Research on the Melting Characteristics during the Recycling Process of Q345B Steel LF Refining Waste Slag

Geng, De-qing; Wu, Guang-liang

doi:10.1007/978-3-319-48093-0_73

De-qing Geng¹⁰ &
Guang-liang Wu¹⁰

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Abstract

The waste slag generated by the LF refining process of Q345B low alloy hot-rolled steel, still has some refining capabilities. If recycled, it can reduce environmental pollution, and save the economic costs. A research on melting Characteristics of Q345B steel LF refining waste slag was investigated by using orthogonal experimental method, and the effect laws of composition on that were analyzed. Through variance analysis and significance criterion, it is concluded that the optimum ingredient of the regenerated LF refining slag is 25%Al₂O₃, 12%CaF₂, 7%MgO and R=ω (CaO)/ω (SiO₂) =2.5. And the regression analysis is carried out by using SPSS software, to get the mathematical relationship between ingredient with high reliability and melting temperature of refining slag: T=1451.3−6.25CaF₂+2.36 R.

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Authors and Affiliations

School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
De-qing Geng & Guang-liang Wu (Professor, Doctoral supervisor)

Authors

De-qing Geng
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Guang-liang Wu
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Correspondence to Guang-liang Wu .

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Editors and Affiliations

Department of Materials Science and Engineering, Michigan Technological University, USA
Jiann-Yang Hwang (professor, Chief Energy and Environment Advisor) (professor, Chief Energy and Environment Advisor)
Wuhan Iron and Steel Group Company, China
Jiann-Yang Hwang (professor, Chief Energy and Environment Advisor) (professor, Chief Energy and Environment Advisor)
Center for Iron and Steelmaking Research in the Department of Materials Science and Engineering, Carnegie Mellon University, USA
P. Chris Pistorius (POSCO Professor and Co-Director) (POSCO Professor and Co-Director)
Glencore Technology, Australia
Gerardo R. F. Alvear F. (Technology Manager for Pyrometallurgy & Refining) (Technology Manager for Pyrometallurgy & Refining)
Applied Research Center of Material Science & Production Technologies, ITU, Turkey
Onuralp Yücel (director) (director)
Central South University, China
Liyuan Cai (professor) (professor)
School of Chemical Engineering, The University of Queensland, Brisbane, Australia
Baojun Zhao (Codelco-Fangyuan Professor) (Codelco-Fangyuan Professor)
Pyrometallurgy Committee, USA
Dean Gregurek (JOM advisor, co-organizer) (JOM advisor, co-organizer)
Department of Metallurgical Engineering, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
Varadarajan Seshadri (Prof. Emeritus) (Prof. Emeritus)

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Geng, Dq., Wu, Gl. (2016). Research on the Melting Characteristics during the Recycling Process of Q345B Steel LF Refining Waste Slag. In: Hwang, JY., et al. 7th International Symposium on High-Temperature Metallurgical Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-48093-0_73

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DOI: https://doi.org/10.1007/978-3-319-48093-0_73
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48617-8
Online ISBN: 978-3-319-48093-0
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)

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