Abstract
The reduction process of MgO-fluxed pellets was investigated and compared with traditional acidic pellets in this paper. Based on the piston flow concept and experimental data, a kinetic model fitting for the gas-solid phase reduction of pellets in tubular reactors (blast furnace, BF) was built up, and the equations of reduction reaction rate were given for pellets. A series of reduction experiments of pellets were carried out to verify the model. As a result, the experimental data and calculated result were fitted well. Therefore, this model can well describe the gas-solid phase reduction process and calculate the reduction reaction rate of pellets. Besides, it can give a better explanation that the reduction reaction rate (reducibility) of MgO-fluxed pellets is better than that of traditional acidic pellets in BF.
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Gao, Qj., Shen, Fm., Jiang, X. et al. Gas-solid reduction kinetic model of MgO-fluxed pellets. Int J Miner Metall Mater 21, 12–17 (2014). https://doi.org/10.1007/s12613-014-0859-z
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DOI: https://doi.org/10.1007/s12613-014-0859-z