NUCL 75 |
| Currently the most challenging problem in the spent nuclear fuel reprocessing technology is the separation of the minor actinides from the lanthanides. Different types of extractants containing soft donor groups were proposed for this purpose, and several N-donor ligands based on pyridine ring systems have been studied for Am(III) extraction. The solutions of diamides of dipicolinic acid (diamide of 2,6-pyridinecarboxylic acid) in polar fluorinated diluents are promising extractants for separation of lanthanide and actinide elements from aqueous nitric acid solutions. The effect of different alkyl and aryl substituents at the amide group of several diamides of dipicolinic acid ligands on complexation of lanthanides and actinides was investigated. The electrospray ionization mass spectrometry (ESI-MS) method has been used to investigate the stoichiometry of studied complexes. Effect of nitrate, perchlorate and dicarbollide anions will be discussed. |
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Sci-Mix
8:00 PM-10:00 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Sci-Mix
Division of Nuclear Chemistry & Technology |