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C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B5/00—General methods of reducing to metals
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
C22B5/00—General methods of reducing to metals
C22B5/02—Dry methods smelting of sulfides or formation of mattes
C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
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FR3112D1903-11-091904-04-07Procédé pour l'extraction de métaux, la formation d'alliages et oxydes métalliques et la production de températures élevées
ExpiredFR3112E
(fr)