2,2’-bipyridine as a masking agent of ruthenium in the PUREX process

The extraction of ruthenium by tri-n-butyl phosphate (TBP) is an issue for the PUREX process. The addition of 50 mM of 2,2ʹ-bipyridine (BIPY) reveals that ruthenium can be maintained in 3 M HNO3 aq...