|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Materials Processing Fundamentals
||Feasibility Demonstration and Process Modeling of Titanium Electrowinning Enabled by Specialized Diaphragms
||Dai Shen, Mirko Antloga, Craig Virnelson, Mark De Guire, Uziel Landau, Rohan Akolkar
|On-Site Speaker (Planned)
A novel electrochemical reactor concept for enabling stable and energy-efficient electrowinning of titanium metal from high temperature chloride eutectic melts will be presented. The critical role of porous diaphragm separators in the reactor for retarding redox shuttling of multivalent titanium ions, thereby enabling efficient electrowinning, will be discussed. Furthermore, design criteria to eliminate extraneous bipolar reactions on the diaphragm will be outlined. Feasibility of titanium electrowinning in a prototype molten salt electrochemical reactor will be demonstrated. A comprehensive mathematical model of the titanium electrowinning process, which incorporates multivalent titanium species transport across the electrochemical cell coupled with current and potential distribution, will be outlined. Cell stability, current efficiency and electrowinning energy consumption predicted by the model will be compared to experimental data collected on the prototype electrowinning reactor.
||Planned: EPD Congress Volume