PROCESS FOR THE RECOVERY OF RARE EARTH METALS FROM WASTE RESIDUES FROM TiO2 PRODUCTION

A process is provided for recovery of scandium and certain other rare earth metals from titanium dioxide production residue The process comprises treating the residue with a calcium source at a temperature below 30°C to selectively co-precipitate calcium sulphate, scandium and other metals from solu...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	MAKANYIRE, Terence
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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