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Vol 170 No 1
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Research article

Distribution of impurities in aluminum cathode depending on technological factors

D. V. Makushin
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  • Postgraduate student G.V. Plekhanov Saint Petersburg Mining Institute
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The studies carried out over the last decades show that one of the main causes of failure of electrolyzers is the behavior of sodium in the process of aluminum electrolysis and its introduction into the electrolyzer bed. The paper describes the behavior of sodium in the process of aluminum electrolysis with the use of a number of additives in the electrolyte, which have some influence on the electrolysis process and the state of the electrolysis bath.

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  2. Thonstad J., Rolseth S., Rodseth J. et al. The content of sodium and aluminium in laboratory and industrial cells J. Miner, Metals and Mater. Soc. 2000. Vol.52. № 11. P.158-165.
  3. Tingle W.H., Petit J., Frank W.B. Sodium content of aluminum in equilibrium with NaF – AlF3 melts. Aluminium (BRD). 1981. Vol.57. P.286-288.
  4. Fellner P., Lubyova Z. Chem. Papers. 1986. P.145-151.
  5. Peterson R.D., Tabereaux A.T. Effect of bath additivitives on aluminium metal purity Light Metals. 1986. Р.491-500.
  6. Brisley R.J., Fray D.J. Determination of the sodium activity in aluminium and aluminum silicon alloys using sodium beta alumina Met. Trans. 1983. 14B. № 3. Р.435-440.
  7. Tabereaux A.T. The role of sodium in aluminum electrolysis: a possible indicator of cell performance. Light Metals. 1996. Р.319-326.

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