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Experimental Study on Oxidative Desulfurization of Molten Copper Slag by Different Oxidants

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Abstract

We study the oxidative desulfurization of copper slag at temperatures ranging from 1250 °C to 1450 °C using experimental copper slag as raw material. This is significantly different from the oxidative desulfurization process of low sulfur slag (wS < 0.2 pct) at temperatures > 1500 °C compared with the literature. Based on thermodynamic equilibrium calculation and an experimental study of oxidative desulfurization, desulfurization effects of different oxidants are compared, and the basic principles and rules of oxidative desulfurization are explored to solve the problem of high S content in copper slag in the process of comprehensive utilization.

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Acknowledgments

Funding: This study was supported by the National Natural Science Foundation of China (Grant Nos. 51474024, 51674021).

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Authors and Affiliations

  1. School of Metallurgical and Ecological Engineering, University of science and technology Beijing, Beijing, 100083, China

    Hongyang Wang, Rong Zhu & Yu Mi

  2. Chinese Enfei Engineering Technology Co. Ltd, Beijing, 100038, China

    Yun Wang

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  1. Hongyang Wang
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  2. Rong Zhu
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  3. Yun Wang
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Correspondence to Hongyang Wang.

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Manuscript submitted June 23, 2019.

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Wang, H., Zhu, R., Wang, Y. et al. Experimental Study on Oxidative Desulfurization of Molten Copper Slag by Different Oxidants. Metall Mater Trans B 51, 543–557 (2020). https://doi.org/10.1007/s11663-020-01789-w

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  • DOI: https://doi.org/10.1007/s11663-020-01789-w

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