For many years, cyanide has been used to accelerate the recovery of gold from sulfide ore.
High levels of dissolved oxygen are important to the gold leaching process. Since mining sites are generally in remote areas, an AirSep oxygen system is the perfect cost-effective solution as it creates its own oxygen on-demand. No deliveries or cylinders are needed.
A VPSA oxygen system is the best way to introduce oxygen into gold slurry leaching and cyanide decontamination systems. The use of oxygen compounds instead of air as an oxidant increases the leach rate and decreases cyanide consumption. This increase in the dissolved oxygen level of gold bearing slurry enhances the gold cyanidation process, thereby increasing gold recovery rates.
Cyanide is the second highest operating cost behind electric power for the ore crushers. Adding oxygen to the slurry tanks can significantly reduce a mine’s cyanide consumption greatly reducing their operating costs.
AirSep has VPSA installations in Kazakhstan, Canada, and Africa at gold mines.
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