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Accelerated decarburization of Fe-C metal alloys

United States Patent

5,632,800
May 27, 1997
View the Complete Patent at the US Patent & Trademark Office
A process for improving the rate of metal production and FeO utilization in a steelmaking process or a process combining iron-making and steelmaking in a single reactor that uses or generates Fe-C metal alloy droplets submerged in an FeO-containing slag. The process involves discharging a charge build-up (electron accumulation) in the slag at the slag-metal alloy interface by means of an electron conductor connected between the metal alloy droplets and a gas at a gas-slag interface, said gas having an oxygen partial pressure of at least about 0.01 atmosphere.
Pal; Uday B. (Needham, MA), Sadoway; Donald R. (Belmont, MA)
Massachusetts Institute of Technology (Cambridge, MA)
08/ 550,178
October 30, 1995
GOVERNMENT RIGHTS The United States Government has rights in this invention by virtue of U.S. Department of Energy Grant No. DE-FC07-89ID12847.