A new technology created to significantly improve the recovery of copper from solvent extraction organics.

APPLICATION

  • Acid sulfate copper leach process liquors

  • Use a soluble pH modifier that produces no precipitate in mixers

  • Indirectly uses the cheapest alkali – limestone

BENEFITS

  • Neutralise acid generated in the extraction mixer-settlers to drive higher copper extraction

  • Higher reagent loading

  • No complex pH control necessary

  • Easily incorporated in a “standard” Cu-SX flowsheet

  • Simple retrofit to an existing plant

Final raffinate concentration reduced from approx. 420 ppm Cu to <50 ppm Cu with the addition of pH modifier.

STATUS

Patent lodged Application# PCT/AU2014/001024

COPPER

© 2018 STRATEGIC METALLURGY PTY LTD

  • Twitter - White Circle