Improved design equation for the interelectrode voltage drop in industrial aluminium cells

TMS Light Metals

Volumn , Issue , 2004, Pages 427-432

  Thonstad, J ^a   Kleinschrodt, H D ^b   Vogt, H ^b  

^a NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY   (Norway)

^b UNIVERSITY OF APPLIED SCIENCES   (Germany)

Author keywords

Gas bubbles; Ohmic interelectrode voltage drop

Indexed keywords

BUBBLE-FREE ZONES; GAS BUBBLES; INDUSTRIAL ALUMINUM CELLS; OHMIC INTERELECTRODE VOLTAGE DROP;

ALUMINUM; ANODES; ELECTRIC POTENTIAL; ELECTRIC RESISTANCE; ELECTRODES; FINITE ELEMENT METHOD; MASS TRANSFER; VOLTAGE MEASUREMENT;

ELECTROLYTIC CELLS;

EID: 2442602634     PISSN: 01470809     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (22)

1. H. Vogt, Gas evolving electrodes. In: E. Yeager, J.O'M. Bockris, B.E. Conway and S. Sarangapani (eds.), Comprehensive Treatise of Electrochemistry, Vol. 6. Plenum, New York 1983, pp. 455-489.
2. D.A.G. Bruggeman, Berechnung verschiedener physikalischer Konstanten von heterogenen Substanzen. Ann. Physik (Leipzig), 5. Folge, 24 (1935) 636-679.
3. rd edn., vol. 1, Clarendon Press, Oxford 1892, p. 440.
4. W. Haupin, Interpreting the components of cell voltage. In: B. Welch (ed.), Light Metals 1998, Minerals, Metals & Materials Soc., Warrendale 1998, p. 531-537.
5. T.M. Hyde and B.J. Welch, The gas under anodes in aluminium smelting cells. Part I: Measuring and modelling bubble resistance under horizontally oriented electrodes. In: R. Huglen (ed.), Light Metals 1997, Minerals, Metals & Materials Soc., Warrendale 1997, p. 333-340.
6. T. Drenstig, S. Kolås and T Støre, The impact of varying conductivity on the control of aluminium electrolysis cells. In: W. Schneider (ed.), Light Metals 2002, Minerals, Metals & Materials Soc., Warrendale 2002, p. 377-382.
7. N.B. Richards, The dynamics of components of the anodic overvoltage in the alumina reduction cell. In: B. Welch (ed.), Light Metals 1998, Minerals, Metals & Materials Soc., Warrendale 1998, p. 521-529.
8. E.W. Dewing, The chemistry of the alumina reduction cell. Can. Metallurg. Quart. 30 (1991) 153-161.
9. S. Fortin, M. Gerhardt and A.J. Gesing, Physical modelling of bubble behavior and gas release from aluminium reduction cell anodes. In: J.P. McGreer (ed.), Light Metals 1984, The Metallurg. Soc. of A.I.M.E., Warrendale 1984, pp. 721-741.
10. L. Cassayre, T.A. Utigard and S. Bouvet, Visualizing gas evolution on graphite and oxygen-evolving anodes. J. Metals (5) (2002) 41-467.
11. R.J. Aaberg, V. Ranum, K. Williamson and B.J. Welch, The gas under anodes in aluminium smelting cells. Part II: Gas volume and bubble layer characteristics. In R. Huglen (ed.), Light Metals 1997, Minerals, Metals & Materials Soc., Warrendale 1997, pp. 341-346.
12. H. Vogt, The anode effect as a fluid dynamic problem. J. Appl. Electrochem. 29 (1999) 137-145.
13. J. Xue and H.A. Øye, Bubble behaviour - cell voltage oscillation during aluminium electrolysis and the effects of the sound and ultrasound. In: J. Evans (ed.), Light Metals 1995, Minerals, Metals & Materials Soc., Warrendale 1995, pp. 265-271.
14. J. Zoric and A. Solheim, On gas bubbles in industrial aluminium cells with prebaked anodes and their influence on the current distribution. J. Appl. Electrochem. 30 (2000) 787-794.
15. H. Vogt and J. Thonstad, The voltage of alumina reduction cells prior to anode effect. J. Appl. Electrochem. 32 (2002) 241-249.
16. H. Vogt and H.-D. Kleinschrodt, The ohmic interelectrode voltage drop in alumina reduction cells, J. Appl. Electrochem. 33 (2003), to be published.
17. W.E. Haupin, A scanning reference electrode for voltage contours in aluminum smelting cells. J. Metals 23, Nr. 10 (1971) 46-49.
18. W. Haupin and H. Kvande, Thermodynamics of electrochemical reduction of alumina. In: R.D. Peterson (ed.) Light Metals 2000, Minerals, Metals & Materials Soc., p. 379-384.
19. A. Solheim and J. Thonstad, Model cell studies of gas induced resistance in Hall-Héroult cells. In: R.E. Miller (ed.), Light Metals 1986, Metallurg Soc. A.I.M.E., Warrendale 1986, p. 397-403.
20. Qian K., Chen B.D. and Chen J.J.J., Bubble coverage and bubble resistance using cells with horizontal electrode. J. Appl. Electrochem. 28 (1998) 1141-1145.
21. S. Rolseth, T. Müftüoglu, A. Solheim and J. Thonstad, Current efficiency at short anode-cathode distance. In: R.E. Miller (ed.), Light Metals 1986, Metallurg. Soc. A.I.M.E., Warrendale 1986, p. 517-523.
22. T. Naterstad, Hydro Aluminium, private communication 2003.