Standard and custom sizes, to suit every setting
Resistant to high temperatures and corrosion
Effective lower-temperature operation
Robust design
Keeps operators safe
Activated carbon regeneration for superior gold and silver recovery
FLSmidth is a global leader in precious metals extraction equipment and systems. Our activated carbon regeneration kilns have been refined through innovative thinking for over 20 years. We simplify the carbon regeneration process.
Carbon regeneration to maintain a healthy carbon circuit
Activated carbon is a very effective concentrator of gold and silver owing to its high adsorption capacity in cyanide leach circuits, but it is expensive.
In the adsorption process, carbon activity and adsorption capacity are decreased through organic fouling contamination with fuel and lubricants from processing equipment, flotation reagents, grinding aids, viscosity modifiers, humic acids and plastics.
Organic fouling slows the gold and silver adsorption rate and decreases the metal loading capacity of the carbon. Precious metals losses occur as available gold and silver cyanide ions are not captured by the carbon. Remaining precious metal inventory builds within the circuit leading to higher soluble losses to tailings.
That’s where our carbon regeneration kilns can restore activity of fouled or ‘contaminated’ carbon for a far more sustainable approach versus purchasing new activated carbon. Eliminate the cost of disposing of fouled carbon which still has useful life, all while incurring fewer greenhouse gas emissions.