Abstract
The thermodynamic properties of the slag, matte, and liquid copper phases in the Cu-Ca-Fe-Si-O-S system have been critically assessed and optimized over the ranges of compositions of importance to copper smelting/converting based on thermodynamic and phase equilibria information available in the literature and using the modified quasichemical model. A thermodynamic database has been developed, which can be used for the calculation of matte-slag-copper-gas phase equilibria of interest for the production of copper. The model reproduces within experimental error limits all available experimental data on phase diagrams, matte-alloy miscibility gap and tie-lines, enthalpies of mixing, and activities of Cu and S in the matte and liquid alloy. The calculated solubilities of Cu in both S-free slag and slag equilibrated with matte are also in good agreement with experiment under all studied conditions, such as at SiO2 saturation, in equilibrium with Fe, Cu, or Cu-Au alloys, at fixed oxygen or SO2 partial pressures and at different contents of CaO in the slag. Sulfide contents (sulfide capacities) of the slags are predicted within experimental error limits from the modified Reddy-Blander model, with no adjustable parameters. As an example of the application of the database, the stability field of matte/slag equilibrium is calculated, and the matte and slag compositions are plotted vs iron to silica ratio in the slag at various SO2 pressures over this field. The matte-slag two-phase field is limited by the calculated lines corresponding to precipitation of copper, silica, and magnetite.
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R. Sridhar, J.M. Toguri, and S. Simeonov: Metall. Mater. Trans. B, 1997, vol. 28B, pp. 191–200.
R. Sridhar, J.M. Toguri, and S. Simeonov: JOM, 1997, Apr., pp. 48–52.
F.Y. Bor and P. Tarassoff: Can. Metall. Q., 1971, vol. 10 (4), pp. 267–71.
A. Geveci and T. Rosenqvist: Trans. Inst. Min. Metall., 1973, vol. 82, pp. C193-C201.
H. Jalkanen: Scand. J. Metall., 1981, vol. 10, pp. 177–84.
A.D. Pelton and M. Blander: Metall. Trans. B, 1986, vol. 17B, pp. 805–15.
S.A. Degterov and A.D. Pelton: J. Phase Equilib., 1996, vol. 17 (6), pp. 476–87.
S.A. Degterov and A.D. Pelton: J. Phase Equilib., 1996, vol. 17 (6), pp. 488–94.
S.A. Degterov and A.D. Pelton: Metall. Mater. Trans. B, 1997, vol. 28B, pp. 235–42.
A.D. Pelton, G. Erikson, and J.A. Romero-Serrano: Metall. Trans. B, 1993, vol. 24B, pp. 817–25.
P.A. Lindquist and B. Uhrenius: CALPHAD, 1980, vol. 4(3), pp. 193–200.
Y.Y. Chuang, R. Schmid, and Y.A. Chang: Metall. Trans. A, 1984, vol. 15A, pp. 1921–30.
Y. Dessureault: Ph.D. Thesis, Ecole Polytechnique de Montreal, Montreal, 1993.
A.D. Pelton, C.W. Bale, and W.T. Thompson: The FACT System, Ecole Polytechnique, Montreal, 1998 (http://www.crct.polymt1.ca).
R.C. Sharma and Y.A. Chang: Metall. Trans. B, 1979, vol. 10B, pp. 103–08.
W.R. Maddocks and G.E. Claussen: Iron Steel Inst. Spec. Rep., 1936, vol. 14, pp. 97–124.
A. Hellawell and W. Hume-Rothery: Phil. Trans. R. Soc. London, 1957, vol. A249, pp. 417–59.
Y. Nakagawa: Acta Metall., 1958, vol. 6, pp. 704–11.
A.A. Bochvar, A.S. Ekatova, E.V. Panchenko, and Y.F. Sidokhin: Dokl. Akad. Nauk. SSSR, 1967, vol. 174, pp. 863–64.
