METHOD OF SEPARATING SCANDIUM FROM TITANIUM

METHOD OF SEPARATING SCANDIUM FROM TITANIUM

FIELD: rare metals technology. SUBSTANCE: invention provides method that can be used when separating scandium from titanium/zirconium production waste and when purifying scandium concentrates to remove titanium. To that end, hydrogen peroxide is added to hydrochloric acid solution containing titaniu...

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Bibliographische Detailangaben
Hauptverfasser: GLADIKOVA L.A, SEMENOV S.A, REZNIK A.M
Format: Patent
Sprache:eng ; rus
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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Beschreibung
Zusammenfassung:FIELD: rare metals technology. SUBSTANCE: invention provides method that can be used when separating scandium from titanium/zirconium production waste and when purifying scandium concentrates to remove titanium. To that end, hydrogen peroxide is added to hydrochloric acid solution containing titanium and scandium at weight ratio of hydrogen peroxide to present titanium (0.8-10):1. Solution is neutralized and then extracted with 0.25 M solution of N-(2-hydroxy-5- nonylbenzyl)dihydroxyethylamine in octanol during 30 min at pH 2.25-3.45. EFFECT: increased coefficient of separation from 450 to 26440. 5 ex