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
N1 - Funding Information:
Acknowledgements This work was partially supported by the National Natural Science Foundation of China under Grants 51774337, 51504297, 51811530108 and 51881340420, the Science and Technology Major Project of Gansu Province, China, under Grant 1602FKDC007, the Research Fund Program of Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resources under Grant SK-201801, the Innovation-Driven Program of Central South University under Grant 2016CXS021, the Shenghua Lieying Program of Central South University under Grant 502035001, the Natural Science Foundation of Hunan Province, China, under Grant 2017JJ3383, the Hunan Provincial Co-Innovation Centre for Clean and Efficient Utilization of Strategic Metal Mineral Resources under Grant 2014-405, the Fundamental Research Funds for the Central Universities of Central South University under Grant 2018zzts222, and the Open-End Fund for the Valuable and Precision Instruments of Central South University under Grant CSUZC201706.
Publisher Copyright:
© 2019, The Minerals, Metals & Materials Society.
PY - 2019
Y1 - 2019
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 (Fe3O4), hausmannite (Mn3O4) and chromate spinel (FeCr2O4). 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 CaCr2O4. 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 (Fe3O4), hausmannite (Mn3O4) and chromate spinel (FeCr2O4). 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 CaCr2O4. 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
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 - Hwang, Jiann-Yang
A2 - Yücel, Onuralp
A2 - Zhao, Baojun
A2 - Gregurek, Dean
A2 - Jiang, Tao
A2 - Peng, Zhiwei
A2 - Padilla, Rafael
A2 - Downey, Jerome P.
A2 - Keskinkilic, Ender
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 -
