NAPHTHENIC ACID SOLVENT EXTRACTION OF RARE-EARTH SULFATES
Technical Report
·
OSTI ID:4054805
Studies were conducted to assess the potential of naphthenic acid as a fractional extractant for rare-earth mixtures and yttrium in sulfate solution. Naphthenic acid was an effective extractant, and separntion factors were favorable in the presence of aqueous phase chelating agerts. Addition of EDTA to the naphthenic acid extraction system resulted in average separation factors of 2.2 between adjacent yttrium-group elements, whereas DTPA resulted in average separation factors of 3.5 between adjacent ceriumgroup elements. EDTA was of value in separating yttrium from the rare-earth elements. Thorium and uranium were preferentially extracted over the trivalent rare -earth elements by naphthenic acid. (auth)
- Research Organization:
- Bureau of Mines. Reno Metallurgy Research Center, Nev.
- NSA Number:
- NSA-18-017925
- OSTI ID:
- 4054805
- Report Number(s):
- BM-RI-6396
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
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Related Subjects
ACETIC ACID
AMINES
CERIUM SULFATES
CHELATES
CHEMICALS
CHEMISTRY
DTPA
DYSPROSIUM SULFATES
EDTA
EFFICIENCY
ERBIUM SULFATES
ETHYLENE
EUROPIUM SULFATES
GADOLINIUM SULFATES
HOLMIUM SULFATES
LANTHANUM SULFATES
LUTETIUM SULFATES
MIXING
NAPHTHALENE
NEODYMIUM SULFATES
ORGANIC ACIDS
PRASEODYMIUM SULFATES
PROMETHIUM SULFATES
RARE EARTHS
SAMARIUM SULFATES
SOLUTIONS
SOLVENT EXTRACTION
SULFATES
TERBIUM SULFATES
THORIUM SULFATES
THULIUM SULFATES
URANIUM SULFATES
WATER
YTTERBIUM SULFATES
YTTRIUM SULFATES
AMINES
CERIUM SULFATES
CHELATES
CHEMICALS
CHEMISTRY
DTPA
DYSPROSIUM SULFATES
EDTA
EFFICIENCY
ERBIUM SULFATES
ETHYLENE
EUROPIUM SULFATES
GADOLINIUM SULFATES
HOLMIUM SULFATES
LANTHANUM SULFATES
LUTETIUM SULFATES
MIXING
NAPHTHALENE
NEODYMIUM SULFATES
ORGANIC ACIDS
PRASEODYMIUM SULFATES
PROMETHIUM SULFATES
RARE EARTHS
SAMARIUM SULFATES
SOLUTIONS
SOLVENT EXTRACTION
SULFATES
TERBIUM SULFATES
THORIUM SULFATES
THULIUM SULFATES
URANIUM SULFATES
WATER
YTTERBIUM SULFATES
YTTRIUM SULFATES