Abstract
The efficient removal of impurities, As and Sb, from recycled lead-containing materials is a key issue in the selection of the appropriate smelting technology for projects involving metal reuse. Volatilization of impurities such as As and Sb should occur as early as possible in the process, and preferably within the smelting furnace, so that they do not contaminate the industrial environment nor interfere with the operation of downstream equipment. Using of copper-zinc concentrates in the blast furnace process for recycling lead-containing materials achieves: (1) high copper extraction to matte; (2) high lead extraction to lead bullion; and (3) high zinc extraction to slag, while at the same time producing a more efficient volatilization of As and Sb. Based on both laboratory and industrial data and thermodynamic considerations, the advantages of this blast furnace process for the treatment of recycled lead-containing materials are discussed.
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Acknowledgement
The authors thank Dr. E. Wachtel, Weizmann Institute of Science, for editing assistance during the preparation of the manuscript.
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Dosmukhamedov, N., Kaplan, V. Efficient Removal of Arsenic and Antimony During Blast Furnace Smelting of Lead-Containing Materials. JOM 69, 381–387 (2017). https://doi.org/10.1007/s11837-016-2152-2
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DOI: https://doi.org/10.1007/s11837-016-2152-2