Official Commissioning of the Kailin Mine‑Fertilizer Integrated Utilization Project for High‑pH Water from Phosphoric Acid Production

    To address challenges in the harmless treatment of phosphogypsum, optimize the production water balance, and achieve energy conservation, cost reduction and efficiency improvement, the technical renovation project for harmless phosphogypsum treatment and high‑pH water comprehensive utilization at Kailin Mine‑Fertilizer was officially put into operation on August 17. It marks a major phased breakthrough in the company’s technical renovation for phosphogypsum harmless treatment and comprehensive water‑resource utilization.

    Previously, unstable water supply for the third washing circuit of phosphoric acid filters had long hampered stable unit operation and frequently led to low‑pH phosphogypsum, undermining compliance quality for phosphogypsum harmless disposal. To thoroughly resolve such production bottlenecks, the technical team from the Phosphoric Acid Operation Department of Kailin Mine‑Fertilizer conducted in‑depth onsite analysis, accurately identified process deficiencies, and took the lead in advancing the high‑pH water comprehensive‑utilization renovation. Targeted process‑sequence optimization and automated control‑system upgrading were implemented.

    During renovation, technical staff revised equipment control modes to realize refined and stable management of all phosphogypsum indicators, building a solid front‑line defence for phosphogypsum harmless treatment at the production source.

    Going forward, Kailin Mine‑Fertilizer will keep advancing process optimization and technological innovation, further fine‑tune process parameters for high‑pH water utilization, stabilize unit operating conditions, and maximize benefits generated by this renovation. Through refined production, green‑oriented technical upgrades and energy‑saving management, the company will bolster its high‑quality development.