Influence of dose rate on the radiolytic stability of a BTPB solvent for actinide(III)/lanthanide(III) separation
Artikel i vetenskaplig tidskrift, 2009

The recently developed ligand MF2-BTBP dissolved in cyclohexanone is a promising solvent for the group separation of trivalent actinides(III) from the lantha-nides(III). Its high stability against nitric acid has been demonstrated recently. Since the solvent is also exposed to a continuously high radiation level in the counter current process, the radiolytic stability of the solvent was examined in this study. Irradiation experiments were carried out up to an absorbed dose of 100 kGy and the effect of the dose rate was investigated. The extraction behaviour for An(III)/Ln(III) separation was studied after radiolysis for evaluation. It was found that during high dose rate irradia-tion the extraction efficiency for both Am(III) and Eu(III) decreased significantly with increasing absorbed dose, whereas during the low dose rate irradiation the extraction efficiencies remained more or less at the same level.

Författare

Anna Fermvik

Chalmers, Kemi- och bioteknik, Kärnkemi

Christian Ekberg

Chalmers, Kemi- och bioteknik, Kärnkemi

Sofie Englund

Mark Foreman

Chalmers, Kemi- och bioteknik, Kärnkemi

G. Modolo

Forschungszentrum Jülich

Teodora Retegan

Chalmers, Kemi- och bioteknik, Kärnkemi

Gunnar Skarnemark

Chalmers, Kemi- och bioteknik, Kärnkemi

Radiochimica Acta

0033-8230 (ISSN)

Vol. 97 6 1-6

Ämneskategorier

Kemi

DOI

10.1524/ract.2009.1615