
  • Fungicide for seawater circulating water system and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A kind of bactericide for the seawater circulating water system provided by the invention is prepared according to the weight ratio of the following formula components:

[0053] Dibromocyanoacetamide 10 kg,

[0054] Polyhexamethyleneguanidine 15 kg,

[0055] Polycythium Chloride 5 kg,

[0056] Tetradecyl tributyl phosphorus chloride 40 kg,

[0057] Isothiazolinone 15 kg,

[0058] Macrogol 400 5 kg,

[0059] 10 kg of purified water;

[0060] The preparation method of above-mentioned bactericide is:

[0061] First add polyethylene glycol 400, purified water, and dibromocyanoacetamide into the reaction kettle, slowly heat to 50°C during the stirring process, start timing, and stir for 30 minutes. During the stirring period, keep the temperature of the materials in the kettle at 50±2°C. Then add tetradecyltributylphosphine chloride, polyhexamethyleneguanidine, and polycythium chloride, and stir for 30 minutes. During the stirring, keep the temperature of the material ...

Embodiment 2

[0063] A kind of bactericide for the seawater circulating water system of the present invention is prepared according to the weight ratio of the following formula components:

[0064] Dibromocyanoacetamide 15 kg,

[0065] Polyhexamethyleneguanidine 20 kg,

[0066] Polycetamium Chloride 10 kg,

[0067] Tetrahydroxymethylphosphorus chloride 30 kg,

[0068] Isothiazolinone 10 kg,

[0069] Macrogol 400 10 kg,

[0070] 5 kg of purified water;

[0071] The preparation method of above-mentioned bactericide is:

[0072] First add polyethylene glycol 400, purified water, and dibromocyanoacetamide into the reaction kettle, slowly heat to 50°C during the stirring process, start timing, and stir for 30 minutes. During the stirring period, keep the temperature of the materials in the kettle at 50±2°C. Then add tetrakis hydroxymethyl phosphorus chloride, polyhexamethylene guanidine, and polycythium chloride, and stir for 30 minutes. During the stirring, keep the temperature of the mat...

Embodiment 3

[0074] A kind of bactericide for the seawater circulating water system of the present invention is prepared according to the weight ratio of the following formula components:

[0075] Dibromocyanoacetamide 12 kg,

[0076] Polyhexamethyleneguanidine 17 kg,

[0077] Polycythium Chloride 8 kg,

[0078] Dodecyl tributyl phosphorus chloride 35 kg,

[0079] Isothiazolinone 12 kg,

[0080] Macrogol 400 7 kg,

[0081] 9 kg of purified water;

[0082] The preparation method of above-mentioned bactericide is:

[0083] First add polyethylene glycol 400, purified water, and dibromocyanoacetamide into the reaction kettle, slowly heat to 50°C during the stirring process, start timing, and stir for 30 minutes. During the stirring period, keep the temperature of the materials in the kettle at 50±2°C. Then add dodecyl tributylphosphine chloride, polyhexamethylene guanidine, and polycythium chloride, and stir for 30 minutes. During the stirring, keep the temperature of the material in the...

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Abstract

The invention provides fungicide for a seawater circulating water system and a preparation method thereof. The fungicide is prepared from the following components in percentage by weight: 5 to 20 percent of dibromo-2-cyanoacetamide, 10 to 25 percent of polyhexamethylene guanidine, 5 to 15 percent of polixetonium chloride, 20 to 50 percent of quaternary phosphonium salt, 5 to 20 percent of isothiazolinone and 5 to 10 percent of polyethylene glycol 400. The fungicide provided by the invention can sufficiently express a synergistic effect of all the components and can be used for effectively inhibiting and killing shells, heterotrophic bacteria, fungi, iron bacteria, algae and the like.

Description

technical field [0001] The invention belongs to the technical field of water treatment chemicals, in particular to a fungicide used in a seawater circulating water system and a preparation method thereof. Background technique [0002] Among the industrial water consumption, about 70-80% of the water is used for industrial cooling, and the industrial cooling water of some chemical plants even accounts for more than 90-95% of the total water consumption. On the other hand, with the rapid development of industry and agriculture, the demand for fresh water resources continues to increase, resulting in increasingly scarce water resources. In coastal areas and island areas, using seawater as an industrial cooling water source is one of the important ways to solve the serious shortage of fresh water resources in our country. At present, industries such as electric power, petroleum, chemical industry, and iron and steel are also using seawater as circulating cooling water as much a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/20A01N47/44A01N43/80A01N37/34A01P1/00A01P13/00C02F1/50C02F103/08
CPCA01N37/34A01N43/80A01N47/44A01N57/20C02F1/50C02F2103/08C02F2303/04
Inventor 胡新霞梁清雷高云峰王俊明王金明刘晓民张雷张少蔚苗吉宾郑萍
Owner SHANDONG TIANQING TECH DEV
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