
COBALT PROCESSING DEVELOPMENTS K G Fisher Bateman ...
The Southern African Institute of Mining and Metallurgy 6th Southern African Base Metals Conference 2011 K G Fisher _____ Page 239 Nickel oxides (laterites) were first processed by hydrometallurgy in 1944 at Nicaro in Cuba (by the Caron Process) and in 1959 the first sulphuric acid pressure leach plant