|About this Abstract
||Part C-1: Hydrometallurgy 2018
||Present and Future of Cobre Las Cruces Hydrometallurgical Plant
||Carlos Frias Gomez, Enrique Delgado Palomo, Joaquin Gotor Martinez, Jorge Blanco Aviles, Francisco Sanchez Ruiz
|On-Site Speaker (Planned)
||Carlos Frias Gomez
Las Cruces mine is one of the richest copper deposits in the world including primary volcanogenic massive sulphides and supergene cementation zone and overlying gossan.
Since 2009, Cobre Las Cruces (CLC) benefits the secondary copper sulphides of supergene cementation zone, and the critical issue is that such rich-copper orebody will be exhausted in 2021. As a consequence, the future of Las Cruces mine lies on exploitation of existing primary massive sulphides (polymetallics).
CLC owns a unique hydrometallurgical copper refinery producing over 73,500 tpa Grade A copper cathodes applying direct atmospheric leaching of secondary copper sulphide ores followed by copper solvent extraction and electrowinning. Main technological challenge that CLC is currently facing is to adapt and to expand existing hydrometallurgical plant to create a new “Poly-Metallurgical Refinery” able to produce in situ through hydrometallurgical way the four metals: Cu, Zn, Pb and Ag. Achievements of such ambitious project are presented here.
||Planned: At-meeting proceedings