The chemical industry that produces chlorine and caustic soda by electrolyzing saturated brine solution is called the chlor-alkali industry. This production technology has a history of more than 100 years. In the process of chlor-alkali production and development, platinum, magnetic iron oxide, carbon, artificial graphite and other electrodes have been tried, but the use effect is not ideal. The use of noble metal mixed oxide-coated titanium electrodes has many advantages. Titanium anode material has the characteristics of strong chemical corrosion resistance, low chlorine overpotential, good electrical conductivity, high mechanical strength, easy processing and low price.
Chlor-alkali industry test data:
1. Weight loss enhanced by chlorine evolution potential: ≤1.13v
2. Polarizability: ≤30mv
3. Enhanced life: ≥3000min
4. Enhanced weightlessness: ≤10mg
performance:
Initial chlorine evolution potential (saturated NaCl, C.D.=3kA/m2): ≤1.10Vvs SCE.
The service life is ≥6 years, and the chlorine evolution potential (C.D.=3kA/m2) during the guarantee period is not greater than 1.172Vvs SCE.
Shape: according to customer's request. Product geometry cage type, single-pole multi-plate anode group or other forms.
advantage:
Can operate at higher current densities
Anode potential is low
low energy consumption
Example: hospital sewage treatment
Hospital diving has a high bacterial content, and direct discharge will pollute the domestic water source. In the past, chlorine or bleaching powder was often used for treatment. For areas without chlorine gas production, chlorine gas relies on transportation, the supply is not timely, and it is not safe. Bleaching powder is easy to decompose, and its disinfection effect will gradually decrease or even fail during storage.
Sodium hypochlorite is a strong oxidant, which can enter into bacteria to destroy protease, and has limited strong bactericidal effect.
Coated titanium electrodes increase current density. In the production of chlor-alkali by the diaphragm method, the working current density of the graphite anode is 8A/dm², and the titanium anode can be doubled to 17A/dm². In this way, under the same conditions of the electrolysis plant and the electrolytic cell, the output can be doubled, improving the The single-slot production capacity effectively improves labor productivity. When electrolysis is carried out at high working current densities, it is more appropriate to use titanium anodes.
In the production of chlor-alkali, after using titanium anode, the product quality is high, the purity of chlorine gas is high, it does not contain CO2, and the alkali concentration is high, which can save heating steam and energy consumption.
Over the years, we have been specialized in anode research and development, production and manufacturing, and our products are exported to many countries around the world. Various series of anodes can be designed and produced according to the actual environmental parameters of different users. You are welcome to visit and negotiate.
Nicole
Company: Baoji Jimiyun Dynamic Co., Ltd
Cuntry:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel:+86 13369210920
Gmail:nicole@jmyunti.com
Website:www.jm-titanium.com
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