Xstrata Developing Lomas Bayas II
Construction of the Lomas Bayas II project is planned to start in the first quarter of 2010 and is expected to be completed in the second quarter of 2012.
Xstrata acquired Lomas Bayas in August 2006 when it acquired Falconbridge. The mine is located in the Atacama desert, 120 km east of the Port of Antofagasta. The mine’s oxide copper ores are low-grade, fast-leaching, and require low acid consumption. Highergrade ore is crushed and leached in heaps. The lowest-grade ore is sent directly from the mine to dump leach. Copper is recovered by solvent extraction and electrowinning to produce high-quality cathodes. Cathodes are transported by truck to Antofagasta for shipment to overseas customers.