TY - GEN
T1 - Thermodynamic Analysis of Carbothermic Reduction of Electric Arc Furnace Dust
AU - Ye, Qing
AU - Peng, Zhiwei
AU - Ye, Lei
AU - Wang, Liancheng
AU - Augustine, Robin
AU - Lee, Joonho
AU - Liu, Yong
AU - Liu, Mudan
AU - Rao, Mingjun
AU - Li, Guanghui
AU - Jiang, Tao
PY - 2019/1/1
Y1 - 2019/1/1
N2 -
Electric arc furnace (EAF) dust is a kind of secondary resource which contains multiple metallic elements, including Fe, Mn and Cr. Pyrometallurgical processes for recovering metal elements from EAF dust have been investigated for many years although they are suffered from high energy consumption due to the spinel-structured components of EAF dust. In this study, the thermodynamic analysis of carbothermic reduction of EAF dust was performed. The main components of EAF dust were magnetite (Fe
3
O
4
), hausmannite (Mn
3
O
4
) and chromate spinel (FeCr
2
O
4
). The gangue minerals were mainly composed of magnesium silicates. The thermodynamic analysis indicated that magnetite and hausmannite can be reduced to metallic iron and MnO, respectively. Meanwhile, the chromate spinel will be reduced to chromium oxide and then to form CaCr
2
O
4
. The results also demonstrated that the gangue components can promote the separation of Fe and Cr, agreeing well with the experimental results.
AB -
Electric arc furnace (EAF) dust is a kind of secondary resource which contains multiple metallic elements, including Fe, Mn and Cr. Pyrometallurgical processes for recovering metal elements from EAF dust have been investigated for many years although they are suffered from high energy consumption due to the spinel-structured components of EAF dust. In this study, the thermodynamic analysis of carbothermic reduction of EAF dust was performed. The main components of EAF dust were magnetite (Fe
3
O
4
), hausmannite (Mn
3
O
4
) and chromate spinel (FeCr
2
O
4
). The gangue minerals were mainly composed of magnesium silicates. The thermodynamic analysis indicated that magnetite and hausmannite can be reduced to metallic iron and MnO, respectively. Meanwhile, the chromate spinel will be reduced to chromium oxide and then to form CaCr
2
O
4
. The results also demonstrated that the gangue components can promote the separation of Fe and Cr, agreeing well with the experimental results.
KW - Carbothermic reduction
KW - EAF dust
KW - Ferrite
KW - Thermodynamic analysis
UR - http://www.scopus.com/inward/record.url?scp=85064869030&partnerID=8YFLogxK
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U2 - 10.1007/978-3-030-05955-2_11
DO - 10.1007/978-3-030-05955-2_11
M3 - Conference contribution
AN - SCOPUS:85064869030
SN - 9783030059545
T3 - Minerals, Metals and Materials Series
SP - 117
EP - 124
BT - 10th International Symposium on High-Temperature Metallurgical Processing, 2019
A2 - Gregurek, Dean
A2 - Jiang, Tao
A2 - Peng, Zhiwei
A2 - Padilla, Rafael
A2 - Zhao, Baojun
A2 - Yücel, Onuralp
A2 - Keskinkilic, Ender
A2 - Hwang, Jiann-Yang
A2 - Downey, Jerome P.
PB - Springer International Publishing
T2 - 10th International Symposium on High-Temperature Metallurgical Processing held at the TMS Annual Meeting and Exhibition, 2019
Y2 - 10 March 2019 through 14 March 2019
ER -