Jiangsu Haifa Machinery Manufacturing Co., Ltd.

The world's first demonstration line for continuous tower extraction and separation of low-grade rubidium and cesium associated with lepidolite, an annual capacity of 500 tons, has recently achieved stable full-capacity operation. The purity of cesium carbonate and rubidium both exceed 99.%. The new process employs tower differential countercurrent extraction and "gas-liquid-liquid" three-phase stripping. The comprehensive yield of cesium exceeds 98%, and that of rubidium exceeds %. The efficiency of a single tower can be equivalent to up to 15 traditional extraction tanks, while significantly reducing extractant consumption and footprint. Key metal hydrometallurgy is advancing toward continuous extraction, recovery of low-grade associated resources, closed-loop circulation, and high-purity separation. Jiangsu Haifa Machinery Manufacturing Co., Ltd. (www.jslgpump.com) can focus on lithium salt, rubidium and cesium, salt lake brine, and hydrometallurgical processes, combining HES chemical process pumps, API 610 OH2, VS6, and leak-free magnetic drive pump technology platforms to carry out corrosion-resistant, low-leakage, and high-efficiency hydraulic designs for extract liquor circulation, stripping liquor transport, saline mother liquor, high-purity media, and corrosive operating conditions. As the synergistic recovery of rubidium and cesium, selective extraction, critical metal resource utilization, and green hydrometallurgy accelerate industrialization, the material compatibility, sealing reliability, and long-term stable operation of process will become important links in the engineering of installations. Chinese literature Institute of Process Engineering, Chinese Academy Sciences: "The World's First Demonstration Line for Continuous Tower Extraction and Separation of Rubidium and Cesium Associated with Lepidolite Fully Reaches Design Capacity," September 2026. Chinese of Sciences: "New Breakthrough Achieved in Efficient and Green Separation Technology for Rubidium and Cesium Resources Associated with China's Characteristic Lithium Ores," September 202. National Science and Technology Information Platform: "Breakthrough Achieved in Efficient Green Separation Technology for Rub and Cesium Resources Associated China's Characteristic Lithium Ores," September 2026. English literature: Ai H. et al., Selective recovery of cesium and rubidium from lepidolite waste liquid after lithium extraction: A novel extraction system of t-BAMBP-TiOA based on affinity regulation, Hydrometallurgy, 2026. Lu Y. et al., Recent in cesium extraction technologies from mineral and brine resources, Hydrometallurgy, 2026.