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Metso Outotec BIOX technology

BIOX® Process

Optimize overall gold recovery and reduce capital costs

Metso Outotec BIOX® process was developed for the pre-treatment of refractory concentrates ahead of conventional cyanide leaching for gold recovery. As the gold is encapsulated in sulfide minerals such as pyrite and arsenopyrite, the gold is prevented from being leached by cyanide. The BIOX process destroys sulfide minerals and exposes the gold for subsequent cyanidation, thereby increasing the achievable gold recovery.
  • Improves rates of gold recovery    
  • Reduces capital cost    
  • Leverages a long track record of commercial operation and continuous process improvement    
  • Offers robust technology suited for remote locations    
  • Is environmentally friendly
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