Sorption of REE and TPE on sulfonated strong-acid cation exchanger KU-2 from multicomponent HNO{sub 3} solutions

Journal Article · Mon May 01 00:00:00 EDT 1995 · Radiochemistry

OSTI ID:136030

Chuveleva, E A; Kharitonov, O V; Firsova, L A

Sorption of rare earths (REE) from multicomponent systems is studied as a function of solution acidity (0.1-2.0 M) and temperature (20-70{degrees}C). The elution curves for REE and transplutonium-element (TPE) sorption pass through a maximum, the value of which increases with decreasing solution acidity. The selectivity order changes for Y. This phenomenon is explained. The separation coefficients Nd-M are determined for various [HNO{sub 3}]. In the range [H{sup +}] = 0.5-2.01 M, the separation coefficients become <1. The optimal conditions for REE and TPE sorption are determined.

• OSTI ID: 136030
• Journal Information: Radiochemistry, Vol. 36, Issue 5; Other Information: PBD: May 1995; TN: Translated from Radiokhimiya; 36: No. 5, 417-421(Sep-Oct 1994)
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
40 CHEMISTRY
RARE EARTHS
SORPTION
TRANSPLUTONIUM ELEMENTS
ION EXCHANGE MATERIALS
SORPTIVE PROPERTIES
PH VALUE
REPROCESSING