METHOD FOR RECOVERING VALUABLE METAL FROM OXIDE

PROBLEM TO BE SOLVED: To provide a method for recovering valuable metals in oxides by charging aluminum grinding powder producted from an aluminum die casting as the waste together with electric furnace dust, rolling scale, etc., into a melting furnace and generating oxidizing and reducing reaction....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SASAMOTO HIROHIKO, TSUBONE SATOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY METALLURGY OF IRON PRETREATMENT OF RAW MATERIALS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for recovering valuable metals in oxides by charging aluminum grinding powder producted from an aluminum die casting as the waste together with electric furnace dust, rolling scale, etc., into a melting furnace and generating oxidizing and reducing reaction. SOLUTION: Mixture of the oxide produced with iron-making and steelmaking of the electric furnace dust and the rolling scale, etc., and aluminum grinding power developed from the aluminum die casting as the waste, is charged into the melting furnace, and the oxidizing and reducing reaction is generated between the oxide in the mixture and the metallic aluminum contained in the aluminum grinding powder with the heat held in the molten steel to recover the valuable metals contained in the oxides. Further, waste oil consisting essentially of heavy oil becoming unnecessary in the steelmaking plant, is added as binder, and the oxide and the aluminum grinder powder in the mixture are mutually stuck to prevent the development of the dust.