Abstract
Fines in smelter-grade aluminas are recognized as a significant process problem in aluminum smelting. However, understanding the nature of this fine material and how it impacts the reduction process are less clearly understood. The combination of new analytical methods such as variable pressure scanning electron microscopy and very high field solid state nuclear magnetic resonance provide new insights into the phases present and their spatial distribution within aluminas, and suggest how such fine materials are generated, particularly during calcination in the alumina refinery.
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References
L.K. Hudson, editor, Alumina Production (Pittsburgh, PA: Alcoa Research Laboratories, 1982).
A.M. Taylor, Proc. of the 7th International Alumina Quality Workshop (Perth, Western Australia, 2005), pp. 103–107.
A. Saatci et al., Light Metals 2004, ed. A.T. Tabereaux (Warrendale, PA: TMS, 2004), pp. 81–86.
L. Perander et al., Proc. of the 8th International Alu mina Quality Workshop (Darwin, Australia, 7–12 September 2008), pp. 103–107.
A.R. Gillespie, M.M. Hyland, and J.B. Metson, Light Metals 2000, ed. R.D. Peterson (Warrendale, PA: TMS, 2000), pp. 345–350.
B.J. Welch and G.I. Kuschel, JOM, 59(5) (2007), pp. 50–54.
L. Candela and D.D. Perlmutter, AlChE Journal, 32(9) (1986), pp. 1532–1545.
M. Myland, E. Patterson, and B. Welch, in Reference 3, pp. 361–366.
J.B. Metson, M.M. Myland, and T. Groutso, Light Met als 2005, ed. Halvor Kvande (Warrendale, PA: TMS, 2005), pp. 127–131.
S. Brunauer, P.H. Emmett, and E. Teller, Journal of the American Chemical Society, 60 (1938), pp. 309–319.
E.P. Barrett, L.G. Joyner, and P.P. Halenda, Journal of the American Chemical Society, 73 (1951), pp. 373–380.
T. Ashida, J.B. Metson, and M.M. Myland, in Reference 3, pp. 93–96.
G.I.D. Roach, J.B. Cornell, and B.J. Griffin, Light Metals 1998, ed. B.J. Welch (Warrendale, PA: TMS, 1998), pp. 153–158.
T.C. Baroni et al., Microscopy and Microanalysis, 6(1) (2000), pp. 49–58.
L.M. Perander et al., Canadian Journal of Chemistry, 85(10) (2007), pp. 889–897.
M.E. Smith, Applied Magnetic Resonance, 4(1–2) (1993), pp. 1–64.
R.C.T Slade, J.C. Southern, and I.M. Thompson, Journal of Materials Chemistry, 1(4) (1991), pp. 563–568.
C.S. John, N.C.M. Alma, and G.R. Mays, Applied Catalysis, 6(3) (1983), pp. 341–346.
M.H. Lee et al., Chemical Physics Letters, 265(6) (1997), pp. 673–676.
L.A. O’Dell et al., Solid State Nuclear Magnetic Res onance, 31(4) (2007), pp. 169–173.
R.C.T. Slade, J.C. Southern, and I.M. Thompson, Journal of Materials Chemistry, 1(5) (1991), pp. 875–879.
K.J.D. MacKenzie and M.E. Smith, Multinuclear Solid-State Nuclear Magnetic Resonance of Inorganic Materials (Oxford, U.K.: Pergamon, 2002).
T.F. Kemp, “High Field Solid State 27Al NMR of Ceramics and Glasses” (Ph.D. thesis, The University of Warwick, U.K., 2004).
R.S. Zhou and R.L. Snyder, Acta Crystallographica, Section B: Structural Science, B47(5) (1991), pp. 617–630.
T.R. Barton et al., Light Metals 1995, ed. J.W. Evans (Warrendale, PA: TMS, 1995), pp. 71–74.
G. Kunath-Fandrei et al., Journal of Physical Chemistry, 99(41) (1995), pp. 15138–15141.
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Perander, L.M., Zujovic, Z.D., Kemp, T.F. et al. The nature and impacts of fines in smelter-grade alumina. JOM 61, 33–39 (2009). https://doi.org/10.1007/s11837-009-0164-x
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DOI: https://doi.org/10.1007/s11837-009-0164-x