Artikel
Lizenziert
Nicht lizenziert
Erfordert eine Authentifizierung
Comparative studies on the dissolution of ceramic UO2 pellets in nitric acid by microwave and conventional heating
-
Yunfeng Zhao
Veröffentlicht/Copyright:
25. September 2009
Summary
The dissolution data of UO2 are important to develop the new process of uranium ore leaching and new head-end reprocessing of spent nuclear fuel. The dissolution experiments of UO2 pellets in 8 M nitric acid by microwave heating and conventional heating were carried out respectively in the present work. Compared with the conventional heating, the microwave heating can remarkably promote the dissolution process of UO2 pellets with a dissolution ratio increase of 26%–46%. The kinetics results show that the dissolution processes by microwave heating and conventional heating match well with the diffusion control model and the surface reaction control model, respectively.
Received: 2007-9-20
Revised: 2008-1-4
Published Online: 2009-9-25
Published in Print: 2008-8-1
© Oldenbourg Wissenschaftsverlag
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Artikel in diesem Heft
- Precise isotope ratio measurements by MC-ICP-MS and application of the isotope dilution technique for the determination of germanium in the Gallium Neutrino Observatory
- Search for the “missing” α-decay branch in 239Cm
- Cross sections of proton induced nuclear reactions on natural cadmium leading to the formation of radionuclides of indium
- Comparative studies on the dissolution of ceramic UO2 pellets in nitric acid by microwave and conventional heating
- Selenide retention onto pyrite under reducing conditions
- Kinetics and thermodynamics of adsorption of trace amount of uranium on activated carbon
- Characterization of Lin'an montmorillonite and its application in the removal of Ni2+ from aqueous solutions
- Effect of ozone on ruthenium species in alkaline medium – Part III: Oxidative dissolution of ruthenium deposits onto stainless steel
- Computer-aided design of new metal binders
Schlagwörter für diesen Artikel
Microwave heating;
Uranium oxide;
Dissolution;
Nitric acid;
Reprocessing
Artikel in diesem Heft
- Precise isotope ratio measurements by MC-ICP-MS and application of the isotope dilution technique for the determination of germanium in the Gallium Neutrino Observatory
- Search for the “missing” α-decay branch in 239Cm
- Cross sections of proton induced nuclear reactions on natural cadmium leading to the formation of radionuclides of indium
- Comparative studies on the dissolution of ceramic UO2 pellets in nitric acid by microwave and conventional heating
- Selenide retention onto pyrite under reducing conditions
- Kinetics and thermodynamics of adsorption of trace amount of uranium on activated carbon
- Characterization of Lin'an montmorillonite and its application in the removal of Ni2+ from aqueous solutions
- Effect of ozone on ruthenium species in alkaline medium – Part III: Oxidative dissolution of ruthenium deposits onto stainless steel
- Computer-aided design of new metal binders
