JRP CALL information
Supported By

European Commission

Short description of the work
Radiation stability of extractants (CyMe4-BTBP and CyMe4-BTPhen) and the influence of solvent irradiation on its extraction properties are an important factors for use in a processes, such as European SANEX and/or Ganex proces.
The solutions of CyMe4-BTBP or CyMe4-BTPhen ligands were dissolved in various alkylated cyclohexanone derivatives or FS-13 (phenyl trifluoromethyl sulfone) and were irradiated by gamma source with the dose from 20 kGy to 1000 kGy to study the radiation stability of CyMe4-BTBP and CyMe4-BTPhen in various diluents. The selected cyclohexanone-based diluents were cyclohexanone, 3 methylcyclohexanone and 2,6-dimethylcyclohexanone. Some of the samples were irradiated also in the presence of the nitric acid solutions.
The irradiated samples were transported to CTU in Prague and the extraction properties of the irradiated solvents were compared with the extraction properties of non-irradiated solvents to estimate the influence of the degradation products in the organic phase.
The irradiated samples are still analysed for the degree of extractant degradation.

Main visitor contact data
Name: Jana Konde
Organisation: CTU in Prague

JRP Identification
JRP nr: TALI-C06-09
JRP title: Gamma-ray radiolysis of CyMe4-BTBP and CyMe4-BTPhen in their Solutions in Cyclohexanone-based Diluents or FS-13
JRP scope: Scope 1: Actinide separation chemistry

Visited Associated Pooled Facility
Visited APF during the stay: Chalmers - Hot Lab
Name of the APF Contact Person: Stefan Allard

Other APF and organisation involved in the JRP
Other organisations involved: Institute of Inorganic Chemistry in Řež (Bohumir Gruner)
Other APF involved in the project:

Description of the work done at the associated pooled facility
Start date of the stay: 9/9/2015
End date of the stay: 9/30/2015
Quantity of access: 15
Access Unit: Days