This is a common
method for recovering gold from ores. After the gold is extracted via
cyanidation (leaching), the solution containing dissolved gold is passed over
activated carbon. The carbon adsorbs the gold ions, and the gold is later
extracted by desorption (using high temperatures or pressure).
Similar to CIL,
this process uses activated carbon to adsorb gold from a slurry of finely
ground ore. The gold is extracted from the carbon in a separate stage, often
involving a treatment like cyanide or heat.
This process
involves passing a solution of gold through columns filled with activated
carbon. Over time, the gold adsorbs onto the carbon particles. This method is
typically used in large-scale operations or for recovery from lower-grade ores.
In addition to
its use in leaching processes, activated carbon can also be part of
electrolytic refining techniques for the recovery of precious metals like
silver, platinum, and gold. It helps in improving the efficiency of the
process.
Velcorbon activated
carbon provides the prime merit in the gold recovery industry because of the
following advantages:
ü High
Adsorption Capacit ü Environmental Benefits
ü Selective
Adsorption ü High Purity of Recovered Gold
ü Cost-Effectiveness ü Reduced Processing Time
ü Reusability ü Scalability
ü Flexibility
and Efficiency ü Improved Recovery from Complex Ores