METHOD OF CONTINUOUS FUSION OF SULFIDE MATERIALS Russian patent published in 1994 - IPC

FIELD: processing of sulfide polymetallic materials, for instance, copper, nickel ones in the process of fusion in melt. SUBSTANCE: in method of continuous fusion of sulfide materials including their change, bath blow by oxygen blast through tuyeres with supply of carbon-containing fuel with formation of sulfide and oxidized phases and their results with supply of additional carbon-containing fuel to the above-tuyere zone in stoichiometric relation to the amount of sulfur removed from the charge when matte of preset composition is obtained, gaseous carbon-containing fuel is supplied to the above tuyere zone with a contact of at least 20% of carbon monoxide at a temperature of at least 700 C; it is obtained by combustion of carbon-containing material in liquid oxidized phase at its blow by oxygen blast. EFFECT: facilitated procedure. 1 tbl