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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 828 pages |
| ISBN: | 978-0-9879917-0-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Smelting Applications Of DC Arc Furnaces
Rodney Jones1;1MINTEK, Randburg, South Africa;
Type of Paper: Invite
Id Paper: 396
Topic: 4
Abstract:
Sustainable smelting requires technology that can process metallurgically complex, low-grade, fine ores, and waste materials, as well as the more desirable ores. Electric smelting in an open-arc open-bath direct current (DC) furnace provides the required flexibility for this type of processing. DC arc furnace technology was first used for smelting applications in the mid 1980s, and has subsequently been applied industrially to the smelting of chromite for the production of ferrochromium, the smelting of ilmenite to produce titania slag and pig iron, and the recovery of cobalt from non-ferrous smelter slags. Newer applications of this technology involve the smelting of nickel laterites to produce ferronickel, and the smelting of oxidised concentrates containing platinum group metals (PGMs).