METHOD FOR COLLECTING VALUABLE METAL FROM NICKEL-HYDROGEN SECONDARY CELL

A method comprising the steps of preparing crushed material by crushing nickel-hydrogen secondary cells; separating alkalis, organic substances, and iron from the crushed substance in order to obtain a separated material from which at least alkalis, organic substances, and iron are separated; burnin...

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Bibliographische Detailangaben
Hauptverfasser:	OKADA, CHIKARA, SANTOKU METAL INDUSTRY CO., LTD, KITAZUME, NOBUYUKI, SANTOKU METAL IND. CO., LTD, KANEKO, AKIHITO, SANTOKU METAL INDUSTRY CO., LTD
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A method comprising the steps of preparing crushed material by crushing nickel-hydrogen secondary cells; separating alkalis, organic substances, and iron from the crushed substance in order to obtain a separated material from which at least alkalis, organic substances, and iron are separated; burning the separated material to produce oxides of valuable metal to be collected; and processing the oxides by a molten salt electrolysis method by use of a molten salt bath for electrolysis. By this collection method, it is possible to efficiently collect electrode materials and others which are usable for nickel-hydrogen secondary cells. Further, compared to separation, refining, and smelting by ordinary chemical processings, this method realizes collection in a large quantity at a low cost.