Patent ID: 6413295
Filing Date: 2002-07-02
Classification: C21B,Y02P

Abstract:
A method for producing solid iron and carbon product from iron oxide material containing carbon compounds, comprising the steps of:(a) providing a rotary hearth furnace, having a hearth layer surface; (b) feeding agglomerates containing iron oxide and carbon materials onto said hearth layer surface; (c) heating said agglomerates containing iron oxide and carbon materials; (d) reducing said agglomerates containing iron oxide and carbon materials; (e) forming liquid iron and carbon globules and slag particulates on said hearth layer surface, said globules separating from said slag particulates; (f) cooling said liquid iron and carbon globules with a cooling surface, creating solid iron and carbon buttons; (g) discharging solid iron and carbon buttons from said furnace; and (h) removing slag particulates from said furnace.