C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B23/00—Obtaining nickel or cobalt
C22B23/02—Obtaining nickel or cobalt by dry processes
C22B23/025—Obtaining nickel or cobalt by dry processes with formation of a matte or by matte refining or converting into nickel or cobalt, e.g. by the Oxford process
C—CHEMISTRY; METALLURGY
C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B15/00—Obtaining copper
C22B15/0026—Pyrometallurgy
C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
Procede pour reduire la consommation d'agents reducteurs dans un appareil de reduction-fusion des minerais metalliques, notamment dans un haut fourneau siderurgique