Published 1979 | Version v1
Miscellaneous Restricted

Formation of aqueous complexes of metal ions formed during the reprocessing of nuclear fuels with ortho-phenanthroline and dibutylphosphate

Creators

  • 1. CEA Centre d'Etudes Nucleaires de Fontenay-aux-Roses, 92 (France). Div. de Chimie

Description

In this work the formation of aqueous complexes of metalions (lanthanides, actinides) was investigated that occurs during reprocessing of nuclear combustibles with ortho-phenanthroline and dibutylphosphate. Complexes with different ligand numbers and solubility are formed. Cationic and anionic forms according to the DBP concentration in the extraction solution. Acid-base titrations, absorption spectra and solubility determinations were used for the characterization. (RB)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

In dieser Arbeit wurde die Bildung von Aquokomplexen von Metallionen (Lanthaniden, Aktiniden) aus der Wiederaufarbeitung von Brennelementen mit Ortho-Phenanthrolin und Dibutylphosphat untersucht. Komplexe mit unterschiedlicher Ligandenzahl und Loeslichkeit werden gebildet, kationische und amionische Formen je nach Konzentration am DBP in der Extraktionsloesung. Saeure-Base-Titrationen, Absorptionsspektren und Loeslichkeitsbestimmungen wurden zur Charakterisierung herangezogen. (RB)

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Additional details

Additional titles

Original title (French)
Complexes aqueux d'ions metalliques presents dans le retraitement des combustibles nucleaires, avec les ligands orthophenantroline et dibutylphosphate

Publishing Information

Imprint Pagination
15 p.
Report number
INKA-Conf--79-003-042

Conference

Title
International symposium on thermodynamics of nuclear materials.
Dates
29 Jan - 2 Feb 1979.
Place
Juelich, Germany, F.R.

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
10493855
Subject category
S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORPTION SPECTRA; AMERICIUM COMPLEXES; AQUEOUS SOLUTIONS; CHEMICAL REACTION KINETICS; COORDINATION NUMBER; DBP; NEPTUNIUM COMPLEXES; PHENANTHROLINE-ORTHO; RARE EARTH COMPLEXES; REPROCESSING; SOLUBILITY; SOLVENT EXTRACTION; TITRATION; URANYL COMPLEXES; VALENCE
Descriptors DEC
ACTINIDE COMPLEXES; BUTYL PHOSPHATES; COMPLEXES; DISPERSIONS; ESTERS; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; KINETICS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; PHENANTHROLINES; PHOSPHORIC ACID ESTERS; REACTION KINETICS; REAGENTS; SEPARATION PROCESSES; SOLUTIONS; SPECTRA; TRANSURANIUM COMPLEXES; URANIUM COMPLEXES

Optional Information

Secondary number(s)
IAEA-SM--236/78.