M. Hasebe and T. Nishizawa: CALPHAD, 1980, vol. 4, pp. 83–100.
W. Oelsen, E. Schurmann, and C. Florin: Arch. Eisenhuttenwes., 1961; vol. 32, pp. 719–28.
A. El’Khasan, K. Abdel-Aziz, A.A. Vertman, and A.M. Samarin: Izv. Akad. Nauk SSSR, Metally, 1966, vol. 3, pp. 19–30.
F. Woolley and J.F. Elliott: Trans. TMS-AIME, 1967, vol. 239, pp. 1872–83.
Y. Tozaki, Y. Iguchi, S. Ban-ya, and T. Fuwa: Chemical Metallurgy of Iron and Steel, Iron and Steel Institute, London, 1973, pp. 130–32.
J.P. Morris and G.R. Zellars: Trans. AIME, 1956, vol. 206, pp. 1086–90.
C.W. Bale and J.M. Toguri: Can. Metall. Q., 1976, vol. 15 (4), pp. 305–08.
C.W. Bale and J.M. Toguri: J. Thermal Anal., 1971, vol. 3, pp. 153–67.
K. Sudo: Sci. Rep. Res. Inst. Tohoku Univ. A, 1950, vol. 2, pp. 519–30.
C.B. Alcock and F.D. Richardson: Acta Metall., 1958, vol. 6, pp. 385–95.
J. Koh and A. Yazawa: Tohoku Daigaku Senko Seiren Kenkysho Iho, 1982, vol. 65 (7–8), pp. 567–78.
R. Schuhmann, Jr. and O.W. Moles: TMS-AIME, 1951, vol. 191, pp. 235–41.
K. Sudo: Tohoku Daigaku Senko Seiren Kenkyusho Iho, 1954, vol. 10, pp. 45–56.
K. Friedrich and M. Waehlert: Metall. Erz., 1913, vol. 10, pp. 976–79.
M. Moulki and J. Osterwald: Z. Metallkd., 1979, vol. 70 (12), pp. 808–10.
J. Chipman and Ta Li: Trans. Am. Soc. Met., 1937, vol. 25, p. 435.
C.B. Alcock and L.L. Cheng: J. Iron Steel Inst. London, 1960, vol. 195, pp. 169–73.
S. Hayashi and T. Uno: Tetsu-to-Hagane, 1982, vol. 68, pp. 1728–1736.
M.R. Baren and N.A. Gokcen: in Advances in Sulfide Smelting, H.Y. John, D.B. George, and A.D. Zunkel, eds., AIME, Warrendale, PA, 1983, pp. 41–56.
C.W. Sherman, H.I. Elvander, and J. Chipman: TMS-AIME, 1950, vol. 188, pp. 334–40.
F. Ishii and T. Fuwa: Tetsu-to-Hagane, 1981 vol. 33, pp. 261–68.
S. Ban-ya and J. Chipman: TMS-AIME, 1968, vol. 242, pp. 940–46.
F. Kongoli, Y. Dessureault, and A.D. Pelton: Metall. Mater. Trans. B, 1998, vol. 29B, pp. 591–601.
M.W. Chase, C.A. Davies, J.R. Downey, D.J. Frurip, R.A. McDonald, and A.N. Syverud: JANAF Thermochemical Tables, 3rd ed., J. Phys. Chem. Ref. Data, 1985, vol. 14, suppl. 1.
W.A. Krivsky and R. Schuhmann, Jr.: J. Met., 1957, vol. 9, pp. 981–88.
R. Hultgren, P.D. Desai., D.T. Hawkins, M. Gleiser, and K.K. Kelley: Selected Values of the Thermodynamic Properties of Binary Alloys, ASM, Metals Park, OH, 1973.
H. Okamoto, D.J. Chakrabarti, D.E. Laughlin, and T.B. Massalski: Bull. Alloy Phase Diag., 1987, vol. 8 (5), pp. 454–74.
R. Schmid: Metall. Trans. B, 1983, vol. 14B, pp. 473–81.
J.P. Neumann, T. Zhong, and Y.A. Chang: Bull. Alloy Phase Diagrams., 1984, vol. 5 (2), pp. 136–40.
