Relationship between dissolution rate of uranium dioxide pellets in nitric acid solutions and their porosity
Article
- 109 Downloads
- 21 Citations
Abstract
Dissolution of uranium dioxide pellets /10 mmø×11 mm/ in nitric acid was studied. A dependence of the initial dissolution rate on acid concentration and temperature was observed. The effective surface area of the pellet was measured during the dissolution process, and compared with its apparent surface area. The experimental dissolution curve was in good agreement with the curve obtained by simulations assuming that the dissolution rate depends on the effective surface area.
Keywords
Porosity Dioxide Inorganic Chemistry Uranium Nitric Acid
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Preview
Unable to display preview. Download preview PDF.
References
- 1.M. Benedict, T. H. Pigford, H. W. Levi, Nuclear Chemical Engineering, 2nd ed., McGraw-Hill, Inc., New York, 1981.Google Scholar
- 2.B. C. Finney, B. A. Hannaford, G. A. West, C. D. Watson, Shear-Leach Process, ORNL-3984, 1969.Google Scholar
- 3.A. L. Urialte, R. H. Rainey, Dissolution of High-Density UO2, PuO2 and UO2−PuO2 pellets in Inorganic Acids, ORNL-3695, 1965.Google Scholar
- 4.S. Araya et al., Concept of Reprocessing Facility, PNC ZN 141, 1984.Google Scholar
- 5.L. M. Ferris, A. H. Kibbey, Sulfex-Thorex and Dares-Thorex Processes for the Dissolution of Consolidated Edison Reactor Fuel, ORNL-2934, 1960.Google Scholar
- 6.J. K. Davidson et al., The Fast Oxide Breeder, KAPL-1757, 1959.Google Scholar
- 7.M. Shabbir, R. G. Robbins,J. Appl. Chem., 18 /1968/ 129.Google Scholar
- 8.R. F. Taylor et al.,J. Appl. Chem., 13, /1963/ 32.Google Scholar
Copyright information
© Akadémiai Kiadó 1986