FR523680A - Perfectionnements au traitement des minerais et autres matières contenant du métal, et au recouvrement des constituants précieux
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Perfectionnements au traitement des minerais et autres matières contenant du métal, et au recouvrement des constituants précieux
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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
C22B1/00—Preliminary treatment of ores or scrap
C22B1/02—Roasting processes
C22B1/08—Chloridising roasting
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FR523680A1919-09-301920-09-06Perfectionnements au traitement des minerais et autres matières contenant du métal, et au recouvrement des constituants précieux
ExpiredFR523680A
(fr)
Perfectionnements aux procédés de traitement de la houille et autres matières contenant du carbone dans l'intention d'en extraire certains produits