|About this Abstract
||Part C-1: Hydrometallurgy 2018
||Copper Recovery from the Mine Tailings by Combination of Flotation with High‒pressure Oxidative Leaching and Solvent Extraction
||Atsushi Shibayama, Baisui HAN, Kazutoshi HAGA, Zoran STEVANOVIĆ, Radojka JONOVIĆ, Ljiljana AVRAMOVIĆ, Daniela UROSEVIĆ, Yasushi TAKASAKI, Nobuyuki MASUDA, Daizo ISHIYAMA
|On-Site Speaker (Planned)
The aim of this research was to develop a copper recovery process from mine tailings (0.38%Cu) using flotation followed by high‒pressure oxidative leaching (HPOL) and solvent extraction. The results of HPOL using the concentrate of mine tailings obtained by flotation under the optimal conditions of the previous study shown that an efficient copper dissolution of 94.4 % was achieved in an H2O media, while the copper concentration of PLS reached to be 2.9 g/L. The solvent extraction of PLS obtained from the optimal HPOL showed that 91.3 % copper was recovered in stripped solution under the determined optimum conditions, in which the copper concentration achieved to be 44.8 g/L. Finally, a proposed copper recovery process from the mine tailings was developed by combination of flotation, HPOL, and solvent extraction, while a total copper recovery about 70 % was achieved.
||Planned: At-meeting proceedings