Reduction of U3O8 to U by a metallic reductant, Li

被引：2
|
作者：
Hur, Jin-Mok [1 ]
Hong, Sun-Seok [1 ]
Lee, Hansoo [1 ]
机构：
[1] Korea Atom Energy Res Inst, Taejon 305353, South Korea
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2010年 / 284卷 / 01期
关键词：
Uranium oxides; Lithium reduction; Electrochemical reduction; Pyroprocessing; Oxidation; ELECTROCHEMICAL REDUCTION; MOLTEN-SALT; URANIUM; SEPARATION; DIOXIDE; REACTOR;
D O I：
10.1007/s10967-009-0335-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Reduction of U3O8 was investigated for the recycling of spent oxide fuel from a commercial nuclear power plant. The possible reduction methods were proposed and compared. Based on the thermodynamic analysis, Li metal was selected as a reductant. The optimum reaction temperature for the reduction of U3O8 was investigated at the wider reaction temperature range. The adverse oxidation of U metal by Li2O at 1,000 A degrees C was experimentally verified. Ellingham diagram was constructed to investigate the extent of the uranium oxides reduction when the reaction was carried out above melting point of U metal.
引用
收藏
页码：7 / 11
页数：5
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