Caustic Soda Plants are industrial facilities that produce caustic soda (sodium hydroxide, NaOH) and chlorine (Cl2) by electrolyzing brine (sodium chloride, NaCl) solution. Caustic soda and chlorine are important basic chemicals that have various applications in different fields, such as household chemicals, paper, textiles, plastics, metals, food, pharmaceuticals, water treatment, and so on.
There are three main types of electrolysis technologies for caustic soda production: mercury cell, diaphragm cell, and membrane cell. Mercury cell technology uses a mercury cathode and a graphite anode to produce high-purity caustic soda and chlorine. However, this technology is being phased out due to the environmental and health hazards of mercury ¹². Diaphragm cell technology uses a steel cathode and a titanium anode separated by a porous diaphragm to produce caustic soda and chlorine. The diaphragm prevents the mixing of the products, but also causes some salt contamination in the caustic soda. Membrane cell technology uses a steel cathode and a titanium anode separated by a selective ion-exchange membrane to produce high-purity caustic soda and chlorine. The membrane allows only sodium ions to pass through, resulting in low salt and low energy consumption.
Hangzhou ASIA Chemical Engineering Co., Ltd is a leading engineering company that provides advanced technology and engineering design for caustic soda plants in various fields of household chemical, basic chemical, and petroleum and gas. The company has over 40 years of experience in delivering turn-key projects for caustic soda plants, including process design, equipment fabrication, installation, commissioning, operation, and maintenance. The company has cooperated with many international groups such as P&G, Unilever, Henkel, etc., and has supplied caustic soda plants to over 200 customers all over the world.
Hangzhou ASIA Chemical Engineering Co., Ltd offers different solutions for caustic soda plants according to the customer's specific requirements. The company can provide membrane cell technology with the latest chlor-alkali bi-polar membrane electrolyzer technology from INEOS Technologies, AKCC, and CEC. The company can also provide diaphragm cell technology with the advanced chlor-alkali asbestos-free diaphragm electrolyzer technology from INEOS Technologies. The company can also provide mercury cell technology with the reliable chlor-alkali mercury electrolyzer technology from INEOS Technologies. The company can also provide other related plants for caustic soda production, such as sodium sulphate plant, sodium carbonate plant, phosphoric acid plant, etc..
Hangzhou ASIA Chemical Engineering Co., Ltd is committed to the development of new technology and new equipment for caustic soda plants. The company's motto is "Quality is the Corporation's life, technical renovation is the basis for development of the Corporation". The company aims to provide high-quality, high-performance, high-efficiency, and high-durability caustic soda plants for its customers.
