Published March 2018 | Version v1
Journal article Metadata-only

Extraction of uranium and transuranium elements with tert-butylthiacalix[4]arene from carbonate-alkaline solutions

Creators

  • 1. Russian Academy of Sciences, Moscow (Russian Federation). Vernadsky Institute of Geochemistry and Analytical Chemistry
  • 2. Ozersk Institute of Technology, Ozersk (Russian Federation)
  • 3. Khlopin Radium Institute, Saint-Petersburg (Russian Federation)
  • 4. Saint-Petersburg State University, Saint-Petersburg (Russian Federation)

Description

Extraction efficiency of uranium and transuranium elements (Np, Pu, Am and Cm) with tert-butylthiacalix[4]arene TCA from carbonate-alkaline solutions is studied and compared with that of europium (III). Plutonium (III, IV) extraction efficiency with TCA is found to be lower comparing with that of trivalent americium and europium. Extraction efficiency of studied radionuclides decreases as following: Am ≫ Eu ≫ Pu (III), U(VI), Np (V) > Pu (IV) at pH 12. Carbonate concentration increase in aqueous phase suppresses significantly extraction of all studied radionuclides, except americium. This condition can be used for americium individual recovery from complex radioactive carbonate-alkaline solutions. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
315
Journal Issue
3
Journal Page Range
p. 639-642
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
49048479
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AMERICIUM; CARBONATES; EFFICIENCY; EUROPIUM; PH VALUE; PLUTONIUM; RADIOISOTOPES; REDUCTION; SOLVENT EXTRACTION; TRANSURANIUM ELEMENTS; URANIUM
Descriptors DEC
ACTINIDES; CARBON COMPOUNDS; CHEMICAL REACTIONS; ELEMENTS; EXTRACTION; ISOTOPES; METALS; OXYGEN COMPOUNDS; RARE EARTHS; SEPARATION PROCESSES; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS

Optional Information

Notes
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