Small-Angle Neutron Scattering Study of Plutonium Third Phase Formation in 30% TBP/HNO3/Alkane Diluent Systems

Third phase formation in the extraction of Pu(IV) nitrate by 30% tri-n-butyl phosphate (TBP) dissolved in n-dodecane or in the highly branched diluent hydrogenated polypropylene tetramer (HPT), which may also be known as 4,4 dipropyl Received 22 June 2005, Accepted 31 October 2005 The views expressed are solely those of the authors and no official support or endorsement of this publication by the Defense Nuclear Facilities Safety Board or the federal government is intended or should be inferred. Work performed at Argonne National Laboratory was supported by Duke Cogema Stone & Webster under interagency agreement, through U.S. Department of Energy contract W-31-109-Eng-38. Address correspondence to J. Plaue, Defense Nuclear Facilities Safety Board , 625 Indiana Ave, Washington, DC 20004-290, USA. E-mail: [email protected] Solvent Extraction and Ion Exchange, 24: 283–298, 2006 Copyright # Taylor & Francis Group, LLC ISSN 0736-6299 print/1532-2262 online DOI: 10.1080/07366290600646970