Abstract
Operational irregularities originating from excessive dusting by selective anode oxidation have been experienced by most aluminum producers, particularly in Soderberg pots.
The spatial distribution of carbon particles in the bath of aluminum reduction cells has been characterized by a combination of optical microscopy and gravimetric oxidation methods. Samples covering the entire bath depth were obtained from prebaked and Soderberg cells by a specially designed sample collector, which was opened and closed while immersed in the melt. Quenched bath cores were sliced and prepared for microscopic gravimetric oxidation analysis to determine particle size distribution and total carbon content versus bath depth.
The oxidation rate of carbon in the bath was studied in separate bench scale experiments.
Results are discussed in terms of practical operational impacts and applications.
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References
K. Grjotheim, C. Krohn, M. Malinovsky, K. Matia-sovsky and J. Thonstad, “Aluminium Electolysis -Fundamentals of the Hall-Heroult Process”, aluminium Verlag, Dusseldorf, 1982, p.391.
R. Farr-Wharton, B.J. Welch, R.C. Hannah, R. Dorin and H.J. Gardner, Electrohim. Acta 25 (1980)217.
S.S. Jones and R.D. Hildebrandt, Light Metals 1974, p.901.
K. Grjotheim and B.J. Welch, “Aluminium Smelter Technology — A Pure and Applied Approach”, Aluminium Verlag, Dusseldorf, 1980.
E.A. Hollingshead and V.A. Braunwarth, in “Extractive Metallurgy of Aluminium”, G. Gerad, ed., Interscience Publishers, New York, Vol.2, 1962, p.31.
P.J. Barat, T. Brault and J.P. Saget, Light Metals 1974, p.19.
P.J. Rhedey, Light Metals 1982, p.713.
P.J. Rhedey, Light Metals 1971, p.385.
R.R. Adair, E.H. Boult, E.M. Freeman, S. Jasienko and H. March, Carbon 9 (1971)763.
E.T. Turkdogan and J.V. Vinters, Tenth Bien. Conf. Carbon, RS 158(1971)294.
G.J. Houston and H.A. 0ye, Aluminium 61(1985) 251.
R. Farr-Wharton, Ph.D. Thesis, The university of New South Wales, Australia, 1980.
E. Barillon, “Mechanism of Carbon Dust Formation in Aluminium Electrolysis”, Milan, Italy, 1971.
B.P. Domrachev and M.A. Korobov, Tsvet. Met. 44(1971)30.
J.F. Rey Boero, Light Metals 1981, Proceedings of Sessions, 110th AIME Annual Meeting, Chicago, Illinois, 1981, p.44.
K. Motzfeldt, in “Physicochemical Measurements at High Temperature”, J.O’M. Bockris, J.L. White and J.D. Mackenzie, eds., Butterworths Scientific Publications, London 1959, p.51.
G.H. Aylward and T.J.V. Findlay, “SI Chemical Data”, Wiley, Sydney, 1971.
C.L. Mantell, “Carbon and Graphite Handbook”, Led., Interscience Publishers, New York, 1968.
R.C. Dorward, Light Metals 1973, p.105.
K. Grjotheim, R. Naumann, and H.A. 0ye, Light Metals 1977, p.233 .
K. Grjotheim, O. Herstad, R. Naumann and H.A. 0ye, Light Metals 1978, Vol.1, p.107.
H. Kvande, Light Metals 1980, p. 171.
J. Thonstad, Can.J.Chem., 43(1965)3429.
S. Rolseth and J. Thonstad, Light Metals 1981, p.289.
W.E. Haupin, J. Electrochem.Soc., 107(1960)232.
J.A. Brown and E.A. Hollingshead, Paper presented at the 97th AIME Annual Meeting, New York, 1968.
P.T. Stroup, Trans.Met. Soc.AIME 230(1964)356.
28. H. Ginsberg and V. Sparwald, Aluminium 41(1965)181.
29. D. Bratland and C. Krohn, Tidsskr. Kjemi, Bergv., Metallurgi 26(1966)81.
30. D. Bratland, K. Grjotheim, C. Krohn and K. Motzfeldt, J. Metals 19(1967)13.
D. Bratland, Dissertation, Institute of Inorganic Chemistry, The university of Trondheim, Norway 1966.
H. Numata and J.O’M. Bockris, Light Metals 1984, 759.
JANAF Thermochemical Tables, 2nd ed., NSRDS -NBS 37, US Dept. of Commerce, Washington DC 1971.
34. J. Thonstad and A. Solbu, Trans. Met. Soc. AIME 242(1968)301.
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Foosnæs, T., Naterstad, T., Bruheim, M., Grjotheim, K. (2016). Anode Dusting in Hall — Heroult Cells. In: Tomsett, A., Johnson, J. (eds) Essential Readings in Light Metals. Springer, Cham. https://doi.org/10.1007/978-3-319-48200-2_83
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