Kinetics study on the dissolution of UO2 particles by microwave and conventional heating in 4 mol/L nitric acid

• 来源期刊: 中国科学B辑（英文版）
• 年，卷（期）: 2008,（7）
• 页码范围: 700-704
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11426-007-0128-3

摘要

The dissolution of UO2 particles in 4 mol·L-1 nitric acid medium at temperatures of 90--110℃ by mi-crowave heating and conventional heating has been investigated, respectively. It is found that the dissolution ratios of UO2 particles by microwave heating were 10%--40% higher than that by conven-controlled by the diffusion control model for microwave heating and by the surface reaction control model for conventional heating, The diffusion control model for the dissolution of UO2 particles by mi-crowave heating could be explained by the diffuseness on the surface of UO2 particles.