Journal
HYDROMETALLURGY
Volume 175, Issue -, Pages 232-239Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.hydromet.2017.12.005
Keywords
Glass industry scrap; Recovery; Platinum; Rhodium; Cyanex 923; Solvent extraction
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Funding
- Global Excellent Technology Innovation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry &Energy, Republic of Korea [20165010100810]
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Solvent extraction experiments were conducted to recover pure Pt(IV) and Rh(III) from the chloride leach liquor of glass industry scraps containing a small amount of Fe(III) using Alamine 336, TOPO, TBP and Cyanex 923. The Pt(IV) and Fe(III) were selectively extracted by Cyanex 923 leaving Rh(III) in the raffinate, while only Fe(III) was extracted by TBP. The Pt(IV) in the loaded Cyanex 923 phase was first selectively stripped over Fe(III) by NaSCN and then the remaining Fe(III) was stripped by HCl solution. The Fe(III) in the loaded TBP phase was easily stripped by dilute HCl solution. The McCabe-Thiele diagrams for the extraction of Pt(IV) by Cyanex 923 and of Fe(III) by TBP were constructed. Based on the obtained results, a flowsheet for the separation of three metals from the real leaching solution of glass industry scraps was proposed.
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