Hydrogen peroxide or Caro’s acid can be more efficient than competing technologies

Cyanide detoxification with peroxygens is a light and flexible solution which can tackle an urgent problem very quickly and can stay in place for the long term to cure it permanently

Competing technologies

• INCO SO2
• Hypochlorite (chlorine based products)
• Biological
• Acidification Volatilisation Regeneration
• Natural degradation

Advantages of hydrogen peroxide

• Minimal investment cost
• Quick implementation
• Non toxic
• No smell
• No toxic by products
• Any H2O2 remaining in the solution will degrade to O2 and H2O
• H2O2 is stable (less than 1% loss per year) if properly stored
• H2O2 is a liquid which mixes easily with other liquids and slurries (no gas handling or mixing  problems)
• No salts produced
• Depending on the process, increase of overall gold recovery

Advantages of Caro’s acid

• Made on site
• Compact and cheap equipment
• Very fast reactions
• High performance in cyanide detoxification
• Good at treating slurries
• Destroys thiocyanates