Desorption behavior of plutonium from anion-exchange resin with HNO sub 3 -HI mixed acid solution

Journal Article · · Separation Science and Technology; (United States)

OSTI ID:5650066

Usuda, Shigekazu; Sakurai, Satoshi; Hirata, Masaru; Umezawa, Hirokazu ^[1]

---

1. Japan Atomic Energy Research Inst., Ibaraki (Japan)

The effect of HI on the desorption behavior of Pu from strongly basic anion-exchange resin in HNO{sub 3} solutions was investigated. The desorption of Pu increased with increasing concentration of HNO{sub 3} in HNO{sub 3}-HI mixed acid solutions. On the other hand, it was difficult to elute Pu with the mixed acid solution containing more than 2.5 M HNO{sub 3} since HI decomposed vigorously in the resin column as the HNO{sub 3} concentration increased. The valence state of Pu in the effluent was a mixture of tri- and tetra-valences. The mixed acid solution, 1 M HNO{sub 3}-0.1 M HI, was found to be adequate as an eluent for effective desorption of PU from the anion-exchange resin in HNO{sub 3} media. Purification procedures for Pu were developed for both micro- and macroamounts.

• OSTI ID: 5650066
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 25:11-12; ISSN SSTED; ISSN 0149-6395
• Country of Publication: United States
• Language: English

Related Subjects

050400* -- Nuclear Fuels-- Feed Processing
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
ACTINIDES
ANIONS
CHARGED PARTICLES
DESORPTION
DISPERSIONS
ELEMENTS
HALOGEN COMPOUNDS
HYDRIODIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IODINE COMPOUNDS
ION EXCHANGE
ION EXCHANGE MATERIALS
IONS
MATERIALS
METALS
MIXTURES
NITRIC ACID
PLUTONIUM
PURIFICATION
QUANTITY RATIO
SEPARATION PROCESSES
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSURANIUM ELEMENTS
VALENCE