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Chlorine evolution accelerator and preparation method thereof

An accelerator and chlorine analysis technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, electrodes, etc., can solve problems such as secondary pollution, high operating costs, and complicated operations, so as to improve equipment production capacity and chlorine analysis efficiency The effect of increasing and improving the efficiency of chlorine analysis

Active Publication Date: 2017-08-11
AWS ENVIRONMENT TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Chlorine evolution accelerator and preparation method thereof
  • Chlorine evolution accelerator and preparation method thereof
  • Chlorine evolution accelerator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0051] In embodiment 1-5, the molar percentage composition of each component ion and ion is shown in the table below:

[0052] Table 1 embodiment 1-5 component and proportioning ratio

[0053] Nd 3+

Eu 3+

Yb 3+

Gd 3+

Dy 3+

Example 1 25mol% 15mol% 60mol% - - Example 2 - - 40mol% 40mol% 20mol% Example 3 - 25mol% - 45mol% 30mol% Example 4 30mol% 30mol% - 20mol% 20mol% Example 5 25mol% 35mol% 25mol% - 15mol%

[0054] - Indicates that it does not contain this component

[0055] Wherein, the neodymium ion of embodiment 1 comes from neodymium chloride, neodymium nitrate, europium ion comes from europium chloride, europium nitrate, ytterbium ion comes from ytterbium sulfate, ytterbium carbonate; The ytterbium ion of embodiment 2 comes from ytterbium nitrate, gadolinium ion comes from chloride Gadolinium, gadolinium nitrate, gadolinium sulfate, and dysprosium ion are from dys...

experiment example

[0058] The chlorine analysis accelerators of Examples 1-5 were introduced into the electrodes of the sodium hypochlorite generator, and the chlorine analysis reaction and the chlorine analysis efficiency of the sodium hypochlorite generator electrodes were tested.

[0059] The experimental steps are as follows:

[0060] (1) Use a titanium plate with a titanium content of 99.9% and a thickness of 1 mm as the substrate. After the titanium plate is sandblasted and polished to remove the oxide layer, it is placed in a NaOH solution with a concentration of 10% and shaken for 30 minutes, and then the oxalic acid with a concentration of 20% The solution etches the titanium plate for 2 hours, and after cleaning, place it in an ethanol solution for use;

[0061](2) Preparation of active coating liquid: use n-butanol: isopropanol = 2:1 mixed solution as solvent, ruthenium trichloride, chloroiridic acid, tetrabutyl titanate, chlorine evolution accelerator as solute, and Concentrated hyd...

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Abstract

The invention discloses a chlorine evolution accelerator and a preparation method thereof. The chlorine evolution accelerator is prepared from three or more of a neodymium compound, a europium compound, an ytterbium compound, a gadolinium compound and a dysprosium compound. The chlorine evolution accelerator is added to an electrode of a sodium hypochlorite generator so that the electrode of the sodium hypochlorite generator is high in chlorine evolution speed, high in electrolysis efficiency and low in operation cost. The invention aims at providing the preparation method of the chlorine evolution accelerator, the reparation method is simple in process, easy to operate, and conductive to large-scale and industrialized production.

Description

technical field [0001] The invention relates to an electrode chlorine analysis accelerator, in particular to a chlorine analysis accelerator 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 effective during ...

Claims

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Application Information

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IPC IPC(8): B01J27/00C25B1/26C25B11/06
CPCB01J27/00C25B1/265C25B11/091
Inventor 倪康祥赵皓翰
Owner AWS ENVIRONMENT TECH LTD
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