Chlor-alkali Chemical Industry

Industry Introduction

The chlor-alkali industry is a basic chemical raw material industry, which occupies an important position in the national economy. Its main products, caustic soda, chlorine, and hydrogen, are widely used in various sectors of the national economy, such as the light industry, chemical industry, prevention, building materials, agriculture, electronics, national defense, military industry, metallurgy, and food processing. Among the three acids and two alkalis of basic chemical raw materials, the chlor-alkali industry occupies two types, caustic soda and hydrochloric acid. Its main raw materials are mercury-containing and non-mercury raw salts. The waste generated includes coal ash slag, waste carbide slag, waste salt mud, mercury-containing waste activated carbon, adsorber activated carbon and waste catalysts, water treatment waste sludge and salt mud sewage and waste gas, etc. Direct discharge will have a greater adverse impact on the environment.

Application Field

Sudong chlor-alkali filter press is a special separation equipment for the chlor-alkali industry, which is mainly used in the production links of chlor-alkali salt mud, carbide slag, pesticide intermediates, dyes, white carbon black, graphite, bleaching powder, titanium dioxide, magnesium salts, barium salts, water purifiers (aluminum sulfate, poly aluminum chloride, basic aluminum chloride), etc.

The plate and frame filter press is used to separate the solid and liquid of the waste salt mud produced in the production process of soda ash, and recover the raw salt and water; the solid and liquid separation of the generated ammonia waste liquid is achieved and the filtrate is recovered and sent to the next process as raw material to produce calcium chloride.

Application advantages

Sudong filter press has a market share of more than 80% in the chlor-alkali chemical industry, especially the patented composite rubber plate filter press. The filter plate of this series of filter presses has good sealing performance, corrosion resistance, aging resistance, high temperature, and high-pressure resistance, stable structural performance, and a service life of more than 5 years. The filter plate skeleton can be re-gelled and recycled many times, and the annual comprehensive maintenance cost is low. It has been used by large domestic and foreign chemical companies such as Beiyuan Group, Yihua Group, and Yili Resources, and has won unanimous praise from users.