BUILDING THE WORLD'S LARGEST HPGR – THE HRC 3000 AT .
BUILDING THE WORLD'S LARGEST HPGR – THE HRC™3000 AT THE MORENCI METCALF CONCENTRATOR ABSTRACT The newly constructed Metcalf Concentrator at Freeport-McMoRan's Morenci site commenced operation in May 2014. This 63,500 tpd (70,000 stpd) expansion includes 's HRC™3000, which is the