The Initiation, Propagation and Termination of Anode Effects in Hall-Heroult Cells

  • TMS
  • Gary Tarcy
  • Alton Tabereaux


Anode effects in Hall-Héroult cells have been the subject of multiple investigations and studies. The current state of the knowledge is fairly well advanced and there is very little discrepancy or controversy with respect to many of the phenomena associated with anode effects. Included in this is the belief they are: 1) AE are the predominate emitter of PFC into the atmosphere 2) AE are triggered by low alumina concentrations near the anode surface 3) Short circuiting of at least part of the anode cathode inter electrode gap is required to terminate an anode effect. This paper will cover some of less discussed aspects of anode effect including: 1) the initiation at a single random anode in the circuit; 2) propagation to multiple anodes until the whole circuit is on anode effect and; 3) reason it is necessary to short circuit the anodes to terminate anode effect.


1 Alcoa Inc 2Consultant 


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  1. 1.
    Piontelli, R., Mazza, B. and Pedeferri, P. (1965). Ricerche sui fenomeni anodici nelle celle per alluminio. Metallurgia Italiana, 57(2), 51–69.Google Scholar
  2. 2.
    Internal Alcoa Letter A. J. Sharkins to Rolf Rolles 1979–12–26.Google Scholar
  3. 3.
    Y. Feng, M.A. Cooksey, and M.P. Schwarz, “CFD Modelling of alumina Mixing in Aluminum Reduction Cells”, Light Metals 2010, pp.455–460.Google Scholar
  4. 4.
    B. Moxnes, A. Solheim, M. Liane, E. Svinsas and A. Halkjelsvik, “Improved Cell Operation by Redistribution of the Alumina Feeding”, Light Metals 2009, pp.461–466.Google Scholar
  5. 5.
    G.L. Fredrickson, “1999 Pilot Cell Operations — Final Report”, (DOE Project # DE-FC07–97ID13567), March 2000.Google Scholar
  6. 6.
    Marks, J., “Method for Calculating the PFC Emissions From Primary Aluminum Production,” Light Metals 2006, pages 185–188.Google Scholar
  7. 7.
    Marks, J., Tabereaux, A.T., Pape, D., Bakshi and E. Dolin, “Factor affecting PFC Emissions From Commercial Aluminum Reduction Cells”, Light Metals 2001, pp.295–302.Google Scholar
  8. 8.
    A. Tabereaux, “Maximum Anode Effect Voltage”, Light Metals 207, pages pp.405–410.Google Scholar
  9. 9.
    P. Navarro, Gregoric G., Cobob O., and Calandra, A., “A New Anode Effect Quenching Procedures”, Light Metals 2003, pp.479–486.Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2016

Authors and Affiliations

  • TMS
    • 1
  • Gary Tarcy
    • 2
  • Alton Tabereaux
  1. 1.TMS (The Minerals, Metals & Materials Society)WarrendaleUSA
  2. 2.Alcoa Technical CenterAlcoa CenterUSA

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