Kinetics of Metallurgical Reactions

The rate of pyrometallurgical processes is often controlled by mass transfer in the condensed and/or gaseous phases. In some instances, the kinetics of reactions at interfaces play a more significant role in determining the overall rate.

Fundamental studies on the kinetics of reactions between carbonaceous reactants and molten slags or alloys have led to the development of a body of knowledge and an improved understanding of processes. Such knowledge and fundamental undersatnding could readily be used to assess and optimise the performance of pyrometallurgical processes.

Research Highlights

Publications

  • Wright, S., Sun, S., and Jahanshahi, S. (2023). Rate of removal of lead from copper matte by submerged gas injection. Mineral Processing and Extractive Metallurgy, 132(2), 99–109.

  • Xing, X., Jahanshahi, S., Yang, J., and Ostrovski, O. (2018). Dissolution of carbon from coke and char in liquid Fe-C alloys. Archives of Materials Science and Engineering, 92(1), 22–27.

  • Sun, S.Y., and Jahanshahi, S. (2000). Redox equilibria and kinetics of gas-slag reactions. Metallurgical and Materials Transactions B, 31(5), 937–943.

  • Sayadyaghoubi, Y., Wright, S., Sun, S.Y., and Jahanshahi, S. (1993). Aspects of rate processes in smelting. Chemical Engineering in Australia, 18(3), 15–18.

  • Jahanshahi, S. and Jeffes, J.H.E. (1983). The Vaporisation of Iron-phosphorus Alloys in Gases of Various Oxygen Potentials. Ironmaking and Steelmaking, 10, pp. 155–160.

  • Tran, T., Sun, S.Y., and Jahanshahi, S. (1997). Interfacial reactions of low iron-containing slag with CO2-CO mixtures. 5th International Conference on Molten Slags, Fluxes and Salts, pp. 115–123.

  • Dal, I., Jahanshahi, S., and Rankin, W.J. (1996). The effects of temperature and iron oxide concentration on the rate of reduction of ZnO from slag by CO-CO2. 3rd Australian Melt Chemistry Symposium, pp. 133–136.

  • Wright, S., Jahanshahi, S., and Errington, W.J. (1994). Reduction kinetics of slags produced from recycling of lead batteries. In: Nilmani, M., Lehner, T., and Rankin, W.J. (eds.), Pyrometallurgy for Complex Materials and Wastes, TMS, pp. 121–133.

  • Sayadyaghoubi, Y., Tran, T., Sun, S.Y., and Jahanshahi, S. (1994). Kinetics of redox reactions in calcium ferrite melts. 6th AusIMM Extractive Metallurgy Conference, pp. 219–223.

  • Jahanshahi, S., and Player, R.L. (1989). Process chemistry studies of the ISASMELT lead reduction process. Non-Ferrous Smelting Symposium, pp. 33–40.