(PDF) A review of the beneficiation of copper-cobalt-bearing …
here that oxidised Cu – Co ores are the product of extensive weathering of the primary in-depth sulphide ore and host-rock, followed by a re- mobilisation of Cu – Co (Decrée et al., 2010).The H 2 SO 4 leaching e ffi - ciency of oxide-sulphide Cu ores rarely exceeds 75%, mainly due to the di ffi culty of dissolving the sulphides in sulphuric acid at atmospheric …