RECOVERY OF COPPER FROM SMELTER SLAGS

BRAHM PRAKASH, C V SUNDARAM

Abstract


This paper presents the results of experiments carried out to study the possibilities of recovering copper from the dump smelter slags.Direct leaching of copper with (i) ammoniacal solutions of ammonium carbonate and (ii) neutral ferric sulphate solutions was investigated but the recovery of copper was low. Sulphatising roast gave much better extraction and a recovery of 55-56% was obtained. The non-extractable copper is inferred to be in solid solution in the smelter slag.

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