onr:"swepub:oai:research.chalmers.se:2274f055-76fb-461f-bc40-c30d1b858837"
Search: onr:"swepub:oai:research.chalmers.se:2274f055-76fb-461f-bc40-c30d1b858837" > Technetium chemistr...
- 1 of 1
- Previous record
- Next record
- To hitlist
Technetium chemistry in a novel group actinide extraction process
-
- Aneheim, Emma, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Ekberg, Christian, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Littley, A. (author)
- Chalmers tekniska högskola,Chalmers University of Technology
- show more...
- show less...
- (creator_code:org_t)
- 2012-07-18
- 2013
- English.
- In: Journal of Radioanalytical and Nuclear Chemistry. - : Springer Science and Business Media LLC. - 0236-5731 .- 1588-2780. ; 296:2, s. 743-748
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- A newly developed method for advanced reprocessing of used nuclear fuel is the Group ActiNide EXtraction (GANEX) process. It is a liquid-liquid extraction process that aims at extracting all the actinides as a group from dissolved used nuclear fuel. This extraction can either be performed after a removal of the bulk uranium or directly on the dissolution liquor. At Chalmers University of Technology in Sweden a solvent that utilizes tributyl-phosphate (TBP) and a molecule from the bis-triazine bipyridine (BTBP) class of ligands dissolved in cyclohexanone has been developed for the use in a GANEX process. Previously the system has not been tested with the presence of technetium that is one of the major fission products. Technetium is often considered a problem within reprocessing since it has a chemical behaviour that differs from most other elements in the spent fuel. Therefore, a special emphasis was put on the investigation of technetium in the selected GANEX system. It was shown that technetium is readily extracted by the GANEX solvent and that cyclohexanone is the main extractant when no other metals were present in the system. It was also found that the presence of uranium decreased the overall technetium extraction despite a slight co-extraction with TBP, while irradiation of the GANEX solvent to large doses ([>1 MGy) increased its technetium extraction capability. It was also discovered that an increased nitrate concentration in the aqueous phase and an addition of other fission products both inhibited the technetium extraction even though fission product loading most likely changed the extraction mechanism to co-extraction by BTBP.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Keyword
- Cyclohexanone
- GANEX
- BTBP
- Technetium
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
- Journal of Radioanalytical and Nuclear Chemistry (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Aneheim, Emma, 1 ...
- Ekberg, Christia ...
- Littley, A.
- Löfström Engdahl ...
- Skarnemark, Gunn ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Chemical Science ...
- and Inorganic Chemis ...
- Articles in the publication
- Journal of Radio ...
- By the university
- Chalmers University of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
