Composite bactericide containing dialkyl quaternary ammonium salt and its application

A technology of dialkyl quaternary ammonium salt and compound fungicide, which is applied in application, biocide, animal repellent, etc., can solve the problems of high raw material price, high use cost and high product cost, so as to reduce the use cost and solve the The effect of slime deposition

Inactive Publication Date: 2003-07-02
RES INST OF BEIJING YANSHAN PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For such a system, the dialkyl quaternary ammonium bactericide has a better bactericidal effect, but its raw material price is higher, and its product cost is just high, so that its use cost is high. The present invention utilizes the dialkyl quaternary ammonium bactericidal The compounding of common fungicides and common non-oxidizing fungicides skillfully solves the problems of bacterial resistance to common fungicides and the high cost of using dialkyl quaternary ammonium salts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 0.25 mol of tetradecyl tertiary amine, 0.25 mol of n-octane bromide and 75 mL of water into a four-necked flask equipped with a stirrer, reflux condenser and thermometer, raise the temperature to 90°C, and keep the temperature at 90-100°C for 6 hours to obtain Tetradecyl dimethyl octyl ammonium bromide aqueous solution 178 grams, the obtained solution is uniform, stable, transparent, non-layered, wherein the content of tetradecyl dimethyl octyl ammonium bromide is 60.53%, tetradecyl The yield of dimethyl octyl ammonium bromide was 99.3%.

Embodiment 2

[0024] Add 0.25 mol of hexadecyl tertiary amine, 0.25 mol of n-octane bromide and 68 mL of water into a four-necked flask equipped with a stirrer, reflux condenser and thermometer, raise the temperature to 90°C, and keep the temperature at 90-100°C for 4 hours to obtain 177 grams of cetyl dimethyl octyl ammonium bromide aqueous solution, the obtained solution is uniform, stable, transparent, non-layered, wherein the content of cetyl dimethyl octyl ammonium bromide is 64.11%, cetyl dimethyl octyl ammonium bromide The yield of dimethyl octyl ammonium bromide was 99.1%. Example 3

Embodiment 3

[0025] Add 0.25 mol of tetradecyl tertiary amine, 0.25 mol of brominated n-decane and 75 mL of water into a four-necked flask equipped with a stirrer, reflux condenser and thermometer, raise the temperature to 90°C, and keep the temperature at 90-100°C for 8 hours to obtain Tetradecyl dimethyl decyl ammonium bromide aqueous solution 184 grams, the obtained solution is uniform, stable, transparent, non-layered, wherein the content of tetradecyl dimethyl decyl ammonium bromide is 61.92%, tetradecyl The yield of dimethyldecylammonium bromide was 99.5%.

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Abstract

A composite disinfectant containing dialkyl quaternary ammonium salt for disinfecting the circulated cooling water contains at least one dialkyl quaternary ammonium salt disinfectant and at least one non-oxide disinfectant chosen from frequency used quaternary ammonium salt, isothiazolinone, glutaraldehyde, and bithiocyanomethane.

Description

technical field [0001] The present invention relates to a kind of compound fungicide containing dialkyl quaternary ammonium salt and its application, more specifically, the present invention relates to a kind of compound fungicide containing double alkyl quaternary ammonium salt and its application in circulating cooling water system application. technical background [0002] The control of bacteria and algae in the circulating cooling water system is usually controlled by adding fungicides. Commonly used fungicides are divided into two categories, namely oxidizing and non-oxidizing fungicides. Oxidizing fungicides include chlorine gas, sodium dichloroisocyanurate (referred to as chloroquine), trichloroisocyanuric acid (referred to as strong chlorine), active bromine, etc.; non-oxidizing fungicides include dodecyldimethylbenzyl Ammonium chloride ("1227" for short), dodecyl dimethyl benzyl ammonium bromide (bromogeramine), tetradecyl dimethyl benzyl ammonium chloride ("1427...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N33/02
Inventor 郦和生张春原郭红卫樊大勇张伟王岽王骄凌
Owner RES INST OF BEIJING YANSHAN PETROCHEM
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