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논문 기본 정보

자료유형
학술저널
저자정보
Hou Chenxi (Harbin Engineering University) He Mingjian (Harbin Engineering University) Fang Haofan (Harbin Engineering University) Zhang Meng (Harbin Engineering University) Gao Yang (Harbin Engineering University) Jiao Caishan (Harbin Engineering University) He Hui (Department of Radiochemistry China Institute of Atomic Energy)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제55권 제1호
발행연도
2023.1
수록면
63 - 70 (8page)
DOI
10.1016/j.net.2022.09.025

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초록· 키워드

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Ultrasound-assisted dissolution of U3O8 powder in carbonate solution was explored to determine if and how ultrasound act during the dissolution. The variation of U3O8 solid particles and uranyl complexes under ultrasound treatment and magnetic stirring was observed in carbonate media. The results show that the use of ultrasound can increase the solubility and dissolution rate of U3O8 powder than that under magnetic stirring. The crush of U3O8 particles and the reduction of the activation energy (Ea, kJ/ mol) of U3O8 dissolution reaction were observed, which both play an important role in the ultrasonicassisted dissolution of U3O8 in carbonate-peroxide solution. Meanwhile, there is no observation of the ultrasound effect on the distribution of uranyl species and hydrolysis of uranyl complexes during the ultrasound treatment in carbonate-peroxide solution. Although the generation of $OH radicals under ultrasound (22 ± 2 kHz) was observed, the oxidation of $OH had little effect on the dissolution of U3O8 in the carbonate-peroxide solution system.

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