Synthesis of chromium and ferrochromium alloy in molten salts by the electro-reduction method

  • Xinlei Ge Nanjing University of Information Science and Technology

Abstract


In this work, we successfully applied the Fray-Farthing-Chen Cambridge electro-reduction process on the preparation of chromium from chromium oxide, and for the first time, the synthesis of ferrochromium alloy from mixed chromium and iron oxides and the chromite ore in molten calcium chloride. The present work systematically investigated the influences of sintered temperature, electrochemical potential, electrolysis temperature and time on the products by using a set of advanced characterization techniques, including XRD and SEM/EDS analyses. In particular, our results show that this process is energy-friendly and technically-feasible for the direct extraction of ferrochromium alloy from chromite ore. Our findings thus provide useful insights for the design of a novel green process to produce ferrochromium alloy from low-grade chromite ore or stainless steel slag.

Author Biography

Xinlei Ge, Nanjing University of Information Science and Technology
Department of Environmental Science and Technology

References

N. P. Lyakishev, M. I. Gasik, Metallurgy of Chromium, Allerton Press, New York, 1998.

Y. Ding, Z. Ji, C. R. Yang, Production and application of Chromate, Beijing, 2003.

G. Z. Chen, D. J. Fray, T. W.Farthing, Nature. 407 (2000) 361-364

D. H. Wang,, X. B. Jin, G. Z.Chen, Annu. Rep. Prog. Chem.- Sec. C. 104 (2008) 189-234.

G. Elena, G. Z. Chen, D. J. Fray, Electrochim. Acta. 49 (2004) 2195-2208.

G. Z. Chen, E. Gordo, D. J.Fray, Metall. Mater. Trans. B. 35B (2004) 223-233.

H. Chen, X. B. Jin, G. Z. Chen, J. Solid State Electrochem. 18 (2014) 3317-3325.

G.M. Li, D. H. Wang, X. B. Jin, G. Z. Chen, Electrochem. Commun. 9 (2007) 1951-1957.

X. L. Ge, X. D. Wang, S. Seetharaman, Electrochim. Acta. 54 (2009) 4397-4402.

X. L. Ge, O. Grinder, S. Seetharaman, Mineral Proc. Extra. Metall. (Trans. Inst. Min. Metall., Sect. C). 119 (2010) 27-32.

X. L. Ge, S. Seetharaman, Mineral Proc. Extra. Metall. (Trans. Inst. Min. Metall., Sect. C). 119 (2010) 93-100.

X. L. Ge, S. J. Xiao, G. M. Haarberg, S. Seetharaman, Mineral Proc. Extra. Metall. (Trans. Inst. Min. Metall., Sect. C). 119 (2010) 163-170.

L. D. Teng, S. Seetharaman, M. Nzotta, P. L. Dong, X. L. Ge, L. J. Wang, H. J. Wang, A. Chychko. Archiv. Metallur. Mater. 55 (2010) 1097-1104.

G. H. Qiu, D. H.Wang, X. B.Jin, G. Z. Chen, Electrochimi. Acta. 51 (2006) 5785-5793.

Published
2015/12/18
How to Cite
Ge, X. (2015). Synthesis of chromium and ferrochromium alloy in molten salts by the electro-reduction method. Journal of Mining and Metallurgy, Section B: Metallurgy, 51(2), 185-191. Retrieved from https://aseestant.ceon.rs/index.php/jmm/article/view/7399
Issue
Vol. 51 No. 2 (2015)
Section
Original Scientific Paper

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