|About this Abstract
||Part C-1: Hydrometallurgy 2018
||EMD Deposition on Mn<sub>2</sub>O<sub>3</sub>/Ti Anode for Manganese Recovery from Zinc Electrowinning Solutions
||Yuuki Yoshida, Kenji Kawaguchi, Masatsugu Morimitsu
|On-Site Speaker (Planned)
This paper reports the preparation of Mn<sub>2</sub>O<sub>3</sub> coated titanium electrodes by thermal decomposition method and the anodic deposition of electrolytic manganese dioxide on the Mn<sub>2</sub>O<sub>3</sub>/Ti anode. The conductivity of the electrode and the polarization resistance for Mn(II) oxidation in sulfuric acid solutions were strongly affected by thermal decomposition temperature, and the electrode prepared at 350 <sup>o</sup>C worked well for EMD deposition. The anodic current density, the bath temperature, the Mn(II) concentration, and the electrolysis time were investigated to know their influences on the crystallographic structure and current efficiency of EMD. We present the most favorable electrolysis conditions to produce EMD on the Mn<sub>2</sub>O<sub>3</sub>/Ti anode and show a possibility to recover manganese from zinc electrowinning solutions.
||Planned: At-meeting proceedings