A TBP/BTBP-based GANEX Separation Process. Part 1: Feasibility

Emma Aneheim; Christian Ekberg; Anna Fermvik; Mark Foreman; Teodora Retegan Vollmer; Gunnar Skarnemark

doi:10.1080/07366299.2010.480930

A TBP/BTBP-based GANEX Separation Process. Part 1: Feasibility
Artikel i vetenskaplig tidskrift, 2010

A GANEX (Group ActiNide EXtraction) separation system for transmutation has been developed. In this separation process the actinides should be extracted as a group from the lanthanides and the fission and corrosion/activation products. This can be achieved by combining BTBP (bis-triazine-bipyridine) with TBP (tri-butyl phosphate) in cyclohexanone. From 4M nitric acid this organic system extracts the actinides (log(DAm) = 2.19, log(DPu) = 2.31, log(DU) = 1.03, log(DNp) = 0.53) and also separates them from the lanthanides (log(DLa) = -2.0, log(DCe) = -1.72, log(DNd) = -1.05, log(DSm) = -0.18, log(DEu) = -0.02). One problem encountered is that some of the fission and corrosion products are also extracted. The new system however still looks feasible.

quadridentate

minor actinides

actinides

lanthanides

separation

transmutation

btbp

GANEX

diamex process

TBP

behavior

lanthanides

americium(iii)

BTBP

Liquid-liquid extraction

normal-butyl phosphate

extraction