PROCESS FOR THE PRESSURE OXIDATION LEACHING OF NON-FERROUS METAL CONTAINING SULPHIDIC MATERIAL

PROCESS FOR THE PRESSURE OXIDATION LEACHING OF NON-FERROUS METAL CONTAINING SULPHIDIC MATERIAL

Temperature control in a pressurised oxidation leach for the recovery of non-ferrous metals from a sulphidic material is exercised by carrying out the leach in a multi-compartment autoclave (12), the first compartment (14) of which contains a greater volume of the aqueous acidic leach slurry than an...

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Bibliographische Detailangaben
1. Verfasser: WEIR, DONALD R
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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Zusammenfassung:Temperature control in a pressurised oxidation leach for the recovery of non-ferrous metals from a sulphidic material is exercised by carrying out the leach in a multi-compartment autoclave (12), the first compartment (14) of which contains a greater volume of the aqueous acidic leach slurry than any of the other compartments (16, 18, 20, 22). By this technique external heat input into the first compartment and cooling of the subsequent compartments is minimised.