caa a22 4500 475816293 CHVBK 20180406123811.0 cr unu---uuuuu 170329e20000201xx s 000 0 eng 10.1023/A:1003908014531 doi (NATIONALLICENCE)springer-10.1023/A:1003908014531 Sulphurous acid as anodic depolarizer in copper electrowinning Part II [Elektronische Daten] [T. Subbaiah, P. Singh, G. Hefter, D. Muir, R.P. Das] The growing interest in the electrowinning of copper has lead to several modifications including anodic reactions proposed to reduce the high energy requirement. The addition of sulphurous acid to a copper sulphate electrolyte has been studied to avoid oxygen evolution at the anode which requires a potential in excess of 2 V. In particular, the effect of different anode materials, concentration of sulphurous acid, current density, copper and sulphuric acid concentrations in the electrolyte have been investigated. Measurements of anode potential, cell voltage, current efficiency and energy consumption during the electrowinning of copper have been made using a diaphragm cell. It was found that graphite and lead coated with Ir-O2 are better electrode materials than lead and DSA anodes and sulphurous acid can be used as anodic depolarizer. Kluwer Academic Publishers, 2000 anode materials nationallicence anodic depolarizer nationallicence current density nationallicence deposit morphology nationallicence electrowinning nationallicence energy reduction nationallicence sulphurous acid nationallicence Subbaiah T. Regional Research Laboratory (CSIR), 751 013, Bhubaneswar, India aut Singh P. Department of Chemistry, School of Physical Sciences, Engineering & Technology, Murdoch University, 6150, Murdoch, WA, Australia aut Hefter G. Department of Chemistry, School of Physical Sciences, Engineering & Technology, Murdoch University, 6150, Murdoch, WA, Australia aut Muir D. Department of Chemistry, School of Physical Sciences, Engineering & Technology, Murdoch University, 6150, Murdoch, WA, Australia aut Das R.P. Regional Research Laboratory (CSIR), 751 013, Bhubaneswar, India aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/2(2000-02-01), 181-186 0021-891X 30:2<181 2000 30 10800 https://doi.org/10.1023/A:1003908014531 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1003908014531 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Subbaiah T. Regional Research Laboratory (CSIR), 751 013, Bhubaneswar, India aut NATIONALLICENCE 700 1- Singh P. Department of Chemistry, School of Physical Sciences, Engineering & Technology, Murdoch University, 6150, Murdoch, WA, Australia aut NATIONALLICENCE 700 1- Hefter G. Department of Chemistry, School of Physical Sciences, Engineering & Technology, Murdoch University, 6150, Murdoch, WA, Australia aut NATIONALLICENCE 700 1- Muir D. Department of Chemistry, School of Physical Sciences, Engineering & Technology, Murdoch University, 6150, Murdoch, WA, Australia aut NATIONALLICENCE 700 1- Das R.P. Regional Research Laboratory (CSIR), 751 013, Bhubaneswar, India aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/2(2000-02-01), 181-186 0021-891X 30:2<181 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer