BRIQUETTE-COMPONENT FOR BLAST-FURNACE CHARGE Russian patent published in 2004 - IPC

FIELD: ferrous metallurgy; methods of agglomeration of iron ore raw material; production of charge materials for blast furnaces.

SUBSTANCE: proposed briquette-component is obtained by molding charge including carbon-containing materials, natural iron-containing materials, fluxing additives and natural binder, for example lignosulfonate at pressure of 500-1000 Mpa. Size of materials contained in charge does not exceed 1 mm. Charge contains carbon and oxides of iron, calcium, magnesium, aluminum, silicon at the following relationship: C : Fe=0.35-0.6; CaO : SiO₂ = 0.3-1.6; MgO : Al₂O₃ = 0.25-1.5.

EFFECT: enhanced purity of briquettes.

5 cl, 1 ex