Separation and Spectrographic Determination of Rare Earths in Uranium; SEPARACAO E DETERMINACAO ESPECTROGRAFICA DE TERRAS RARAS EM URANIO

Technical Report · Wed Nov 01 00:00:00 EST 1961

OSTI ID:4791521

Abrao, A

Traces of rare earths elements, mainly those possessing high thermal neutron absorption cross sections: Gd, Dy, Er, Sm, and Eu, were determined spectrographically after chemical separation from uranium. Uranyl chloride in hydrochloric acid was extracted with TBP, the rare earths were coprecipitated with thorium ammonium fluoride, Th was removed with 8-quinolinol in chloroform, and the rare earths coprecipitated with spectrographic pure lanthanum hydroxide. The oxides were diluted with spec pure graphite and burned in a d-c arc. (auth)

• Research Organization: Brazil. Instituto de Energia Atomica, Sao Paulo
• NSA Number: NSA-16-028867
• OSTI ID: 4791521
• Report Number(s): IEA-46
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-62
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
ABSORPTION
AMMONIUM COMPOUNDS
BUTYL PHOSPHATES
CHLORIDES
CHLOROFORM
CROSS SECTIONS
DYSPROSIUM
ELECTRIC ARCS
ERBIUM
EUROPIUM
EXCITATION
GADOLINIUM
HETEROCYCLICS
HYDROXIDES
LANTHANUM HYDROXIDES
ORGANIC CHLORINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
PRECIPITATION
QUANTITATIVE ANALYSIS
QUINOLINE
RARE EARTHS
SAMARIUM
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SPECTROSCOPY
THERMAL NEUTRONS
THORIUM COMPLEXES
THORIUM FLUORIDES
TRACE AMOUNTS
URANIUM
URANYL COMPOUNDS