PROCESSES FOR SELECTIVE RECOVERY OF RARE EARTH METALS PRESENT IN ACIDIC AQUEOUS PHASES RESULTING FROM THE TREATMENT OF SPENT OR SCRAPPED PERMANENT MAGNETS

The invention relates to a hydrometallurgical process which makes it possible to selectively recover at least one "heavy" rare earth metal, i.e. a rare earth metal with an atomic number at least equal to 62, that is in an acidic aqueous phase resulting from the treatment of spent or scrapp...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LAUCOURNET, Richard, PACARY, Vincent, HAQUIN, Victor, MONTUIR, Marc, MIGUIRDITCHIAN, Manuel
Format:	Patent
Sprache:	eng ; fre ; ger
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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