Abstract
The reduction of carbon-bearing manganese briquettes in a slag bath was experimentally investigated at temperatures ranging from 1550 to 1650 °C. Both the internal temperature and the microstructure evolution of the briquettes were analyzed by differential thermal analysis, scanning electron microscopy and energy-dispersive spectrum analysis, and the smelting reduction mechanism of the carbon-bearing manganese briquettes in the slag bath was further elaborated. The results indicated that the smelting reduction of the briquettes in the slag bath could be divided into three stages, and the aggregation and growth of the metallic particles during the reduction were significantly affected by the slag temperature. Under the experimental conditions, the reduction speed at the initial stage of the carbon-bearing manganese briquettes smelting reduction was controlled by the chemical reaction, whereas the reaction speeds at both the middle and following stages were limited by gaseous diffusion.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. Kaneko, T. Matsuzaki, T. Kugimiya, K. Ide, M. Kumakura, A. Kasama, Tetsu-to-Hagane 79 (1993) 941–947.
H. Suito, R. Inoue, ISIJ Int. 35 (1995) 266−271.
C.F. Zhang, J.B. Chang, S.W. Li, Z.J. Han, D.G. Ma, S.X. Liu, Y.B. Xiang, Steelmaking 29 (2013) No. 6, 12−15.
Y.M. Gao, J.Q. Zhao, T. Xing, J. Wuhan Univ. Sci. Technol. 34 (2011) 1−4.
R.S. Li, R.M. Feng, G.Z. Wei, J.M. Li, Steelmaking 20 (2004) No. 1, 13−15.
Z.L. Xue, Y. Yu, W. Wang, The process of direct alloying steelmaking with manganese oxide composite mass used in a compound blowing converter, China, ZL201010245102.1, 2010.
B. Zhang, Z.L. Xue, T.T. Zhu, J. Dong, J. Iron Steel Res Int. 22 (2015) 402−407.
J. Chen, L. Li, G. Chen, J. Peng, C. Srinivasakannan, J. Alloy. Compd. 699 (2017) 430−435.
J. Chen, P.F. Tian, X.A. Song, N. Li, J.X. Zhou, J. Iron Steel Res. Int. 17 (2010) No. 3, 13−20.
M.S. Chu, Z.C. Wang, Z.G. Liu, J.P. Lu, Chin. J. Process Eng. 10 (2010) 121−126.
Y.F. Shen, Q.G. Xue, G. Wang, X.F. She, J.S. Wang, Chin. J. Process Eng. 15 (2015) 252−258.
C.F. Lyu, D.L. Shang, Q. Sun, L. Kang, Z.Y. Qi, Steelmaking 31 (2015) No. 1, 40−43.
Y.B. He, G. Wei, Q.J. Gao, Z.S. Zou, J. Northeast. Univ. 35 (2014) 804−808.
S.K. Dey, B. Jana, A. Basumallick, ISIJ Int. 33 (1993) 735−739.
S.F. Dai, W. Wu, D. Ma, X.D. Zhang, P. Wang, Iron and Steel 52 (2017) No. 8, 35−42.
M.S. Chu, Study on super high efficiency operations of blast furnace based on multi-fluid model, Tohoku University, Sendai, Japan, 2004.
Y.W. Tian, X.J. Zai, K.R. Liu, Physical chemistry in metallurgy, Chemical Industry Press, Beijing, 2007.
R.F. Wei, J.X. Li, J.M. Li, H.M. Long, P. Wang, G. Gao, G.P. Lin, Chin. J. Process Eng. 11 (2011) 429−435.
Acknowledgements
The authors gratefully acknowledge the financial support for this work from the Specialized Research Fund for the National Natural Science Foundation of China (No. 51504090), the Open Fund of the State Key Laboratory of Refractories and Metallurgy in the Wuhan University of Science and Technology (No. G201603) and the Doctoral Program of Higher Education (No. 20134219110004).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhang, B., Wang, Dp., Chen, B. et al. Experimental study on smelting reduction of carbon-bearing manganese briquettes in slag bath. J. Iron Steel Res. Int. 25, 417–425 (2018). https://doi.org/10.1007/s42243-018-0042-2
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s42243-018-0042-2