Abstract
Kinetic study of the chlorination of titanium dioxide (rutile and anatase) was carried out in a fixedbed reactor at temperature ranging from 800 °C to 1000 °C and normal pressure. In our experiment, titanium dioxide powder and gaseous chlorine with carbon or carbon monoxide as reductant were used. The products of the reaction are all in gaseous phase under the temperatures and pressure studied. With CO as reductant, reaction is of noncatalytic gas-solid nature and experimental data fit the shrinking core model. When using C as reductant, solid-solid reaction is involved. Reactivity is highly enhanced by solid carbon and it is concluded that an activated C-TiO2-Cl complex contributes to the enhanced reactivity. A reaction model based on phase boundary control applies to the experimental data. Thermodynamic analysis supports the experimental observation.
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References
A. Landsberg: Metall. Trans. B, 1975, vol. 6B, pp. 207–14.
A. Landsberg: Metall. Trans. B, 1977, vol. 8B, pp. 435–41.
Karl A. Smith, Steven C. Riemer, and Iwao Iwasaki: J. Met., 1982, Sept., pp. 59–61.
A. Toth, I. Berttoti, and T. Szekely: Thermochim. Acta., 1982, vol. 52, pp. 211–15.
Jen-Min Chen and Feg-Wen Chang: Ind. Eng. Chem. Res., 1990, vol. 29, pp. 778–83.
L. Freitas and F. Ajersch: Chem. Eng. Commun., 1984, vol. 30, pp. 19–33.
Anll K. Mehrotra: Ind. Eng. Chem. Process Des. Dev., 1982, vol. 21 (1), pp. 37–50.
M. Djona., E. Allain, and I. Gaballah: Metall. Mater. Trans. B, 1995, vol. 26B, pp. 703–10.
M. Del, C. Ruiz, and J.B. Rivarola: The Can. J. Chem. Eng., 1994, vol. 72, pp. 289–95.
I. Gaballah and E. Allain: Metall. Mater. Trans. B, 1995, vol. 26B, pp. 711–18.
O.L. Culberson et al.: U.S. Patent No. 2,832,668, 1958.
Rajesh P. Raval and Sharad G. Dixit: J. Chem. Tech. Biotechnol., 1979, vol. 29, pp. 107–15.
K.I. Rhee and H.Y. Sohn: Metall. Mater. Trans. B, 1990, vol. 21B, pp. 321–30.
Robinson: European Patent No. 0,096,241, 1983.
Robinson: U.S. Patent No. 4,619,815, 1986.
I. Barin and W. Schuler: Metall. Trans. B, 1980, vol. 11B, pp. 199–207.
Wendell E. Dunn, Jr.: Trans. TMS-AIME, 1960, vol. 218, pp. 6–12.
In-Ju Youn and Kyun Young Park: Metall. Trans. B, 1989, vol. 20B, pp. 959–66.
L. Zhou and H.Y. Sohn: AIChE J., 1996, vol. 42, pp. 3102–12.
Bonnie J. McBride and Sanford Gorden: NASA Reference Publication 1311, NASA-Lewis Research Center, Cleveland, OH, 1996.
Octave Levenspiel: Chemical Reaction Engineering, 2nd ed., Wiley, New York, NY, 1972.
Hilmar Rode and Vladimir Hlavacek: AIChE J., 1995, vol. 41, pp. 377–88.
J. Szekely, J.W. Evans, and H.Y. Sohn: Gas-Solid Reactions, Academic Press, New York, NY, 1976.
S.S. Tamhankar and L.K. Doraiswamy: AIChE J., 1979, vol. 25, pp. 561–82.
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Yang, F., Hlavacek, V. Carbochlorination kinetics of titanium dioxide with carbon and carbon monoxide as reductant. Metall Mater Trans B 29, 1297–1307 (1998). https://doi.org/10.1007/s11663-998-0053-7
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DOI: https://doi.org/10.1007/s11663-998-0053-7