PROCEDE POUR LA RECUPERATION DE METAUX NON FERREUX A PARTIR DE MATIERES SULFUREES ET PRODUITS OBTENUS

PROCEDE POUR LA RECUPERATION DE METAUX NON FERREUX A PARTIR DE MATIERES SULFUREES ET PRODUITS OBTENUS

A method for recovering copper and/or other non-ferrous metals from sulphidic raw material by roasting the material to a substantially sulphur-free state and then in a separate furnace sulphatize the roasted material into a form of a readily soluble sulphate and/or basic sulphate and then leaching t...

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Hauptverfasser: J.-O. JANSSON, T.K. MIOEN, K.G. GORLING, I.A.O. EDENWALL
Format: Patent
Sprache:fre
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
FERROUS OR NON-FERROUS ALLOYS
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator J.-O. JANSSON
T.K. MIOEN
K.G. GORLING
I.A.O. EDENWALL
description A method for recovering copper and/or other non-ferrous metals from sulphidic raw material by roasting the material to a substantially sulphur-free state and then in a separate furnace sulphatize the roasted material into a form of a readily soluble sulphate and/or basic sulphate and then leaching the sulphatized material with an aqueous sulphuric acid solution. Copper and/or other non-ferrous metals are recovered from the spent leaching solution. The leaching solution is after said recovering recirculated to the leaching stage and to the roasting stage.
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subjects CHEMISTRY
COMPOUNDS THEREOF
FERROUS OR NON-FERROUS ALLOYS
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title PROCEDE POUR LA RECUPERATION DE METAUX NON FERREUX A PARTIR DE MATIERES SULFUREES ET PRODUITS OBTENUS
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