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Separation of americium from europium using 3,3′-dimethoxy-phenyl-bis-1,2,4-triazinyl-2,6-pyridine

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Pages 1848-1855 | Received 02 Dec 2016, Accepted 06 Mar 2017, Published online: 11 May 2017
 

ABSTRACT

The development of liquid–liquid separation processes for the effective removal of minor actinide Am(III) from used nuclear fuel (UNF) using ligand-based strategies continues to be an area of significant research focus. The current investigation demonstrates the efficacy of a nitrogen-based bis-triazinyl pyridine (BTP) derivative to selectively extract Am(III) from nitric acid solutions containing light lanthanides. The performance of 3,3ʹ-dimethoxy-phenyl-bis-1,2,4-triazinyl-2,6-pyridine (MOB-BTP) was compared to that of a camphor-substituted BTP (CA-BTP). The results of this investigation demonstrate the novel 3,3ʹ-methoxy-BTP extractant dissolved in a polar diluent was a more efficient extractant for Am(III) at a lower concentration than CA-BTP under comparable conditions.

Funding

Financial support for this project was provided by the Fuel Cycle Research and Development program, Office of Nuclear Energy, U.S. Department of Energy and the TTU Department of Chemistry. Support from NSF-RUI 9970016 is acknowledged for the acquisition of the TTU Chemistry Department’s NMR spectrometer.

Additional information

Funding

Financial support for this project was provided by the Fuel Cycle Research and Development program, Office of Nuclear Energy, U.S. Department of Energy and the TTU Department of Chemistry. Support from NSF-RUI 9970016 is acknowledged for the acquisition of the TTU Chemistry Department’s NMR spectrometer.

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