Acid leaching of oxide-sulphide copper ore prior the flotation: A way for an increased metal recovery

Miroslav Sokic, Vladan Milosevic, Velizar Stankovic, Vladislav Matkovic, Branislav Markovic
2015 Hemijska Industrija  
The copper mine Cerovo -East Serbia, as well as the other ore bodies in its vicinity, contains a significant amount of oxide copper minerals in their uper layers (>40%). Processing of such mixed ores by the existing concentration technologies leads to a substantial copper losses (<60%). Reduction of "oxide copper", by acid leaching prior the flotation concentration, can increase the overall copper efficiency up to more than 70% in the single-stage leaching, achieving an efficiency in the
more » ... iency in the flotation concentration stage higher than 75%. Based on the performed experimental results, the flow sheet for processing of the mixed oxide-sulfide copper ore is proposed.
doi:10.2298/hemind140509061s fatcat:wi25t6sgb5b5pdhlof7jsfv4xi