Abstract
The selenium contained within copper refinery slimes may be recovered advantageously by roasting at about 600°C. While roasting in air is inefficient, roasting in a sulfating atmosphere enables practically complete selenium recovery. Based on laboratory tests, a new selenium recovery process was adopted at Outokumpu Copper Refinery. In this process, sulfation is achieved by feeding sulfur dioxide and oxygen into the roasting furnace.
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O. Hyvärinen, R. Rosenberg, L. Lindroos and E. Yllö, “ Selenium and Precious Metals Recovery from Copper Anode Slimes at Outokumpu Refinery,” presented at 113th AIME Annual Meeting, Los Angeles, CA, 1984.
Selenium, ed. R.A. Zingaro and W.C. Cooper (New York: Van Nostrand Reinhold Company, 1974).
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Hyvärinen, O., Lindroos, L. & Yllö, E. Recovering selenium from copper refinery slimes. JOM 41, 42–43 (1989). https://doi.org/10.1007/BF03220271
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DOI: https://doi.org/10.1007/BF03220271