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Separation and purification of Sr from PUREX HLLW using N, N, N′, N′-tetra(2-ethylhexyl) diglycolamide.
- Source :
-
Journal of Radioanalytical & Nuclear Chemistry . Jun2013, Vol. 296 Issue 3, p1341-1347. 7p. 1 Diagram, 7 Charts, 4 Graphs. - Publication Year :
- 2013
-
Abstract
- This paper describes a method for the separation and purification of Sr from PUREX-HLLW employing solvent extraction and precipitation techniques. 30 % TBP in n-dodecane was used for the removal of residual uranium, plutonium and neptunium from HLLW. Trivalent actinides and lanthanides were subsequently removed using N, N, N', N'-tetra(2-ethylhexyl) diglycolamide (TEHDGA, 0.20 M in 30 % isodecyl alcohol and n-dodecane). Sr was selectively extracted from actinides and lanthanides depleted HLLW using 0.3 M TEHDGA in 5 % isodecyl alcohol and dodecane. Loaded strontium was stripped using 0.01 M HNO and further purified by radiochemical precipitation technique after adding Fe and natural strontium as carriers. Based on the experimental results, a flow-sheet was formulated and mCi levels of Sr recovered. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02365731
- Volume :
- 296
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Radioanalytical & Nuclear Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 87583939
- Full Text :
- https://doi.org/10.1007/s10967-012-2302-0