A kind of active coating solution for chlorine analysis electrode and preparation method thereof

Abstract

The invention discloses an active coating liquid for chlorine evolution electrodes and a preparation method thereof. The active coating liquid includes a solvent, a solute and a stabilizer. The solvent is composed of n-butanol and isopropyl alcohol, and the solute is composed of trichlorotrichloride. It is composed of ruthenium, chloroiridic acid, tetrabutyl titanate and a chlorine evolution accelerator; the metal ion concentration in the active coating liquid is 0.3-0.4mol / L, and the volume ratio of solvent to stabilizer is 10:1. The invention provides an active coating liquid for a chlorine evolution electrode of a sodium hypochlorite generator that has fast chlorine evolution speed, high electrolysis efficiency, low operating cost, energy saving and environmental protection. Another object of the present invention is to provide a method for preparing an active coating liquid for chlorine evolution electrodes. The preparation method has simple steps, is easy to operate, and is convenient for large-scale industrial production.

Description

technical field [0001] The invention relates to a chlorine analysis electrode, in particular to an active coating solution for the chlorine analysis electrode and a preparation method thereof. Background technique [0002] Water is the source of life. With the continuous pollution and shortage of water resources on the earth, disinfection water treatment is becoming more and more important. At present, in terms of the types of water disinfection, there are chlorine, sodium hypochlorite, chloramine, Ultraviolet lamp disinfection mode; in the above disinfection modes, due to the increase of various organic substances in groundwater quality in recent years, the use of chlorine disinfection will produce mutagenic and carcinogenic organic compounds such as trihalomethanes; chloramine disinfection requires a longer period of time. The contact time and operation are more complicated, and the bactericidal effect of chloramine is poor; while the ultraviolet sterilizing effect is only...

AI Technical Summary

Problems solved by technology

[0002] Water is the source of life. With the continuous pollution and shortage of water resources on the earth, disinfection water treatment is becoming more and more important. At present, in terms of the types of water disinfection, there are chlorine, sodium hypochlorite, chloramine, Ultraviolet lamp disinfection mode; in the above disinfection modes, due to the increase of various organic substances in groundwater quality in recent years, the use of chlorine disinfection will produce mutagenic and carcinogenic organic compounds such as trihalomethanes; chloramine disinfection requires a longer period of time. The contact time and operation are more complicated, and the bactericidal effect of chloramine is poor; while the ultraviolet sterilizing effect is only effective during its irradiation period, once the treated water leaves the sterilizer, it will not have residual disinfection ability. If it is alive, it is easy to adhere to the downstream pipeline and cause secondary pollution; sodium hypochlorite is a strong oxidant that can kill germs in water, and sodium hypochlorite is unstable and easily decomposed into chlorine gas, which diffuses into the atmosphere, which is harmful to water bodies and the environment. The pollution is small, so compared with other disinfection technologies, it has obvious advantages. However, the current sodium hypochlorite generators on the market have too high power consumption and salt consumption, resulting in high operating costs, which seriously restricts its large-scale application. The root cause , because the efficiency of sodium hypochlorite generator electrode chlorine analysis is too low

Images