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The increase in demand for critical raw materials to attend the green energy sector has highlighted the challenges for the supply chain. Primary and secondary sources have been identified, and processes are being developed. However, novel techniques are necessary for the extraction of critical metals. Supported liquid membranesMembranes bring advances from membraneMembranes and solvent extractionSolvent extraction separation. The present study aims to evaluate supported liquid membranesMembranes on separating Ni-Co and La extraction. Experiments were carried out in batch and the effect of pH and time were evaluated. The effect of gradient- and electric-driven forces were compared. The effect of pH was on the solvent extractionSolvent extraction process, and the electric-driven force increased the ions fluxes but decreased selectivity. A flowchart is proposed for future studies and upscaling of the supported liquid membraneMembranes separation technique.

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Supported Liquid Membranes for Separation of Critical Raw Metals

  • 会议论文

  • 发表日期：

    2025年

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  • Amilton Barbosa Botelho Junior,
  • Guilherme de Freitas Lima Dalvi,
  • Vinícius Smith Cavalcante,
  • Ana Carolina Miyashita,
  • Jorge Alberto Soares Tenório,
  • Denise Crocce Romano Espinosa

摘要

The increase in demand for critical raw materials to attend the green energy sector has highlighted the challenges for the supply chain. Primary and secondary sources have been identified, and processes are being developed. However, novel techniques are necessary for the extraction of critical metals. Supported liquid membranesMembranes bring advances from membraneMembranes and solvent extractionSolvent extraction separation. The present study aims to evaluate supported liquid membranesMembranes on separating Ni-Co and La extraction. Experiments were carried out in batch and the effect of pH and time were evaluated. The effect of gradient- and electric-driven forces were compared. The effect of pH was on the solvent extractionSolvent extraction process, and the electric-driven force increased the ions fluxes but decreased selectivity. A flowchart is proposed for future studies and upscaling of the supported liquid membraneMembranes separation technique.