Factors Influencing Base Metal Recovery From Waste Reverberatory Furnace Slags In A50 KVA Laboratory DC Plasma Arc Furnace

Banda, W.
Organization: The Southern African Institute of Mining and Metallurgy
Pages: 8
Publication Date: Jan 1, 2004
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Paper written on project work carried out in partial fulfilment of Phd. (Process Engineering) degree* The recovery of cobalt and copper from waste slag was studied in a plasma DC-arc furnace in reducing conditions. Three fluxes, CaO,CaF2, and TiO2, were investigated for their influence on selective recovery of cobalt into an iron-rich alloy. A further investigation on the influence of furnace power on the reduction of slag to recover cobalt to the alloy showed that a change in power setting had an unexpected effect on the recovery of metals to the alloy, in that selectivity of base metal recovery over iron recovery decreased at an increased power level. Keywords: DC-furnace, reduction, nonferrous, slags
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