High-yield selective extraction of metal iron from JSC-1A using molten salt electrolysis
N. Assi, A. Wang, C. J. MacRobbie, J.-P. Hickey, J. Z. Wen | 2026 | Separation and Purification Technology
DOI 10.1016/j.seppur.2025.135614Needs reviewPDF missing
Methods
13molten salt electrolysiselectrochemicalelectrolysiselectrochemicalDecomposition voltage measurementElectrochemicalElectrolysis of JSC-1A in molten CaCl2electrochemicalSEM-EDS analysis of JSC-1A before electrolysismicroanalysisSEM-EDS analysis of electrolytic productsmicroanalysisTheoretical decomposition calculationtheoreticalComparison of JSC-1A with Fe(III) and Fe(II) oxideselectrochemical comparisonScanning electron microscopyMorphology imaging | Benchmarking and comparisonSEM-EDS microanalysisChemical microanalysis | Benchmarking and comparisonX-ray diffractionMineralogical characterization | Benchmarking and comparisonX-ray fluorescenceChemical characterization | Benchmarking and comparisonTEM nanoscale characterizationNanoscale microscopy | Benchmarking and comparison
Properties
22temperature900°C100%electrolytemolten CaCl2100%voltage range1.0 to 1.75 V100%Decomposition voltageVaries with Fe3+ concentration and overpotential90%Iron production yield83.47%100%Current efficiency79.65%100%Electrolysis voltage1.5 V100%Electrolysis temperature900 C100%Electrolysis mediummolten CaCl2100%Electrolysis voltage range1.0 to 1.75 V100%Metal oxide abundance in JSC-1ATable 1100%Iron production yield and current efficiency for JSC-1ATable 3100%Decomposition voltagecalculated using Nernst equation100%crystallite size64 nm95%crystallite size30 nm95%crystallite size25 nm95%phase compositionmetallic iron95%Iron content in JSC-1A8.12 wt%100%Particle morphologyimaged by SEM70%Chemical compositionanalyzed by SEM-EDS70%Mineralogycharacterized by XRD70%Nanophase iron contentcharacterized by transmission electron microscopy70%