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NICHOLS COPPER CO
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NICHOLS COPPER CO
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Publication of FR710988ApublicationCriticalpatent/FR710988A/fr
C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B1/00—Preliminary treatment of ores or scrap
C22B1/02—Roasting processes
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Environmental & Geological Engineering
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FR710988D1931-02-101931-02-10Perfectionnements aux procédés et aux appareils pour le traitement des minerais contenant des sulfures
ExpiredFR710988A
(fr)