Electrochemical behaviour and electrowinning of rhodium in acidic chloride solution
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- 作者：Byeong-Chul Yu (1)
Soo-Kyung Kim (2)
Jeong-Soo Sohn (2)
Byung-Soo Kim (2)
Kang-In Rhee (2)
Hun-Joon Sohn (1) - 关键词：Rhodium ; Chloride solution ; Electrowinning ; Cyclone cell
- 刊名：Journal of Applied Electrochemistry
- 出版年：2014
- 出版时间：June 2014
- 年：2014
- 卷：44
- 期：6
- 页码：741-745
- 全文大小：1,120 KB
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Soo-Kyung Kim (2)
Jeong-Soo Sohn (2)
Byung-Soo Kim (2)
Kang-In Rhee (2)
Hun-Joon Sohn (1)
1. Department of Materials Science and Engineering, Seoul National University, Seoul, 151-744, Korea
2. Minerals and Materials Processing Division, Korea Institute of Geoscience & Mineral Resources, Daejeon, 305-350, Korea - ISSN：1572-8838
文摘
The electrochemical behaviour and recovery of rhodium in an acidic solution were investigated using a rotating disc electrode system and a modified electrochemical cyclone cell, respectively. The electrochemical polarization data indicated that the Rh3+ ions were reduced to metallic Rh below ?.1?V, and the limiting current density for rhodium deposition was observed at around ?.3?V (vs. SCE) with a diffusion coefficient of 6.3?×?10??cm2?s? using the Levich equation. The effects of the applied voltage and the initial concentration of rhodium were examined using the modified cyclone cell, and more than 91?% of the rhodium in solution was recovered within 2?h under the optimal conditions.