New solvent extraction processes for minor actinides: CIEMAT contribution to the partnew project: EU contract n. FIKW-CT2000-0087: Second semestral period 2001 March 2001-August 2001

This report includes the work developed at CIEMAT into the part new project: '' New solvent extraction processes for minor actinides' during the first semestral period (September 2000 to February 2001). CIEMAT is lanthanides (LN) extracting properties of new compounds with chemical structure based on two malonamide groups linked to an aromatic platform. The study of new-bearing extractants with chemical structure similar to malonamide aforementioned, changing the 0 atoms by S atoms, and the determination of the selectivity of these new thiomalonamides for AN(III) extraction. (Author)