– Highly selective separation and recovery at high purity of copper and zinc from an acid mine drainage stream
– Highly selective separation and recovery at high purity of heavy metals from Berkeley Pit acid mine drainage Superfund site
– Flowsheet for the highly selective separation and recovery of copper, molybdenum, and sulfate ion from water effluent at a copper concentrate filter plant
– Recovery at high purity and polishing of sulfate ion from a filtered aqueous solution at pH of approximately 6
– Highly selective separation of copper, cadmium, and boron from a steam containing these elements plus other impurities