Investigation of mixed N,O-donor dipicolinamide derivative ligands for use in nuclear fuel separations Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/mw22v855f

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  • In this work, three isomeric forms of N, N'-diethyl, N, N'-ditolyldipicolinamide (EtTDPA) were synthesized. The elements thorium through americium, which make up a significant portion of the actinides in used nuclear fuel (with the exception of curium), and two fission products, molybdenum and technetium, were tested for their ability to be extracted by EtTDPA into a polar fluorinated diluent from nitric acid solutions at varying concentrations of both nitric acid and organic ligand. These ligands were then further analyzed for their stability when subject to the harsh conditions inflicted during used fuel reprocessing. Degradation products were determined and the effect of their presence on the extraction and separation of the actinide and lanthanide elements was investigated. Finally, thermodynamics of the complexation between EtTDPA and neodymium were investigated by spectroscopic, calorimetric, and solvent extraction methods. The data presented here will hopefully be used in the future ligand design and implementation in solvent extraction systems for the reprocessing of used nuclear fuel.
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  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2013-12-30T16:42:12Z (GMT) No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) LapkaJosephL2013.pdf: 3019893 bytes, checksum: 471f7864efcef18bfd2285eba96607ff (MD5)
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  • description.provenance : Submitted by Joseph Lapka (lapkaj@onid.orst.edu) on 2013-12-28T03:25:29Z No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) LapkaJosephL2013.pdf: 3019893 bytes, checksum: 471f7864efcef18bfd2285eba96607ff (MD5)
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  • description.provenance : Rejected by Julie Kurtz(julie.kurtz@oregonstate.edu), reason: Your ScholarsArchive@OSU submission has been rejected because you attached a CC0 or Public Domain License to your work. These licenses mean that you have "dedicated the work to the public domain by waiving all of your rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. Others can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission." We strongly suggest that you don't attach either of these licenses. We're assuming you probably meant to add a Creative Commons license to your work so that others could use it, but you intended to retain your copyrights. Please re-submit* your work and choose "Creative Commons License" from the License Type drop down box. You'll then be asked two questions about how you want people to use your work. You can also choose "No Creative Commons License". *To re-submit your work, log into ScholarsArchive@OSU. Your rejected submission will be in your Submissions & Tasks work file. You can just resume the submission. All your information will still be in the form; you need to change only the CC License page. If you have any questions or concerns, please contact Sue Kunda: sue.kunda@oregonstate.edu OR 541-737-7262. Thanks, Julie on 2013-12-27T16:30:26Z (GMT)
  • description.provenance : Made available in DSpace on 2013-12-30T22:21:30Z (GMT). No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) LapkaJosephL2013.pdf: 3019893 bytes, checksum: 471f7864efcef18bfd2285eba96607ff (MD5) Previous issue date: 2013-12-04

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