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Chlor alkali industry

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The chemical industry of producing chlorine and caustic soda by electrolysis of saturated salt (NaCl) aqueous solution is called chlor alkali industry. Chlor alkali industry is one of the most basic chemical industries. Its products are not only used in chemical industry itself, but also widely used in light industry, textile industry, metallurgical industry, petrochemical industry and public utilities. At present, there are three main processes: diaphragm, ion-exchange membrane and mercury electrolysis.

Basic reaction principle: 

Anodizing reaction 2Clˉ → Cl2↑ + 2e;

Cathodic reduction reaction 2H2O + 2e → H2↑ + 2OHˉ,Na⁺ +OHˉ → NaOH

Total reaction 2NaCl + 2H2O → 2NaOH + Cl2↑ + H2↑

Application of titanium electrode: 

Carbon anode was used in chlor alkali industry, then artificial graphite anode was used. At the end of 1960s, the invention and wide application of titanium based insoluble DSA electrode made a breakthrough in chlor alkali industry. Polycrystalline platinum group metal oxide coated titanium electrodes, such as Ruti, rusnti, ruirti, have been widely used. 

We have a high level of expertise in the design and manufacture of anodes and cathodes based on titanium or nickel with a precious metal oxide coating.

Our main services include:

Fabrication and repair of DSA ® electrodes;

Manufacture of high performance catalytic coating for anode and cathode;

To produce asbestos free separator for diaphragm cell;

High tech solutions for energy conservation;

Have the ability to renovate and repair all kinds of electrodes on the market;

Technical support and technical assistance.