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).
Cite this paper
El-Hussiny, N. A. , El-Amir, A. , Abdel-Rahim, S. T. , hossiny, K. E. and Shalabi, M. E. H. (2014). Kinetics of Direct Reduction Titanomagnetite Briquette Produced from Rossetta-Ilmenite via Hydrogen. Open Access Library Journal, 1, e662. doi: http://dx.doi.org/10.4236/oalib.1100662.
Rhee, K.I. and Sohn, H.Y. (1990) The Selective Carbo-Chlorination of Iron from Titaniferous Magnetite Ore in a Fluidized Bed. Metallurgical Transactions B, 21B, 341- 347.
Longbottom, R.J., Ostrovski, O. and Park, E. (2006) Formation of Cementite from Titanomagnetite Ore. ISIJ International, 46, 641-646. http://dx.doi.org/10.2355/isijinternational.46.641
Pistorius, P.C. and Coetzee, C. (2003) Physicochemical Aspects of Titanium Slag Production and Solidification. Metallurgical and Materials Transactions B, 34, 581-588. http://dx.doi.org/10.1007/s11663-003-0027-8
El-Hazek, N., Lasheen, T.A., El-Sheikh, R. and Zaki, S.A. (2007) Hydrometallurgical Criteria for TiO2 Leaching from Rosetta Ilmenite by Hydrochloric Acid. Hydrometallurgy, 87, 45-50. http://dx.doi.org/10.1016/j.hydromet.2007.01.003
Andrew, A., Li, Y., Zhang, G.Q. and Oleg, O. (2011) Chlorin-ation of Reduced Ilmenite Concentrates and Synthetic Rutile. International Journal of Mineral Processing, 100, 166-171.
Kucukkaragoz, C.S. and Eric, R.H. (2006) Solid State Reduction of a Natural Ilmenite. Minerals Engineering, 19, 334- 337. http://dx.doi.org/10.1016/j.mineng.2005.09.015
Vijay, P.L., Venugopalan, R. and Sathiyamoorthy, D. (1996) Preoxidation and Hydrogen Reduction of Ilmenite in a Fiuidized Bed Reactor. Metallurgical and Materials Transactions B, 27, 731-738. http://dx.doi.org/10.1007/BF02915601
Park, E. and Ostrovski, O. (2004) Reduction of Titania-Ferrous Ore by Hydrogen. ISIJ International, 44, 990-1005. http://dx.doi.org/10.2355/isijinternational.44.999
Wang, Y.M., Yuan, Z.F., Matsuura, H. and Tsukihashi, F. (2009) Reduction Extraction Kinetics of Titania and Iron from an Ilmenite by H2-Ar Gas Mixtures. ISIJ International, 49, 164-170. http://dx.doi.org/10.2355/isijinternational.49.164
Dang, J., Hu, X., Zhang, G., Hou, X., Yang, X. and Chou, K. (2013) Kinetics of Reduction of Titano-Magnetite Powder by H2. High Temperature Materials and Processes, 32, 229-236.
Forsmo, S.P.E., Apelqvist, A.J., Bjorkman, B.M.T. and Samskog, P.O. (2006) Binding Mechanisms in Wet Iron Ore Green Pellets with a Bentonite Binder. Powder Technology, 169, 147-158. http://dx.doi.org/10.1016/j.powtec.2006.08.008
Forsmo, S.P.E., Samskog, P.O. and Bjorkman, B.M.T. (2008) A Study on Plasticity and Compression Strength in Wet Iron Ore Green Pellets Related to Real Process Variations in Raw Material Fineness. Powder Technology, 181, 321- 330. http://dx.doi.org/10.1016/j.powtec.2007.05.023
El-Hussiny, N.A. and Shalabi, M.E.H. (2012) Studying the Pelletization of Rosseta Ilmenite Concentrate with Coke Breeze Using Molasses and Reduction Kinetics of Produced Pellets at 800-1150℃. Science of Sintering, 44, 113-126. http://dx.doi.org/10.2298/SOS1201113E
Mohamed, F.M., Ahmed, Y.M.Z. and Shalabi, M.E.H. (2004) Briquetting of Waste Manganese Ore Sinter Fine Using Different Binding Materials. Environmental Issues and Waste Management in Energy and Mineral Production SWEMP 2004, 567-573.
Mangena, S.J. and Cann, V.M. (2007) Binderless Briquetting of Some Selected South African Prime Coking, Blend Coking and Weathered Bituminous Coals and the Effect of Coal Properties on Binderless Briquetting. International Journal of Coal Geology, 71, 303-312. http://dx.doi.org/10.1016/j.coal.2006.11.001
Shalabi, M.E. (1973) Kinetic Reduction of El-Baharia Iron Ore and Its Sinter in Static Bed by Hydrogen. El-Tabbin: M.Sc. Theses, Metallurgical Institute for Higher Studies, Cairo.
Sayed, S.A., Khalifa, G.M., El-Faramawy, E.S.R. and Shalabi, M.E.H. (2002) Kinetic Reduction of Low Manganes Iron Ore by Hydrogen. Egyptian Journal of Chemistry, 45, 47-66.
El-Gawad, H.H.A., Ahmed, M.M., El-Hussiny, N.A. and Shalabi, M.E.H. (2014) Kinetics of Reduction of Low Grade SinaiManganese Ore Via Hydrogen at 800-950℃. Open Access Library Journal, 1, e427.
Sayed, S.A., Khalifa, M.G., El-Faramawy, E.S.R. and Shalabi, M.E.H. (2001) Reductions Kinetic of El-Baharia Iron Ore in a Static Bed. Gospodarka Surowcami Mineranymi, 17, 241-245. (VII International Mineral Processingn Conference, Szczyrk, 17-19 September 2001)
El-Gawad, H.H.A., El-Hussiny, N.A., Wassf, M.A., Kalifa, M.G., Iskander, B.A. and Shalabi, M.E.H. (2009) Briquetting of Rosetta Ilmenite Ore with Different Organic Binder and Its Reduction in Hydrogen in the Temperature Range of 800-1200℃, Górnictwo i Geoinzynieria, 33, 25-40.
Wang, Y. and Yuan, Z. (2006) Reductive Kinetics of the Reaction between a Natural Ilmenite and Carbon. International Journal of Mineral Processing, 81, 133-140. http://dx.doi.org/10.1016/j.minpro.2006.07.010
Geiss, E.A. (1963) Equations and Tables for Analyzing Solid-State Reaction Kinetics. Journal of the American Ceramic Society, 46, 374-376. http://dx.doi.org/10.1111/j.1151-2916.1963.tb11754.x
