Abstract
The kinetics of the reduction of FeO and FeWO4 have been investigated by thermogravimetric method in the temperature ranges of 1023 to 1173 K and 823 to 1173 K, respectively. The experiments were conducted under isothermal conditions in flowing hydrogen gas. The activation energies for the reduction of the pure iron oxide and iron tungstate were found to be 42.7 kJ/mol and 85.1 kJ/mol, respectively. The results obtained show that the reduction of iron tungstate proceeds in one single step from FeWO4 to Fe3W2 and W. The experimental data are compared with the information available in the literature, and the correlations between the results obtained in pure oxide systems and complex systems are discussed.
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J.A. Bustnes, Du Sichen, and S. Seetharaman: Metall Trans. B, 1993, vol. 24B, pp. 475–80.
S. Sridhar, Du Sichen, and S. Seetharaman: Metall. Mater. Trans., 1994, vol. 25B, pp. 391–96.
S. Sridhar, Du Sichen, and S. Seetharaman: Z. Metallkd., 1994, vol. 85, pp. 616–20.
J.A. Bustnes, Du Sichen, and S. Seetharaman: Metall. Mater. Trans., 1994, vol. 26B, pp. 547–52.
J.A. Bustness, Du Sichen, and S. Seetharaman: Proc. EPD Congr., TMS Annual Meeting, San Francisco, CA, Feb.–Mar. 1994, TMS, Warrendale, PA, 1994, pp. 581–600.
A. Bose and R.J. Dowling: Proc. Advanced Composites ’93, Int. Conf. on Advanced Composite Materials, Wollongong, Australia, Feb. 1993, pp. 1279–85.
S. Hayashi and Y. Iguchi: Iron Steel Inst. Jpn., 1994, vol. 34 (7) pp. 555–61.
A.A. El-Geassy, F.O. El-Kashif, M.I. Nasr, and A.A. Omar: Iron Steel Inst. Jpn. Int., 1994, vol. 34, pp. 541–47.
E.T. Turkdogan and J.V. Vinters: Metall Trans., 1972, vol. 3, pp. 1561–74.
P.F.J. Landler and K.L. Komarek: Trans. TMS-AIME, 1966, vol. 236, pp. 138–49.
J.O. Edstrom: J. Iron Steel Inst., 1953, vol. 175, pp. 289–304.
O. Sjödén, S. Seetharaman, and L.-I. Staffansson: Metall Trans. B, 1986, vol. 17B, pp. 179–84.
D. Sichen and S. Seetharaman: Metall Trans. B, 1992, vol. 23B, pp. 317–24.
N.G. Shmahl and H. Dillenburg: J. Phys. Chem. (Wiesbaden), 1972, vol. 77, p. 113.
Thermochemical Properties of Inorganic Substances, 2nd ed., O. Knacke, O. Kubachewski, and K. Hesselman, eds., Springer-Verlag, Berlin, 1991.
Construction of Binary Alloys, F.A. Shunk, ed., McGraw-Hill Book Company, New York, NY, 1969, 2nd suppl.
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Bustnes, J.A. Kinetic studies of the reduction of FeO and FeWO4 by hydrogen. Metall Mater Trans B 28, 613–618 (1997). https://doi.org/10.1007/s11663-997-0033-3
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DOI: https://doi.org/10.1007/s11663-997-0033-3