caa a22 4500 477051561 CHVBK 20180405111340.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF00364069 doi (NATIONALLICENCE)springer-10.1007/BF00364069 An electrochemical current efficiency model for aluminium electrolysis cells [Elektronische Daten] [Å. Sterten, P. Solli] Previous current efficiency models of the rate of aluminium production in Hall-Heroult cells are briefly summarized. A description and discussion of the cathode processes are given, and rate limiting steps are evaluated under the assumption of no concentration gradients in the bulk electrolyte phase during electrolysis. An electrochemical current efficiency model is derived from selected rate determining steps. The model expresses the local current efficiency in terms of the local partial current density for the aluminium deposition reaction and the local partial current density for all cathodic loss reactions. The model equations are valid both for laboratory and for commercial cells and independent of whether or not electrolyte impurities are involved in cyclic redox reactions. The necessary precautions to study the parameters affecting current efficiency both in commerical and in laboratory cells are outlined. Chapman & Hall, 1996 Sterten Å. Department of Electrochemistry, The Norwegian Institute of Technology (NTH), The University of Trondheim, N-7034, Trondheim, Norway aut Solli P. Hydro Aluminium, Technology Centre Årdal, P.O. Box 303, N-5870, Øvre Årdal, Norway aut Journal of Applied Electrochemistry Kluwer Academic Publishers 26/2(1996-02-01), 187-193 0021-891X 26:2<187 1996 26 10800 https://doi.org/10.1007/BF00364069 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00364069 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sterten Å. Department of Electrochemistry, The Norwegian Institute of Technology (NTH), The University of Trondheim, N-7034, Trondheim, Norway aut NATIONALLICENCE 700 1- Solli P. Hydro Aluminium, Technology Centre Årdal, P.O. Box 303, N-5870, Øvre Årdal, Norway aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 26/2(1996-02-01), 187-193 0021-891X 26:2<187 1996 26 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer