|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies: An EPD Symposium in Honor of Professor Ramana G. Reddy
||Modeling of Aluminum Electrowinning in Ionic Liquid Electrolytes
||Mingming Zhang, Ramana G. Reddy
|On-Site Speaker (Planned)
A 3D mathematical model was developed for the batch reactor of aluminum electrowinning in ionic liquid electrolytes. This model describes the deposition process by incorporating the mass transport of participating ionic species, homogeneous chemical reactions within the diffusion layer, and the associated electrochemical kinetics. A number of process parameters affecting the current distribution were evaluated for optimal reactor performance, including current and potential distributions, concentration profiles, fluid flow distribution, and electrode configurations. The results indicated that the electrode configuration significantly affects the electrolyte fluid flow and current density distribution. The parallel electrode configuration (in line with electrolyte inlet) improved the convection and resulted in homogenous current density distribution as well as electrolyte fluid flow streamline and electroactive species distribution. Perpendicularly configured electrode resulted in a more complex hydraulic circuit within electrolyte domain, which has potential to cause non-homogenous deposits.
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