Pilot-scale microfluidic solvent extraction of high-value metals
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Date
2022
Authors
Yang, D.
Navvab Kashani, M.
Priest, C.
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Journal article
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Minerals Engineering, 2022; 182(107536):1-7
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Abstract
Numbering-up of processing units is essential for industrial-scale microfluidic solvent extraction. In the present work, a multistream microchip was numbered-up to successfully extract high-value metals (including platinum and rare earth elements) from industrial leach solutions. The platform provides orders of magnitude higher throughput (up to 1 L/h) compared with previously reported stream-based microfluidic solvent extraction, without compromising extraction performance. Extraction efficiency was monitored with increasing throughput. The approach to steady state in a three-stage counter-current extraction circuit was monitored by pH and inductively coupled plasma mass spectrometry of the aqueous raffinate. This pilot-scale microfluidic solvent extraction shows potential for refining high-value (technology or precious) metals and as a laboratory tool for rapid screening of reagents and process conditions.
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Data source: Supplementary material, https://doi.org/10.1016/j.mineng.2022.107536
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Copyright 2022 Elsevier
Access Condition Notes: Accepted manuscript available after 1 July 2024