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ION EXCHANGE IN MIXED SOLVENTS. ADSORPTION BEHAVIOUR OF URANIUM AND THORIUM ON STRONG-BASE ANION-EXCHANGE RESINS FROM MINERAL ACID-ALCOHOL MEDIA SEPARATION METHODS FOR URANIUM AND THORIUM

Journal Article · · Talanta (England)
A summary is presented of importart data hitherto reported on the anion- exchange behavior of uranium(VI) and thorium(IV) in mixed solvents, and the results of pertinent research work carried out in this laboratory. A detatled description is given of the adsorption behavior of these actinide elements on strong-base anion-exchange resins in mineral acid solutions containing aliphatic alcohols. Equilibrium studies show the distribution coefficients to vary greatly with the acid used, as is expected from the results earlier obtained in aqueous systems. In mixtures of a given mineral acid with different alcohols, the distribution coefficients depend on the alcohol percentage, as well as on the acidity of the solutions, and on the dielectric constants and chain lengths of the alcohols employed. The results of these investigations can be applied to the separntion of thorium and uranium from each other and from practically all other cations and anions. Two of the separation methods developed have already found general application for the assay of uranium and thorium in materials of greatly varying composition. Finally, the general theoretical aspects of anion exchange in mixed solverts are discussed, and the results obtained for uranium and thorium are interpreted accordingly. (auth)
Research Organization:
Universitat, Vienna
NSA Number:
NSA-17-008261
OSTI ID:
4724870
Journal Information:
Talanta (England), Journal Name: Talanta (England) Vol. Vol: 9; ISSN TLNTA
Country of Publication:
Country unknown/Code not available
Language:
English