An Anatomy of Furnace Refractory Erosion: Evidence from a Pilot-Scale Facility

Plasma-arc technology—and DC transferred-arc technology, in particular—has its adherents.1, 2 MINTEK is one of them. Since the late 1970s, it has sought to apply this technology to the recovery of valuable metals from certain ores and from furnace slags and dusts. Commercial furnaces are now in place for the production of ferrochromium from chromite and for the smelting of ilmenite. Beginning with small-scale DC-arc furnaces, i