Cobalt extraction from sulfate media with bis(2,4,4-trimethylpentyl)dithiophosphinic acid in the presence of electron donor additives

The possibility of using the HR and L mixtures for cobalt recovery from sulfate solutions (here the HR + TOPO mixture was examined for the kinetic separation of Co and Ni) and from leach liquors of oxidized nickel ores (using the extraction system based on HR and TAA) has been demonstrated.