System Flow Chart In a Simple Heap Leaching

In general, processing system gold using heap leaching method can be described as the chart below

Transport of rock minerals on lands open pit using dump trucks

Rock mineral that is ready to be destroyed and soften

Destruction of rock done to get smaller sized rocks. Size obtained usually ± 20mm. And used machines are machines Hammer Mill, Stone Crusher or Jaws Crusher

Placement of material that has been crushed and refined into the foundation leaching

Cyanide solution through water storage tank in the pump and the pipe through the hose and spray the spray solution of sodium cyanide on rock minerals on the leaching.

Recharge cycles in which the metal minerals will drop to flow down through the rock broke into the flow of irrigation. The solution then percolates through the pile and dissolve both the target and other minerals. Leach solution containing dissolved minerals are then collected, processed in a factory process to recover the mineral targets. In heap leaching using carbon adsorption techniques in column Carbon (CIC) in which the solution containing the gold complex flows in tanks containing activated carbon in series and multilevel

In heap leaching using carbon adsorption techniques in column Carbon (CIC) in which the solution containing the gold complex flows in tanks containing activated carbon in series and terraced.

Activated carbon that has been filtered and removed from the vat of mineral-rich bath solution can absorb gold from 100 up to 400 ounces per ton of carbon, the efficiency will drop if content of the solution decreases. Precious metals in the capture of carbon by passing a hot solution of caustic soda and cyanide mixture (1% NaOH and 1% NaCN) Activated carbon can be reused by reactivation in advance using the rotary kiln at a temperature of 730 degrees Celsius for 20 minutes