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Ion exchange resinsIon exchange resins are widely utilized to remove metalsMetal from aqueous solutions, but their limited selectivity precludes dilute ion extractionExtraction. This study seeks to support in situ valuable metal recoveryMetal recovery techniques by investigating the adsorptionAdsorption performancePerformance of different commercial chelating resins, specifically Iminodiacetic acid (IDA)-type resins, toward copperCopper. In situIn situ leach solutions with different copperCopper concentrations and varying impurityImpurity levels were used in this study. The results showed that IDA resins have high copperCopper selectivity while weak acid cation resin could be used to remove ironIron prior to copper recoveryCopper recovery. These findings provide an opportunity for simultaneous recoveryRecovery of some of the impuritiesImpurity as by-product while achieving higher concentrations of the copperCopper for efficient downstream processes.

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Copper Recovery from Complex In Situ Leach Solutions Using Ion Exchange Resins

  • 会议论文

  • 发表日期：

    2025年

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  • Pavel Spiridonov,
  • Leon Faulkner,
  • Gertude Acquah,
  • Larissa Statsenko,
  • Egor Spiridonov,
  • Richmond Asamoah

摘要

Ion exchange resinsIon exchange resins are widely utilized to remove metalsMetal from aqueous solutions, but their limited selectivity precludes dilute ion extractionExtraction. This study seeks to support in situ valuable metal recoveryMetal recovery techniques by investigating the adsorptionAdsorption performancePerformance of different commercial chelating resins, specifically Iminodiacetic acid (IDA)-type resins, toward copperCopper. In situIn situ leach solutions with different copperCopper concentrations and varying impurityImpurity levels were used in this study. The results showed that IDA resins have high copperCopper selectivity while weak acid cation resin could be used to remove ironIron prior to copper recoveryCopper recovery. These findings provide an opportunity for simultaneous recoveryRecovery of some of the impuritiesImpurity as by-product while achieving higher concentrations of the copperCopper for efficient downstream processes.