heapleachingin
Heap leaching is a mining technique used to extract metals from low-grade ore by stacking crushed ore on an impermeable liner and applying a leaching solution. It is widely employed for gold and copper because it can treat large volumes at relatively low capital cost, especially when ore quality is insufficient for more intensive milling approaches.
In the process, ore is blasted or excavated, crushed to a suitable size, and placed on a
Key considerations include ore permeability, strength of the pad liner, and the design of irrigation and drainage