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Sulfur Removal from Spent Ladle Refining Furnace Slag at High Temperature

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To develop an effective method for removing sulfur from spent refining slag at high temperature, the slag was treated in argon atmosphere using desulfurization ash as desulfurization reagent. Experimental results revealed that at 1773 K, molar ratio of CaS to CaSO4 + CaSO3 of 3:1, and reaction time of 2 hours, sulfur removal efficiency reached a maximum of 67.9 pct. The optimal ratio indicates the reaction of CaS and CaSO4 + CaSO3 to generate S2 may predominante during processing.

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The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Project No. 51774001).

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Authors and Affiliations

  1. School of Metallurgical Engineering, Anhui University of Technology, Maanshan, 243032, Anhui, P.R. China

    Liushun Wu, Kunlong Liu, Wei Xu, Jue Wang, Haichuan Wang & Yuanchi Dong

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  1. Liushun Wu
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  2. Kunlong Liu
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  3. Wei Xu
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Correspondence to Liushun Wu.

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Manuscript submitted November 20, 2020; accepted January 27, 2021.

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Wu, L., Liu, K., Xu, W. et al. Sulfur Removal from Spent Ladle Refining Furnace Slag at High Temperature. Metall Mater Trans B 52, 590–593 (2021). https://doi.org/10.1007/s11663-021-02098-6

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  • DOI: https://doi.org/10.1007/s11663-021-02098-6

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