REDUCING METHOD FOR CHROMIUM ORE

PURPOSE:To reduce chromium ore at a low cost and high degree by adding a binder to a pulverized powder mixture composed of the chromium ore and carbonaceous reducing agent, molding the mixture to a lump shape, forming a protective film on the surface and subjecting the molding to a heating treatment...

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Bibliographische Detailangaben
Hauptverfasser:	MINAGAWA TSUTOMU, UEMURA TADASHI, SASABE KIICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To reduce chromium ore at a low cost and high degree by adding a binder to a pulverized powder mixture composed of the chromium ore and carbonaceous reducing agent, molding the mixture to a lump shape, forming a protective film on the surface and subjecting the molding to a heating treatment in a tunnel kiln. CONSTITUTION:The pulverized powder mixture preferably sized about =80% is thus obtd.