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The price of gold increased steadily during the last years. But this is not the end and it is expected that this upward trend is going on for the next coming years. For this reason it is in the interest of the gold mining companies to extract the gold as most efficient as possible.
In gold winning, activated carbon is used to extract the gold cyanide complex. Coconut shell based activated carbons are excellently suited to this application because of their extreme hardness, excellent adsorption characteristics and good regenerability.
There are several gold processing operations requiring activated carbons:
CIP (Carbon in Pulp): gold pulp is mixed with sodium cyanide, then is contacted with activated carbon in a series of large agitated adsorption tanks
CIL (Carbon in Leach): similar to CIP but leaching and adsorption occur simultaneously
CIC (Carbon in Column) for Heap leaching: dilute cyanide solution percolate over a heap of crushed ores and is then pumped through activated carbon columns
All require a maximum gold loading with rapid adsorption kinetics.
It is important to choose the most suitable activated carbon for the process of the gold recovery because each loss of activated carbon stands for a reduction of the gold output.
Our activated carbons are manufactured from selected highest quality coconut shells in order to achieve outstanding hardness and attrition resistance.
The highly developed micro porous pore structure suits particularly to provide the best adsorption from aqueous cyanide solutions in CIP, CIL and CIC systems. This serious are processed through vee-wire screens to keep the platelets to the minimum. They are further de-dusted to meet the stringent requirements of our customers.
