THE SEPARATION OF NEPTUNIUM AND TECHNETIUM IN AN ADVANCED PUREX PROCESS

Authors
UCHIYAMA G ASAKURA T HOTOKU S FUJINE S
Citation
G. Uchiyama et al., THE SEPARATION OF NEPTUNIUM AND TECHNETIUM IN AN ADVANCED PUREX PROCESS, Solvent extraction and ion exchange, 16(5), 1998, pp. 1191-1213
Citations number
12
Categorie Soggetti
Chemistry
Journal title
Solvent extraction and ion exchange → ACNP
ISSN journal
07366299
Volume
16
Issue
5
Year of publication
1998
Pages
1191 - 1213
Database
ISI
SICI code
0736-6299(1998)16:5<1191:TSONAT>2.0.ZU;2-L
Abstract
An advanced PUREX process has been developed which can reduce TRU wast e volume and the environmental hazard risk due to long-lived nuclides. The separation of neptunium and technetium from plutonium and uranium solutions has been studied before the U/Pu partitioning step in the P UREX process. The effectiveness of normal-butyraldehyde as a reductant of Np(VI) to Np(V) and of high acid scrubbing of technetium was shown in a basic study and a chemical flowsheet study.