Kinetics of Direct Reduction Titanomagnetite Concentrate Briquette Produced from Rossetta-Ilmenite via Hydrogen


Reduction kinetics of titanomagnetite concentrate briquettes produced from Rossetta-llmenite ore via 1.5 liter/min hydrogen flow rate were investigated at different temperatures ranging from 600℃ to 950℃. It was found that the best reduction properties were found at 950℃, so the kinetic models shown by the briquettes at this temperature maybe: Diffusion control or Diffusion through ash layer (crank-cinslling-Broushten equation). And the apparent activation energy calculated for these models was 33.223 and 30.389 kJ/mole respectively. Also the main crystalline phases of reduced briquettes at 950℃ were metallic iron (syn. Fe), rutile (syn. TiO2) and some traces of magnetite (Fe3O4).

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El-Hussiny, N. , El-Amir, A. , Abdel-Rahim, S. , El hossiny, K. and Shalabi, M. (2014) Kinetics of Direct Reduction Titanomagnetite Concentrate Briquette Produced from Rossetta-Ilmenite via Hydrogen. Open Access Library Journal, 1, 1-11. doi: 10.4236/oalib.1100662.

Conflicts of Interest

The authors declare no conflicts of interest.


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