Zobrazeno 1 - 10
of 38
pro vyhledávání: '"G. D. Del Cul"'
Publikováno v:
Separation Science and Technology. 54:1904-1911
The complete recycle of used nuclear fuel (UNF) is desirable to recover the energy value from the remaining U and higher actinides; however, construction of a large-scale facility is extremely expe...
Publikováno v:
Journal of Nuclear Materials. 490:211-215
The oxidation kinetics of U3O8 powder to e-UO3 in an NO2 environment was measured by in situ x-ray diffraction (XRD). Experiments were performed at temperatures of 195, 210, 235, and 250 °C using a custom designed and fabricated sample isolation sta
Autor:
Emory D. Collins, Brad D. Patton, A.G. Croff, R. G. Wymer, G. D. Del Cul, Alan M Krichinsky, Barry B. Spencer
Publikováno v:
Nuclear Technology. 194:252-270
Thorium-based nuclear fuel cycles have received renewed attention in both research and public circles since about the year 2000. Much of the attention has been focused on nuclear fission energy pro...
Autor:
Hyun-Kyu Lee, Tadashi Inoue, Kazuo Minato, J. Uhlíř, Victor Ignatiev, Richard J. Taylor, Emory D. Collins, Jean-Paul Glatz, M. V. Kormilitsyn, G. DeAngelis, Pascal Baron, Yasuji Morita, J.D. Law, A. V. Khaperskaya, S.M. Cornet, I.T. Kim, Yu.V. Fedorov, T. Koyama, G. D. Del Cul, D. Warin
Publikováno v:
Progress in Nuclear Energy. 117:103091
The results of an international review of separation processes for spent nuclear fuel (SNF) recycling in future closed fuel cycles are reported. This study was made by the Expert Group on Fuel Recycling Chemistry (EGFRC) organised by the Nuclear Ener
Autor:
Jack S. Watson, Barry B. Spencer, C. M. Karni, Robert M. Counce, William O. Rains, G. D. Del Cul
Publikováno v:
Separation Science and Technology. 45:1894-1900
The objective for this research was to employ the extended adsorption isotherm (EAI) to develop a predictive relationship between the activity of H2O (aw) and the mean ionic activity (a±) of aqueous HNO3. The EAI model is a calculative approach to t
Publikováno v:
Nuclear Technology. 170:422-429
Recycle of nitric acid in the UREX+ process requires removal of acetic acid. An analysis of the effects of acetic acid in each process step indicates no step will be significantly affected by the c...
Publikováno v:
Nuclear Technology. 165:360-369
This study explores different technologies for removing acetic acid from a UREX+ waste stream. The waste stream contains both nitric and acetic acids, and the acetic acid must be removed from the waste stream to prevent potential problems in the down
Autor:
Jack S. Watson, Jessica A. Mitchell, Robert M. Counce, Barry B. Spencer, G. D. Del Cul, Jared A. Johnson
Publikováno v:
Separation Science and Technology. 43:2548-2556
The modified adsorption isotherm model, incorporating the Stokes-Robinson modification of the Brunauer-Emmett-Teller (BET) adsorption isotherm, is used to calculate the activity of the organic acid and water, and the liquidus curve. This is the first
Autor:
Barry B. Spencer, Jessica A. Mitchell, Jared A. Johnson, G. D. Del Cul, Jack S. Watson, Robert M. Counce
Publikováno v:
Separation Science and Technology. 43:2537-2547
In the UREX + process, acetic acid must be removed from the raffinate stream to avoid interference with the recovery and recycle of nitric acid solutions. Solvent extraction was selected to be the most promising approach to accomplish this cleanup. A
Publikováno v:
Radiochimica Acta. 90:109-122
Summary The safe handling and storage of radioactive materials require an understanding of the effects of radiolysis on those materials. Radiolysis may result in the production of gases (e.g., corrosives) or pressures that are deleterious to storage