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2015 | 60 | 4 | 829-835

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Development of the Chalmers Grouped Actinide Extraction Process


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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.










Physical description


1 - 12 - 2015
21 - 8 - 2015
25 - 6 - 2015
30 - 12 - 2015


  • 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
  • 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
  • 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
  • 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


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