Patent ID: 6592648
Filing Date: 2003-07-15
Classification: C21B,C22B,Y02P

Abstract:
A process of reduction of iron ore and/or iron-containing waste oxides in the form of agglomerates containing carbonaceous reductant on the hearth of a furnace, including:providing a bed of agglomerates on the hearth of a furnace, said bed having a height of at least about 60 mm and having at least four layers of agglomerates, the carbonaceous reductant containing sufficient volatile matter, said volatile matter having a weight of at least about 10% of the weight of the reductant, and heating the bed of agglomerates with a radiant heat source having a temperature of at least about 1450Â° C. to cause the top of the bed to reach a temperature in the range of 1350Â° C. to 1530Â° C. to reduce iron oxides in the iron ore and/or waste oxides to metallic iron.