CHARGE TO OBTAIN BRIQUETTES FOR BLAST-FURNACE AND CUPOLA PRODUCTION OF CAST IRON Russian patent published in 2012 - IPC C22B1/245 C22B1/243 

FIELD: metallurgy.

SUBSTANCE: charge to obtain briquettes contains, by wt %: finely divided metal containing component 65-85, powdered sulfur-free carbonaceous component 10-30 and the binder 5-15. At that, as the carbonaceous the charcoal is used of fraction 50-250 mm and with an apparent density of 0.7-0.9 g/cm³. The charge may additionally comprise fine fluxing additives, preferably dolomitic clinker and/or lime in an amount of 0.5-2 wt % in the metal containing component.

EFFECT: obtaining of briquettes of high density and strength while reducing the number of sulfur-and phosphorus-containing components.

4 cl, 1 tbl