Dissolution of UO2 in the N2O4-H2O system |
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| Authors: | N. V. Ryabkova A. A. Lumpov V. A. Mikhalev A. A. Murzin A. Yu. Shadrin |
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| Affiliation: | 1.Khlopin Radium Institute, Research and Production Association,Federal State Unitary Enterprise,St. Petersburg,Russia |
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| Abstract: | The kinetics of the UO2 dissolution in the N2O4-H2O system was studied. At 25°C, the process is kinetically controlled, whereas at 55°C the process occurs initially under kinetic control (3 min) and then under diffusion-kinetic control. At 80°C, the process occurs exclusively under diffusion-kinetic control. The apparent activation energy was estimated at ∼39 kJ mol−1. |
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