Abstract
Prebaked anodes are made of dry aggregates (coke, recycled butts and rejected green/baked anodes) and the binder pitch. During the mixing process, the wettability of coke by pitch influences the anode paste behavior. Coke particles (-125 +100 μm) were prepared from the same source using two different procedures, and the wettability of cokes by five pitches with different properties was studied using a sessile-drop system at 170ºC. The contact angle results show that the wettability of coke by all pitches follows a similar trend for both cases, but the actual contact angles are different. The cokes and the pitch-coke interfaces were also investigated by the optical and scanning-electron microscopy (SEM) techniques. The image analysis results indicated that the coke particle size distribution depends on the coke preparation, which seems to influence its wettability.
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References
K.L. Hulse, Anode manufacture : Raw materials, formulation and processing parameters (Sierre [Suisse]: R & D Carbon Ltd., 2000), xxxv, 416 p.
P. Couderc, P. Hyvernat, and J.L. Lemarchand, “Correlations between ability of pitch to penetrate coke and the physical characteristics of prebaked anodes for the aluminium industry,” Fuel. 65(2) (1986), p. 281–287.
V.I. Denisenko, S.M. Chalik, L.P. Lasukove, and N.P. Dyblina, “The wettign capacity of coal tar pitches,” Tsvet.met.9,(52–54) (1980).
P.Y. Nefedov, D.D. Zhuravleva, and A.N. Reshetko, “Study of the process of wetting coals and carbonaceous materials by pitch,” Solid Fuel Chemistry. 12(3) (1978), p. 18–24.
A. Sarkar, D. Kocaefe, Y. Kocaefe, D. Bhattacharyay, B. Morais, and M. Pouliot. Characterization of petroleum coke and butts used in anode manufacturing in aluminum industry. in Materials Science and Technology Conference and Exhibition 2013, MS and T 2013. 2014. Montreal, QC.
V.G. Rocha, C. Blanco, R. Santamaría, E.I. Diestre, R. Menéndez, and M. Granda, “The effect of the substrate on pitch wetting behaviour,” Fuel Processing Technology. 91(11) (2010), p. 1373–1377.
M.B. Dell, and R.W. Peterson, “Wettability of petroleum cokes by pitch,” Industrial and Engineering Chemistry Product Research and Development. 9(2) (1970), p. 190–194.
V.G. Rocha, C. Blanco, R. Santamaría, E.I. Diestre, R. Menéndez, and M. Granda, “Pitch/coke wetting behaviour,” Fuel. 84(12–13) (2005), p. 1550–1556.
V.G. Rocha, C. Blanco, R. Santamaría, E.I. Diestre, R. Menéndez, and M. Granda, “An insight into pitch/substrate wetting behaviour. The effect of the substrate processing temp erature o n pitch wettin g capacity,” Fuel. 86(7–8) (2007), p. 1046–1052.
A. Sarkar, D. Kocaefe, Y. Kocaefe, D. Sarkar, D. Bhattacharyay, B. Morais, and J. Chabot, “Coke-pitch interactions during anode preparation,” Fuel. 117(PART A) (2014), p. 598–607.
D. Hays, J.W. Patrick, and A. Walker, “Sem ch aracterization of co kes and carb ons,” Fuel. 62(9) (1983), p. 1079–1083.
D. Hays, J.W. Patrick, and A. Walker, “Sem study of binder coke in electrode carbon,” Fuel. 62(8) (1983), p. 946–952.
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Lu, Y., Kocaefe, D., Kocaefe, Y., Bhattacharyay, D., Huang, XA., Morais, B. (2016). Study of the Wetting of Coke by Different Pitches. In: Williams, E. (eds) Light Metals 2016. Springer, Cham. https://doi.org/10.1007/978-3-319-48251-4_147
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DOI: https://doi.org/10.1007/978-3-319-48251-4_147
Publisher Name: Springer, Cham
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