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Insoluble polymeric quaternary ammonium salt bactericide, preparation method thereof and sterilization packed bed

A technology of quaternary ammonium salts and fungicides, applied in the field of fungicides and their preparation, can solve the problems of easy foaming, secondary pollution of water bodies, poor reusability, etc., and achieves stable effects, good sterilization performance and short sterilization time. Effect

Inactive Publication Date: 2013-02-13
武汉钢铁有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Quaternary ammonium salt fungicides belong to contact sterilization, which are not affected by water hardness, low cost, low toxicity, and high sterilization efficiency. Foaming, poor reusability, causing secondary pollution of water bodies

Method used

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  • Insoluble polymeric quaternary ammonium salt bactericide, preparation method thereof and sterilization packed bed
  • Insoluble polymeric quaternary ammonium salt bactericide, preparation method thereof and sterilization packed bed
  • Insoluble polymeric quaternary ammonium salt bactericide, preparation method thereof and sterilization packed bed

Examples

Experimental program
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Effect test

preparation example 1

[0032] Soak and wash the sulfonic acid cationic resin with absolute ethanol and 30% dilute sulfuric acid, react with 95% ethanol at 30°C for 24 hours, then add pyridine to make the mass / volume of resin, volume percentage 95% ethanol and pyridine ( g / ml) ratio of 1:5:3, stirred for 8h. The resin was then filtered off, washed repeatedly with 95% ethanol, and dried in vacuo. Then resin:thionyl chloride was stirred at 70°C for 8 hours at a mass / volume (g / ml) ratio of 1:3. After the reaction, the resin was filtered out, washed repeatedly with deionized water, and dried in vacuum.

[0033] The resin, isobutanol and polyethyleneimine were reacted at room temperature for 24 hours at a mass / volume (g / ml) ratio of 1:8:3 to obtain a PI resin system. Then add 1-bromohexane with a weight / volume (g / ml) ratio of 1:1 (1-bromohexane:resin) to the PI resin system obtained after the above reaction, and react at 70°C for 24 h. Continue to add methyl iodide with a weight / volume (g / ml) ratio of ...

preparation example 2

[0035]Soak and wash the sulfonic acid cationic resin with absolute ethanol and 30% dilute sulfuric acid, and react with 95% ethanol at a constant temperature of 50°C for 36 hours, then add pyridine to make the mass / volume of resin, 95% ethanol and pyridine ( g / ml) ratio of 1:6:4, stirred for 10h. The resin was then filtered off, washed repeatedly with 95% ethanol, and dried in vacuo. Then resin:thionyl chloride was stirred at 80°C for 10 h at a mass / volume (g / ml) ratio of 1:4. After the reaction, the resin was filtered out, washed repeatedly with deionized water, and dried in vacuum.

[0036] The resin, isobutanol and polyethyleneimine were reacted at room temperature for 36 h at a mass / volume (g / ml) ratio of 1:10:4. Then add 1-bromohexane to the resin weight / volume (g / ml) ratio of 1:2 (1-bromohexane:resin) to the above reacted solution, and react at 80°C for 36h. Continue to add methyl iodide with a weight / volume (g / ml) ratio of 1:1 (methyl iodide:resin) to the resin, reac...

preparation example 3

[0038] Soak and wash the sulfonic acid cationic resin with absolute ethanol and 30% dilute sulfuric acid, and react with 95% ethanol at a constant temperature of 40°C for 24 hours, then add pyridine to make the mass / volume of the resin, 95% ethanol and pyridine ( g / ml) ratio of 1:8:6, stirred for 12h. The resin was then filtered off, washed repeatedly with 95% ethanol, and dried in vacuo. Then resin:thionyl chloride was stirred at 90°C for 12h at a mass / volume (g / ml) ratio of 1:6. After the reaction, the resin was filtered out, washed repeatedly with deionized water, and dried in vacuum.

[0039] The resin, isobutanol and polyethyleneimine were reacted at room temperature for 48h at a mass / volume (g / ml) ratio of 1:9:6. Then add 1-bromohexane with resin weight / volume (g / ml) ratio of 1:3 (1-bromohexane:resin) to the above reacted solution, and react at 90°C for 48h. Continue to add methyl iodide with a weight / volume (g / ml) ratio of 1:2 (methyl iodide:resin) to the resin, reac...

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Abstract

The invention relates to an insoluble polymeric quaternary ammonium salt bactericide, a preparation method thereof and a sterilization packed bed. The problems that a prior insoluble polymeric quaternary ammonium salt bactericide dissolves in water and bubbles easily, the reusability is poor and water is subjected to secondary pollution are solved. The technical scheme includes that resin is subjected to a swelling reaction, a sulfonic acid group is modified, then the resin is subjected to a graft reaction, and the insoluble polymeric quaternary ammonium salt bactericide is obtained after the quaternized reaction. The bactericide dose not dissolve in water, the secondary pollution can be avoided effectively, and the bactericide is easy to reproduce, capable of being reused, good in sterilization effect, safe, nontoxic, long in service life and suitable for production of the sterilization packed bed sterilizing recycling reclaimed water of metallurgical industry particularly.

Description

technical field [0001] The invention relates to a bactericide, a preparation method thereof, and a bactericidal packed bed using the bactericide. Background technique [0002] Water is an important environmental impact assessment indicator for the sustainable development of the metallurgical industry. The reuse of reclaimed water usually requires a reasonable combination of multiple treatment technologies, that is, the combination of various water treatment methods for advanced treatment of sewage. In order to improve the utilization efficiency of water resources, the reclaimed water must also be disinfected to make its microbial indicators meet the standards. Disinfection methods can be divided into physical and chemical methods. Physical methods mainly include heating, freezing, irradiation, ultraviolet light, ultrasonic and microwave disinfection, etc.; chemical methods use various chemical reagents for disinfection. Commonly used disinfectants include chlorine and its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/00A01N25/10A01N33/12A01P1/00C02F1/50
Inventor 吴高明梅素容夏环张垒严刚杨文枝
Owner 武汉钢铁有限公司
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