Rio Tinto Ltd, Freeport-McMoRan Inc and other global miners, spurred by rising prices and demand, are deploying a raft of new leaching technologies that can extract low concentrations of copper from ...

CUBA, N.M. (KRQE) – The Forest Service has announced plans to clean up the South Ore Pile and the Heap Leach Pile at the Nacimiento Mine near Cuba, New Mexico. The cleanup site is an abandoned copper ...

(Bloomberg) -- Carved into a mountain range in Arizona’s Sonoran Desert, where temperatures often reach 118F (48C), a vast mining complex more than a century old is on the front lines of a race to ...

Heap leach depths have increased from 15 m of ore depth to 150 m since the turn of the century. Higher closure and reclamation costs, as well as a need to decrease the impact on agricultural land, ...