solution

solution Classification

Salt Chemical Industry and Chlorine Liquefaction

Salt chemical engineering is one of the core branches of the basic chemical industry and serves as a foundational sector of the modern chemical system. Mainland China hosts the world’s largest salt chemical industrial chain, covering a wide range of chemical products such as soda ash, chlor-alkali, PVC, and ammonium chloride. The main raw materials come from sea salt and rock salt extracted from wells, and through processes like refining and electrolysis, the industry has developed an integrated production chain layout.

We have specialized in refrigeration and gas compression technologies for the salt chemical industry for over a decade. Based on typical process routes in this sector, we offer the following key equipment and system solutions:

Low-Temperature Refrigerant Cooling Systems

Operating temperature range from 7°C to -25°C

Compatible with various working fluids such as ethylene glycol solution, calcium chloride solution, and mixed refrigerants

Adapted to heat exchange points in processes such as ammonia-soda process, PVC, and caustic soda production

Chlorine Liquefaction Compressor Units

Using a refrigeration compression-condensation unit and a flooded-type chlorine liquefier, gaseous chlorine at ambient temperature is condensed into liquid via direct evaporative cooling with refrigerant.

Automated control of the chlorine liquefier’s liquid level and temperature ensures high chlorine recovery efficiency and overall system safety.