Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Nicholas C. Schmitt"'
Autor:
Bruce J. Mincher, Philippe Guilbaud, Marie-Christine Charbonnel, Joakim Ceder, Laurence Berthon, Christopher A. Zarzana, Nicholas C. Schmitt, Richard D. Ball, Richard D. Tillotson, Gregory P. Horne, Stephen P. Mezyk, Cathy Rae, George Saint-Louis
Publikováno v:
Radiation Physics and Chemistry
Radiation Physics and Chemistry, 2020, 170, pp.108608. ⟨10.1016/j.radphyschem.2019.108608⟩
Radiation Physics and Chemistry, Elsevier, 2020, 170, pp.108608. ⟨10.1016/j.radphyschem.2019.108608⟩
Radiation Physics and Chemistry, 2020, 170, pp.108608. ⟨10.1016/j.radphyschem.2019.108608⟩
Radiation Physics and Chemistry, Elsevier, 2020, 170, pp.108608. ⟨10.1016/j.radphyschem.2019.108608⟩
Di-2-ethylhexylbutyramide (DEHBA) has been proposed as part of a hydro-reprocessing solvent extraction system for the co-extraction of uranium and plutonium from spent nuclear fuel. However, there remains a lack of quantitative understanding of the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::702cf5465aa30c85eb15d136ff13f0ce
https://hal.science/hal-02558021
https://hal.science/hal-02558021
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 318:35-41
A series of tests were performed using centrifugal contactors to evaluate the separation of Am(VI) from cerium, as well as to determine the efficiency of the contactors. All experiments were performed using 2-cm, acrylic 3D-printed centrifugal contac
Autor:
Richard D. Tillotson, Troy G. Garn, Jack D. Law, Veronica Rutledge, Nicholas C. Schmitt, Bruce J. Mincher
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 307:1833-1836
An engineering-scale centrifugal contactor test bed was built at Idaho National Laboratory to perform solvent extraction testing for the partitioning of hexavalent americium. The raffinate simulant feed was spiked with 243Am and 139Ce and treated wit
Publikováno v:
RSC Advances. 5:27205-27210
The peroxydisulfate anion has long been used for the preparation of hexavalent americium (AmVI) from the normally stable AmIII valence state in mildly acidic solutions. However, there has been no satisfactory means to directly prepare the pentavalent
Autor:
Bruce J. Mincher, Stephen P. Mezyk, Gracy Elias, Gary S. Groenewold, Jay A. LaVerne, Mikael Nilsson, Jeremy Pearson, Nicholas C. Schmitt, Richard D. Tillotson, Lonnie G. Olson
Publikováno v:
Solvent Extraction and Ion Exchange. 32:167-178
Octylphenyl-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) was irradiated using 60Co γ-rays, and post-irradiation samples were analyzed for the decrease in CMPO concentration, the appearance of degradation products, and the effects on americium
Autor:
Byron M. White, Jack D. Law, Gracy Elias, Nicholas C. Schmitt, Bruce J. Mincher, Richard D. Tillotson
Publikováno v:
Solvent Extraction and Ion Exchange. 32:153-166
Successful deployment of the currently-envisioned advanced nuclear fuel cycle requires the development of a partitioning scheme to separate Am from the lanthanides. The Am/lanthanide separation is challenging since all the metals are normally trivale
Publikováno v:
Solvent Extraction and Ion Exchange. 29:247-259
The inextractability of the actinide AnO2 + ions by the TRUEX solvent suggests the possibility of a separation of americium from the lanthanides using oxidation to Am(V). The only current method for the direct oxidation of americium to Am(V) in stron
Publikováno v:
Sensing and Imaging: An International Journal. 11:61-75
High performance liquid chromatography and gas chromatography techniques are well documented and widely used for the detection of trace explosives from organic solvents. These techniques were modified to identify and quantify explosives extracted fro
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 282:523-526
Recently the use of the more unusual hexavalent oxidation state of americium has been receiving increased attention for the purpose of developing an efficient Am/Cm or Am/lanthanide separation system. We have already demonstrated the feasibility of p