In industry, NaOH, Cl2 and H2 are produced by electrolyzing saturated NaCl solution, and a series of chemical products are produced from this, which is called chlor-alkali industry. Chlor-alkali industry is one of the most basic chemical industries, and its products are widely used in light industry, textile, metallurgy, petrochemical industry and public utilities.
Industrial production of caustic soda, chlorine and hydrogen from electrolytic salt solution is one of the important basic chemical industries. China's chlor-alkali industry mainly adopts two production processes.
Chlor-alkali industry:
The chlor-alkali industry in China mainly adopts diaphragm method and ion-exchange membrane method. The main products of chlor-alkali industry include caustic soda, polyvinyl chloride, chlorine and hydrogen. Chlor-alkali products are mainly used to manufacture organic chemicals, paper, soap, glass, chemical fiber, plastics and other fields.
In recent years, chlor-alkali industry in China has developed rapidly. The original chlor-alkali enterprises have expanded their production capacity, and some new enterprises have been put into production. With the rapid increase of production capacity, chlor-alkali industry is accelerating to scale and high-tech content. While the capacity of chlor-alkali industry in China is growing rapidly, the technology has also made great progress.
Reference to the above content: Baidu Encyclopedia-chlor-alkali