Patent ID: 6565623
Filing Date: 2003-05-20
Classification: C22B,F27B,F27D,F27M,Y02P

Abstract:
A method for producing self-reducing agglomerates for use in producing iron comprising:producing a particle mixture comprising iron oxide containing particles and particles of a carbon containing reductant and a cement binder; adding water to said particle mixture to produce a moisture content therein of about 1 to 12%; thereafter forming said particle mixture into agglomerates; sequentially and continuously reducing said moisture content of said agglomerates by contacting said agglomerates with hot gas at a temperature of about 80 to 180Â° C. to dry said agglomerates to form dry agglomerates, contacting said dry agglomerates with water-containing hot gas at a temperature of about 70 to 110Â° C. to cure said cement to form cured agglomerates, and thereafter drying said cured agglomerates with hot gas at a temperature of about 80 to 180Â° C. to achieve a selected moisture content.