Author(s)

Naglaa Ahmed El-Hussiny¹, Atef El-Amir², Saied Thabet Abdel-Rahim³, Khaled El hossiny⁴, Mohamed El-Menshawi Hussein Shalabi^1*

¹Central Metallurgical Research and Development Institute (CMRDI), Cairo, Egypt.
²Egyptian iron and Steel Company, Helwan, Egypt.
³Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt.
⁴Nuclear Materials Authority (NMA), Cairo, Egypt.

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).

Titanomagnetite, Ilmenite Hydrogen, Reduction Kinetics

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.