The CESL Processes
CESL has developed hydrometallurgical processes for:
the production of copper and nickel cathode from their respective concentrates
the economical recovery of gold and silver from the residues
the removal of copper from molybdenum concentrates
The CESL Processes use proven technologies such as pressure oxidation, solvent extraction and electrowinning but combines them in a novel way. The closed-loop process produces no liquid effluents or sulphur dioxide and the only solids produced are gypsum and a leach residue that can be disposed of with associated mill tailings.
The CESL Processes are applicable to a wide variety of base metal sulphide concentrates and can process bulk, lower grade, or impurity-challenged concentrates which may otherwise incur additional smelting costs.
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