Factors influencing base metal recovery from waste reverberatory furnace slags in a 50 kVA laboratory DC plasma arc furnace
Date
2004
Authors
Banda W.
Beukes N.T.
Eksteen J.J.
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Abstract
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.
Description
Keywords
Copper compounds, Energy dissipation, Ionization, Metal recovery, Plasma applications, Reduction, Silicates, Slags, Titanium oxides, Copper-dump slags, DC-furnaces, Furnace technology, Network-forming ions, Industrial furnaces
Citation
Journal of The South African Institute of Mining and Metallurgy
104
3
104
3