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Journal of Applied Electrochemistry

, Volume 12, Issue 4, pp 411–416 | Cite as

The reaction occurring between gaseous CF4 and oxides dissolved in different molten fluorides. Some practical aspects

  • C. E. Castellano
  • A. J. Calandra
Papers

Abstract

When CF4 is bubbled through molten fluorides containing dissolved oxides within the range 900–1020° C, a chemical reaction takes place which decreases the oxide concentration and yields CO2 and F ions. The possibility of the reaction between the CF4 evolved at the anode and dissolved alumina, occurring during the anode effect in aluminium reduction cells, is discussed. This reaction provides a simple and convenient method for removing oxides and hydroxides from molten fluorides.

Keywords

Oxide Alumina Physical Chemistry Hydroxide Fluoride 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1982

Authors and Affiliations

  • C. E. Castellano
    • 1
  • A. J. Calandra
    • 1
  1. 1.Research and Development, Department of Electrochemical ProcessesALUAR Aluminio Argentino SAICPuerto Madryn, ChubutArgentina

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