– Highly selective separations in a single stage and recovery at high purity (99.95-99.99%) of individual PGM (Pd, Pt, Rh, Ru) from impure HCl solutions containing high levels of Fe, Cu, and/or other precious metals
– Highly selective separation of Rh, Ir, and Ru as a group from impure HCL solutions in two stages
– Highly selective separations of Rh and Ir from each other at high purity from impure HCL solutions in two stages
– Highly selective separation of Rh at high purity from impure HCI solutions containing high levels of Fe and Cu and/or other precious metals in a single stage at either the beginning or end of the PGM refining process
– Highly selective separation and recovery at high purity (99.99%) of Au from a potassium gold cyanide matrix Au plating solution