China Energy Chemicals Produces and Exports First-grade Sodium Chloride

On May 5, the first batch of high-quality sodium chloride with purity of 99.4% produced by Yulin Chemical Products Co., Ltd. under China Energy Chemicals was shipped for export, marking that the company has embarked on a path of resource-oriented utilization of desalinated and crystallized sodium chloride products.

Stacking sodium chloride products in the warehouse

Sodium chloride is a common kind of raw material for industries such as dyeing, glass, fertilizer, metallurgy, and snow-melting agent manufacturing. The desalinating and crystallizing device of Yulin Chemical Products Co., Ltd. adopts low-temperature critical freezing and vacuum heating desalinating technology, which was first used for coal chemical wastewater treatment in China. Therefore, there are no previous experiences for the company to follow in terms of engineering design and operation. Compared to the relatively mature NF membrane treatment technique, this technology features lower investment and operating costs and shorter treatment process but has higher requirements for design and operation. Since the device was put into operation, technicians and operators in the company have worked to overcome multiple challenges. After one and a half years of efforts, the device can now produce sodium chloride meeting the national standards of refined industrial salt. With purity above 99.4%, whiteness above 86 and content of sulfate ion less than 0.08g/100g, the product meets the quality standard for first-grade industrial salt.