Solid active bromine bactericidal algicide

Abstract

The invention relates to a solid active bromine bactericidal algicide. The bactericidal algicide comprises, by weight, 30-40% of 2-bromine-4,5-dimethoxy phenyl propionitrile, 5-15% of 3-bromine-1-chlorine-5,5-dimethyl hydantoin, 5-15% of dibromo nitrilopropionamide, 15-25% of diquaternary ammonium activating agents, 10-20% of dibromo-2-cyanoacetamide and 5-15% of bronopol. The solid active bromine bactericidal algicide is advantageous in that, first, the bactericidal performances are strong and the bactericidal speed is fast; second, the application range of the pH value is wide; third, the bactericidal algicide is a bactericidal algicide with oxidizability and is effective to all kinds of microorganisms; fourth, the usage concentration is economical, and the bactericidal algicide with low dosage has strong bactericidal activity; fifth, the bactericidal algicide is suitable for ammonia-containing and nitrogen-containing water systems, and the bactericidal efficiency is not lowered with existence of ammonia; sixth, the bactericidal algicide has good intermiscibility and does not affect the using effects of corrosion and scale inhibitors; seventh, the bactericidal algicide has strong exfoliation; eighth, the bactericidal algicide has small impacts on the environment.

Description

Technical field [0001] The invention relates to the technical field of bactericidal and algaecide, in particular to the H-69 new solid active bromine bactericidal and algaecide in which the Yellow River water is applied to the circulating cooling water system as supplementary water and its preparation method Background technique [0002] At present, oxidative bactericidal algaecides have always used chlorine-containing bactericides, and the chlorine-containing bactericides generate hypochlorous acid after hydrolysis in water to achieve the sterilization effect. However, the shortcomings of chlorinated bactericides are also obvious. The effective bactericidal pH range of chlorinated bactericides is narrow. When the PH value of water is 7.5, more than 50% hypochlorous acid is dissociated, and when the pH value is 8.5, more than 90% times Chloric acid is dissociated, and hypochlorite radicals formed by dissociation have little bactericidal properties. [0003] However, bromine-contai...

AI Technical Summary

Problems solved by technology

However, the disadvantages of chlorine-containing fungicides are also obvious. The effective sterilization pH value range of chlorine-containing fungicides is narrow. When the pH value of water is 7.5, more than 50% of hypochlorous acid will dissociate. Chloric acid dissociates, and the hypochlorite formed by dissociation has little bactericidal effect

[0003] However, bromine-containing bactericidal algicides, such as bromochlorohydantoin, have strong bactericidal ability, but they can only inhibit the growth of algae in terms of algae removal performance, and the algae removal performance is poor.