The chemical industry that produces chlorine and caustic soda by electrolyzing salt (NaCl) aqueous solution is called the chlor-alkali industry, which is the largest department in the modern electrochemical industry. In terms of electricity consumption, the US chlor-alkali industry accounted for 2% of the nation's total electricity generation in 1976. In China, the electricity consumption of the chlor-alkali industry in 1989 was close to 2% of the country's total electricity generation.
The products of the chlor-alkali industry—chlorine, hydrogen and caustic soda are basic chemical raw materials and are widely used in chemical, petrochemical, metallurgy, light industry, textile and civil sectors. By the mid-1980s, the world's annual output of chlorine was 30 million tons and caustic soda was 34 million tons. The chlor-alkali industry occupies an important position in the national economy.
The production of chlorine and caustic soda by electrolysis of salt solution has a history of more than 100 years. In 1851, Watt in the United Kingdom first proposed a patent for the production of chlorine gas by electrolysis of salt water solution. Industrial electrolysis was realized after the invention of the DC generator in 1867. In 1890, Germany established the first KCl electrolysis factory. A factory for producing chlorine gas from brine. Since then, due to industrial needs and technological improvements, the chlor-alkali industry has developed rapidly.
China's chlor-alkali industry was very backward before the founding of New China. In 1929, my country's first chlor-alkali plant, Tianyuan Electrochemical Plant, was established in Shanghai. In 1949, there were only 9 factories, and the annual production capacity of electrolytic caustic soda was about 15,000 tons. After the founding of New China, it developed rapidly. In 1990, the annual output of caustic soda reached 3.35 million tons, ranking third in the world. There are nearly 300 chlor-alkali industry manufacturers, the largest Shanghai Electrochemical Plant, with a caustic soda output of 350,000 tons in 1991. The data provided by the China Chlor-Alkali Industry Association shows that the production capacity of caustic soda in my country reached 16.11 million tons/year in 2005, and it will reach 27.36 million tons/year before 2012. The technical key to producing chlorine and caustic soda by electrolysis of salt solution The yin and anode products are separated, otherwise various side reactions and secondary reactions will occur, which will greatly reduce the yield, reduce product quality, and may explode.
According to the method of product separation, the chlor-alkali industry has formed two different production processes, namely diaphragm electrolysis and mercury electrolysis.
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
