gold and silver processes today extract the mineral by use of either
Carbon in Pulp (CIP) or Carbon in Leach (CIL) processes. Here activated
carbon is used to recover gold, which has been dissolved by the addition
The slurry then moves to a series of carbon adsorption tanks where the gold and silver are removed from solution. This is done by feeding carbon through the tanks, in the opposite direction to the slurry flow, with the gold/silver then adsorbing to the carbon granules.
By the time the slurry has reached the final adsorption tank most of the precious metals have been removed. The barren slurry, or tailings, is then pumped to the tailings lagoons. By the time the carbon reaches the first adsorption tank it has recovered most of the gold and silver from solution. This ¡®loaded carbon¡¯ is then pumped to the elution circuit where the gold and silver are washed off with superheated water. The washed solution is passed to the electrowinning circuit for metals recovery.
HENGFLOC 60714, 61418, 62424, 62526 and 63226.