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Solvent extraction and electrowinning

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Solvent extraction and electrowinning (SX/EW) is a two-stage metallurgy process that first extracts and upgrades copper ions from low-grade leach solutions into a [ ([[Solvent containing a chemical that selectively reacts with and solublizes the copper in the solvent. The copper is extracted from the solvent with strong aqueous acid which then deposits pure copper onto cathodes using an electrolytic procedure (electrowinning).

References

  • Bartos, P.J. (2002). "SX-EW copper and the technology cycle". Resources Policy. 28 (3–4): 85. doi:10.1016/S0301-4207(03)00025-4.
  • Prasad, M. S.; Kenyen, V. P.; Assar, D. N. (1992). "Development of SX-EW Process for Copper Recovery—An Overview". Mineral Processing and Extractive Metallurgy Review. 8: 95. doi:10.1080/08827509208952680.
  • Anyadike, Nnamdi (2002-03-28). Copper: A Material for the New Millennium. p. 43. ISBN 9781855735927.


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