Demonstration of a TODGA Based Extraction Process for the Partitioning of Actinides from a PUREX Raffinate - Part III: Centrifugal Contractor Run Using Genuine Fuel Solution

Efficient recovery of minor actinides (MA) from genuine PUREX raffinate has been successfully demonstrated by the TODGA + TBP extractant mixture dissolved in an industrial aliphatic solvent TPH. The process was carried out in centrifugal contactors using an optimized flow-sheet involving a total of 32 stages, divided into 4 stages for extraction, 12 stages for scrubbing and 16 stages for back-extraction. Very high feed decontamination factors were obtained (Am, Cm ~ 40 000) and the recovery of these elements was higher than 99.99%. Of the non-lanthanide fission products only Y and a small part of Ru were co-separated into the product fraction together with the lanthanides and the MA.

MAGNUSSON D.;  CHRISTIANSEN Birgit;  GLATZ Jean-Paul;  MALMBECK Rikard;  MODOLO G.;  SERRANO PURROY Daniel;  SOREL C.; 

2009-02-12

TAYLOR & FRANCIS INC

JRC50410

0736-6299,   

http://www.informaworld.com/smpp/content?content=a907418497,    https://publications.jrc.ec.europa.eu/repository/handle/JRC50410,   

10.1080/07366290802544726,