Abstract
Experiments were carried out by adding NaF as catalyst in a Ar atmosphere to study the isothermal reduction kinetics of vanadium titano-magnetite carbon composite pellets under high temperature in the range from1473 to 1673K. By analyzing reduction mechanism, it was found that the rate controlling step was gas diffusion, and the activation energy was 178.39kJ•mol-1 without none catalysts. Adding NaF of 3% to vanadium titano-magnetite carbon composite pellets can decrease the apparent activation energy of reduction, and the decrease extent was 15.79kJ•mol-1. In addition, temperature is an important factor influencing on reaction rate.
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© 2015 TMS (The Minerals, Metals & Materials Society)
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**ang-dong, X., Jian-liang, Z., **ng-le, L., Zhen-yang, W., Ke-xin, J. (2015). Strengthen Reduction Process of Vanadium Titano-Magnetite Adding NaF Under High Temerature. In: TMS 2015 144th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48127-2_110
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DOI: https://doi.org/10.1007/978-3-319-48127-2_110
Publisher Name: Springer, Cham
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