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

页码：7 / 11

页数：5

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