Batch flowsheet test for a GANEX-type process: the CHALMEX FS-13 process

The Chalmers grouped actinide extraction (CHALMEX) process is focused on the co-separation of actinides from all other elements in spent nuclear fuel solution, with ultimate purpose transmuting into shorter-lived and less radiotoxic elements. Based solvent equilibrium distribution data fission products, a preliminary flowsheet was developed tested batch mode. consists one step CHALMEX FS-13 (25 mM CyMe4-BTBP 30% v/v TBP 70% FS-13), using hydrophilic masking agents (20 bimet 0.2 M mannitol) aqueous phase for complexation troublesome products. Two nitric acid scrub steps (0.5 HNO3) were efficient removing co-extracted acid, molybdenum majority silver. stripping stages glycolic at pH 4) recovery organic phase. need clean-up stage removal nickel, cadmium, iron remaining silver demonstrated. data, it calculated that 99.9% americium possible only 3 ideal stages, scrubbing 2 stages.