Use of Dowex A-1(H/sup +/) and ZeoKarb 226(H/sup +/) for the sequential separation of uranium, thorium, and rare earths in monazite

Journal Article · Sat Jan 01 00:00:00 EST 1977 · Sep. Sci.; (United States)

OSTI ID:7209096

Iyer, S G; Padmanabhan, P K; Venkateswarlu, C

When a mixture of rare earths, thorium, and uranium at pH 1.0 in sulfate medium is passed through a column (1.5 x 12 cm) of Dowex A-1(H/sup +/), rare earths pass through. Then thorium is eluted with 6N hydrochloric acid and subsequently the uranium with 2N nitric acid. When the mixture at pH 2.0 in nitrate medium and in the presence of 1,10-phenanthroline is fed to a column of ZeoKarb 226(H/sup +/), the rare earths pass through. Then thorium is eluted with 0.05M EDTA at pH 4.5 and subsequently the uranium with 2N hydrochloric acid. These separation schemes are successfully applied to the analysis of monazite samples.

• Research Organization: Bhabha Atomic Research Centre, Bombay
• OSTI ID: 7209096
• Journal Information: Sep. Sci.; (United States), Vol. 12:2
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
MONAZITES
QUANTITATIVE CHEMICAL ANALYSIS
RARE EARTHS
ION EXCHANGE CHROMATOGRAPHY
THORIUM
URANIUM
ORGANIC ION EXCHANGERS
PH VALUE
PHENANTHROLINES
ACTINIDE COMPOUNDS
ACTINIDES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
ELEMENTS
HETEROCYCLIC COMPOUNDS
ION EXCHANGE MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RARE EARTH COMPOUNDS
SEPARATION PROCESSES
THORIUM COMPOUNDS
THORIUM MINERALS
THORIUM PHOSPHATES
400105* - Separation Procedures