A patent pending technology is being developed to eliminate the production of greenhouse gas (GHG) emissions during the processing of gold bearing carbon fines. Pyrometallurgy is normally used that involves burning of the carbon at elevated temperatures, which unfortunately has negative environmental implications due to challenges associated with CO2 gas emissions and mercury removal.

The breakthrough technology developed offers high recovery of Au from carbon fines, no GHG emissions and the potential for repurposing of the carbon for battery applications.

A process technology has been developed that has the ability to treat various feed and residue streams in Zn processing with the benefit of not only increasing Zn recovery but also recovering minor metals such as Ag, Cu and Pb which are only partially recovered or lost in conventional operations.