Abstract
Slag from the reverberatory furnace copper smelting is a significant source of solid waste. Samples of such slags from a smelter in the Western United States was reduced with carbon as a method of recovering copper, arsenic, bismuth and antimony as an alloy. Recovery was investigated for varying amounts of carbon and calcium oxide addition, time of reduction and temperatures in the range of 1473 to 1573K. Recovery of Cu, As, Bi and Sb increased with increasing reduction time, temperature and addition of C and CaO to the slags. Commercial scale implications are discussed.
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