P. Wu: Ph.D. Thesis, Ecole Polytechnique de Montreal, Montreal, 1992.
R.W. Ruddle, B. Taylor, and A.P. Bates: Trans. Inst. Min. Metall., 1966, vol. 75, pp. C1-C12.
J.M. Toguri and N.H. Santander: Can. Metall. Q., 1969, vol. 8, pp. 167–71.
J.M. Toguri and N.H. Santander: Metall. Trans., 1972, vol. 3, pp. 586–88.
R. Altman and H.H. Kellogg: Trans. Inst. Min. Metall., 1972, vol. 81, pp. C163-C175.
J.B.W. Bailey and F.A. Garner: Minerals Sci. Eng., 1974, vol. 6 (2), pp. 106–17.
J.R. Taylor and J.H.E. Jeffes: Trans. Inst. Min. Metall., 1975, vol. 84, pp. C18-C24.
M. Magamori, P.J. Mackey, and P. Tarassoff: Metall. Trans. B, 1975, vol. 6B, pp. 295–301.
M. Nagamori and P.J. Mackey: Metall. Trans. B, 1977, vol. 8B, pp. 39–46.
R. Altman: Trans. Inst. Min. Metall., 1978, vol. 87, pp. C23-C28.
J. Elliot, J.B. See, and W.J. Rankin: Trans. Inst. Min. Metall., 1978, vol. 87, pp. C204-C211.
T. Oishi, M. Kamuo, K. Ono, and J. Moriyama: Metall. Trans. B, 1983, vol. 14B, pp. 101–04.
H.G. Kim and H.Y. Sohn: Metall. Mater. Trans. B, 1998, vol. 29B, pp. 583–90.
A. Yazawa and M. Kameda: Technol. Rep. Tohoku Univ., 1954, vol. 19(1), pp. 1–22.
P. Spira and N. Themelis: J. Met., 1969, vol. 21 (4), pp. 35–42.
E.-B. Johansen, T. Rosenqvist, and P.T. Torgersen: J. Met., 1970, vol. 22 (10), pp. 39–47.
F. Sehnalek and I. Imris: in Advances in Extractive Metallurgy and Refining, M.J. Jones, ed., IMM, London, 1972, pp. 39–62.
U. Kuxmann and H. Bussman: Erzmetallurgy, 1974, vol. 27 (7–8), pp. 353–65.
M. Nagamori: Metall. Trans. B, 1974, vol. 5B, pp. 531–38.
F.J. Tavera and W.G. Davenport: Metall. Trans. B, 1979, vol. 10B, pp. 237–41.
G.H. Kaiura, K. Watanabe, and A. Yazawa: Can. Metall. Q., 1980, vol. 19 (2), pp. 191–200.
A. Yazawa, S. Nakazawa, and Y. Takeda: in Advances in Sulfide Smelting, H.Y. John, D.B. George, and A.D. Zunkel, eds., AIME, Warrendale, PA, 1983, pp. 99–117.
R. Shimpo, S. Goto, O. Ogawa, and I. Asakura: Can. Metall. Q., 1986, vol. 25, pp. 113–21.
Y. Takeda: in Metallurgical Processes for Early Twenty-First Century, H.Y. Sohn, ed., The Minerals, Metals & Materials Society, Warrendale, PA, 1994, pp. 453–66.
H. Li and W.J. Rankin: Metall. Mater. Trans. B, 1994, vol. 25B, pp. 79–89.
S.R. Simeonov, R. Sridhar, and J.M. Toguri: Metall. Trans. B, 1995, vol. 26B, pp. 325–34.
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Degterov, S.A., Pelton, A.D. A thermodynamic database for copper smelting and converting. Metall Mater Trans B 30, 661–669 (1999). https://doi.org/10.1007/s11663-999-0027-4
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DOI: https://doi.org/10.1007/s11663-999-0027-4