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Electrolysis of molten salt solutions containing PbSO4

II. Products formed when using a carbon anode

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Abstract

The anode products formed when electrowinning lead from lead sulphate dissolved in LiCl-KCl eutectic have been determined when using a carbonaceous anode.

Results indicate that electrolytic decomposition proceeds by the overall reaction

$$PbSO_4 + C \to Pb + CO_2 + SO_2 $$

However at low current densities the CO2 content increases by the reaction

$$C + SO_2 \rightleftharpoons CO_2 + \frac{1}{v}S_v $$

The secondary reactions of the cathodically produced lead also increase the CO2 and sulphur yields according to the following overall reactions

$$2PbO + C \to 2Pb + CO_2 $$

and

$$PbS \to Pb + \frac{1}{v}S_v $$

All the above electrochemical reactions are extensively polarized and chlorine co-evolution starts at low current densities.

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References

  1. B. J. Welch and T. K. Hoa, This Journal—preceding paper.

  2. H. Flood and T. Forland,Disc. Farad. Soc.,1 (1947) 302.

    Google Scholar 

  3. C. H. Liu,J. Phys. Chem.,66 (1962) 164.

    Google Scholar 

  4. K. E. Johnson, and H. Laitinen,J. Electrochem. Soc.,110 (1963) 314.

    Google Scholar 

  5. A. J. Arvia, A. J. Calandra, and H. A. Videla,Electrochim. Acta,13 (1968) 167.

    Google Scholar 

  6. B. Burrows and G. J. Hills,Electrochim. Acta,15 (1970) 445.

    Google Scholar 

  7. R. A. Jenkins, M.Sc. Thesis, University of New South Wales (1971).

  8. I. T. Gul'din and A. V. Buzhinskaya,Soviet Electrochemistry,1 (1965) 634.

    Google Scholar 

  9. C. Liteanu and E. Cordos,Rev. Roum. de Chimie,12 (1967) 985.

    Google Scholar 

  10. F. I. L'vovich, S. A. Zaretskii and A. G. Morachevskii,Zh. P.Kh.,40 (1967) 828.

    Google Scholar 

  11. A. J. Arvia, W. E. Triaca and H. A. Videla,Electrochim. Acta,15 (1970) 9.

    Google Scholar 

  12. A. M. Shams el Din,Electrochim. Acta,4 (1961) 242

    Google Scholar 

  13. S. I. Rempel and E. M. Malkova,Zh. P. Kh.,25 (1952) 558.

    Google Scholar 

  14. H. Flood and T. Forland,Acta Chem. Scand.,1 (1947) 781.

    Google Scholar 

  15. P. L. King, Ph.D. Thesis, University of New South Wales (1971).

  16. J. Thonstad,Electrochim. Acta,15 (1970) 1569.

    Google Scholar 

  17. S. I. Rempel and L. P. Khodak,Zh. P. Kh.,26 (1953) 931.

    Google Scholar 

  18. B. G. Tucker and M. F. R. Mulcahy,Trans. Farad. Soc.,65 (1969) 274.

    Google Scholar 

  19. K. J. Vetter, ‘Electrochemical Kinetics’, Academic Press, New York (1967).

    Google Scholar 

  20. R. J. Steele, Ph.D. Thesis, University of New South Wales (1971).

  21. S. I. Rempel,Dokl Akad Nauk SSSR,117 (1957) 648.

    Google Scholar 

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Jenkins, R.A., Welch, B.J. Electrolysis of molten salt solutions containing PbSO4 . J Appl Electrochem 3, 53–60 (1973). https://doi.org/10.1007/BF01119467

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  • DOI: https://doi.org/10.1007/BF01119467

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