Brine Refining for Chlor-Alkali Production
chlor-alkali producer in Shandong uses chelating resin S400 for secondary brine refining, selectively adsorbing residual Ca²⁺, Mg²⁺ and Sr²⁺ to achieve Ca²⁺ ≤2μg/L and Mg²⁺ ≤1-5μg/L. Procurement costs reduced by 8%.