Recovery of rhodium with a novel soft donor ligand using solvent extraction techniques in chloride media

Rhodium remains a high value platinum group metal that has key applications in electronics, catalysts, and batteries. To provide a useful tool for Rh isolation, a novel tridentate ligand utilizing soft N and S donors was designed to specifically extract Rh. The synthesis, complexation kinetics, and liquid–liquid extraction studies were performed to explore the overall process and recovery of Rh from chloride media.