caa a22 4500 475815483 CHVBK 20180406123808.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1003867821601 doi (NATIONALLICENCE)springer-10.1023/A:1003867821601 Electrowinning of tellurium from alkaline leach liquor of cemented Te [Elektronische Daten] [Y.-C. Ha, H.-J. Sohn, G.-J. Jeong, C.K. Lee, K.-I. Rhee] The electrochemical behaviour of tellurium in 2.5 M NaOH solution was studied for the recovery of tellurium from alkaline leach liquor of cemented Te using steady state polarization and cyclic voltammetry. The deposition characteristics and the potential range for a stable deposit of tellurium were also investigated. The morphology of deposited Te in alkaline solution showed a very porous nature and needlelike radial growth. The potential range for stable electrodeposition was between −0.8 V and −0.95 V (vs Hg/HgO electrode), but electrowinning could be carried out at more negative potentials due to the disproportionation reaction of Te2 2−. Laboratory-scale electrowinning experiments were performed under different operating voltages, temperatures and initial Te concentrations. The current efficiency was about 85-90% for 50% recovery and about 50-60% for 90% recovery. The purity of electrodeposited Te was higher than 99.95%. Kluwer Academic Publishers, 2000 alkaline leach liquor nationallicence cemented Te nationallicence electrodeposition nationallicence electrowinning nationallicence tellurium nationallicence Ha Y.-C School of Materials Science and Engineering, Seoul National University, 151-742, Seoul, Korea aut Sohn H.-J School of Materials Science and Engineering, Seoul National University, 151-742, Seoul, Korea aut Jeong G.-J Department of Mineral and Petroleum Engineering, Seoul National University, 151-742, Seoul, Korea aut Lee C.K. Minerals & Materials Processing Division, Korea Institute of Geology, Mining & Materials, 30 Kajung Dong, Yusong-Ku, 305-350, Taejon, Korea aut Rhee K.-I Minerals & Materials Processing Division, Korea Institute of Geology, Mining & Materials, 30 Kajung Dong, Yusong-Ku, 305-350, Taejon, Korea aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/3(2000-03-01), 315-322 0021-891X 30:3<315 2000 30 10800 https://doi.org/10.1023/A:1003867821601 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1003867821601 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ha Y.-C School of Materials Science and Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 700 1- Sohn H.-J School of Materials Science and Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 700 1- Jeong G.-J Department of Mineral and Petroleum Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 700 1- Lee C.K. Minerals & Materials Processing Division, Korea Institute of Geology, Mining & Materials, 30 Kajung Dong, Yusong-Ku, 305-350, Taejon, Korea aut NATIONALLICENCE 700 1- Rhee K.-I Minerals & Materials Processing Division, Korea Institute of Geology, Mining & Materials, 30 Kajung Dong, Yusong-Ku, 305-350, Taejon, Korea aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/3(2000-03-01), 315-322 0021-891X 30:3<315 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer