METHOD OF SCANDIUM SEPARATION FROM TITANIUM

hydrometallurgy of rare metals; applicable in recovery of scandium from titanium and zirconium production wastes in purification of scandium concentrates from titanium. SUBSTANCE: method is characterized by the fact that introduced into solution prior to extraction is hydrogen peroxide with weight r...

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Bibliographic Details
Main Authors SEMENOV A.A, SEMENOV S.A, REZNIK A.M
Format Patent
LanguageEnglish
Russian
Published 10.02.2001
Edition7
Subjects
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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Summary:hydrometallurgy of rare metals; applicable in recovery of scandium from titanium and zirconium production wastes in purification of scandium concentrates from titanium. SUBSTANCE: method is characterized by the fact that introduced into solution prior to extraction is hydrogen peroxide with weight ratio to titanium concentration of 0.4-11. Extraction is carried out with solution of aminophenolformaldehide oligomer in toluene, and extraction process is carried out with pH 1.8-4.1. The method increases coefficient of separation of metals up to 450 and reduces concentration of sulfuric acid in extraction system to 0.0001-0.01 mole/l (pH 1.8-4.1). EFFECT: reduced use of ecologically harmful reagents, simplified process apparatuses and improved labor conditions.
Bibliography:Application Number: RU19990114376