Hydrometallurgical route to recover nickel, cobalt and cadmium from spent Ni-Cd batteries

▸ Full metals separation in acidic medium. ▸ Cadmium and cobalt recovered by a sequential SX at high free acidity. ▸ Detailed study on cobalt extraction using tertiary amines in HCl medium. ▸ Nickel recovered as oxalate. ▸ Lower generation of final wastes.