PROCEDIMENTO PER LA SEPARAZIONE DI METALLI NON FERROSI DA MATERIALI SECONDARI CONTENENTI FERRO

A method for separating non-ferrous metals from ferruginous secondary substances such as residues and slurries from blast furnaces, steel mills, rolling mills, and the like. In accordance with the invention, a layer of the secondary substances is combined in agglomerated form with at least one layer...

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Bibliographische Detailangaben
Hauptverfasser:	RAO CHATTY, HILBRANS HERMANN
Format:	Patent
Sprache:	ita
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A method for separating non-ferrous metals from ferruginous secondary substances such as residues and slurries from blast furnaces, steel mills, rolling mills, and the like. In accordance with the invention, a layer of the secondary substances is combined in agglomerated form with at least one layer of a sinterable mixture. The non-ferrous metals are volatilized off and recovered in the form of an oxide dust. The recovered dust is separated into at least two fractions having different non-ferrous metal contents and then the dust fractions are sintered with the sinterable mixture.