<abstract xmlns="http://www.w3.org/1999/xhtml"> Several solvents for Grouped ActiNide EXtraction (GANEX) processes have been investigated at Chalmers University of Technology in recent years. Four different GANEX solvents; cyclo-GANEX (CyMe4- -BTBP, 30 vol.% tri-butyl phosphate (TBP) and cyclohexanone), DEHBA-GANEX (CyMe4-BTBP, 20 vol.% N,N-di-2(ethylhexyl) butyramide (DEHBA) and cyclohexanone), hexanol-GANEX (CyMe4-BTBP, 30 vol.% TBP and hexanol) and FS-13-GANEX (CyMe4-BTBP, 30 vol.% TBP and phenyl trifluoromethyl sulfone (FS-13)) have been studied and the results are discussed and compared in this work. The cyclohexanone based solvents show fast and high extraction of the actinides but a somewhat poor diluent stability in contact with the acidic aqueous phase. FS-13-GANEX display high separation factors between the actinides and lanthanides and a good radiolytic and hydrolytic stability. However, the distribution ratios of the actinides are lower, compared to the cyclohexanone based solvents. The hexanol-GANEX is a cheap solvent system using a rather stable diluent but the actinide extraction is, however, comparatively low.</abstract>

Several solvents for Grouped ActiNide EXtraction (GANEX) processes have been investigated at Chalmers University of Technology in recent years. Four different GANEX solvents; cyclo-GANEX (CyMe4- -BTBP, 30 vol.% tri-butyl phosphate (TBP) and cyclohexanone), DEHBA-GANEX (CyMe4-BTBP, 20 vol.% N,N-di-2(ethylhexyl) butyramide (DEHBA) and cyclohexanone), hexanol-GANEX (CyMe4-BTBP, 30 vol.% TBP and hexanol) and FS-13-GANEX (CyMe4-BTBP, 30 vol.% TBP and phenyl trifluoromethyl sulfone (FS-13)) have been studied and the results are discussed and compared in this work. The cyclohexanone based solvents show fast and high extraction of the actinides but a somewhat poor diluent stability in contact with the acidic aqueous phase. FS-13-GANEX display high separation factors between the actinides and lanthanides and a good radiolytic and hydrolytic stability. However, the distribution ratios of the actinides are lower, compared to the cyclohexanone based solvents. The hexanol-GANEX is a cheap solvent system using a rather stable diluent but the actinide extraction is, however, comparatively low.

Development of the Chalmers Grouped Actinide Extraction Process

Nuclear Chemistry & Industrial Materials Recycling, Department of Chemical and Biochemical Engineering, Chalmers University of Technology, Kemigården 4, 41296 Gothenburg, Sweden, Tel.: +46(0)31 772 2920

Nukleonika

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{"article-title":"Development of the Chalmers Grouped Actinide Extraction Process"}

Several solvents for Grouped ActiNide EXtraction (GANEX) processes have been investigated at Chalmers University of Technology in recent years. Four different...

Development of the Chalmers Grouped Actinide Extraction Process

Publié en ligne: 30 déc. 2015

Pages: 829 - 835

Reçu: 25 juin 2015

Accepté: 21 août 2015

DOI: https://doi.org/10.1515/nuka-2015-0115

Mots clés
BTBP-ligands, DEHBA, GANEX, organic diluents, TBP, solvent extraction

© by Jenny Halleröd

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Development of the Chalmers Grouped Actinide Extraction Process

Publié en ligne: 30 déc. 2015

Pages: 829 - 835

Reçu: 25 juin 2015

Accepté: 21 août 2015

DOI: https://doi.org/10.1515/nuka-2015-0115

Mots clésBTBP-ligands, DEHBA, GANEX, organic diluents, TBP, solvent extraction

© by Jenny Halleröd

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
BTBP-ligands, DEHBA, GANEX, organic diluents, TBP, solvent extraction