|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Rare Metal Extraction & Processing
||Ti electrolytic refining in LiF-NaF molten salt from Cu-Ti impurial anode
||Jong-soo Byeon, Sang-hoon Choi, Kee-ahn Lee, Seok-jun Seo, Kyoung-tae Park
|On-Site Speaker (Planned)
The molten salt electrolytic process is an eco-friendly and economical process as toxic gases are not generated and the molten salt can be reused. This process can selectively extract target elements with high purity, and is used for the extraction of rare metals. In this study, electrorefining process in molten salt for Ti recycling was used. LiF-NaF-25wt% BaTiF6 electrolyte, Cu-Ti anode, W cathode and reference electrodes were used. Electrodeposition of Ti metal was performed via chronopotentiometry (CP). Ti reduction potentials against W were 0.0 V (Ti4+/Ti3+), -0.42 V (Ti3+/Ti2+), -0.74 V (Ti3+/Ti+) and -1.0 V (Ti2+/Ti), measured by cyclic voltammetry (CV). Electrorefining was performed while gradually reducing the applied current density. Ti single-phase metal was confirmed by EDS and ICP-OES analyses of the electrodeposited cathode product, giving highest purity product at 50 mA/cm2 current density.