An electrochemical reduction of uranium oxide in the advanced spent-fuel conditioning process

被引：34

作者：

Jeong, Sang Mun ^{[1
]}

Hur, Jin-Mok ^{[1
]}

Hong, Sun Seok ^{[1
]}

Kang, Dae Seung ^{[1
]}

Choung, Myoung Soo ^{[1
]}

Seo, Chung-Seok ^{[1
]}

Yoon, Ji-Sup ^{[1
]}

Park, Seong-Won ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Nucl Fuel Cycle Grp, Taejon 305353, South Korea

来源：

NUCLEAR TECHNOLOGY | 2008年 / 162卷 / 02期

关键词：

electrochemical reduction; integrated cathode assembly; LiCl-Li2O molten salt;

D O I：

10.13182/NT162-184

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The Korea Atomic Energy Research Institute is currently developing the Advanced Spent-Fuel Conditioning Process (ACP) based on a pyrochemical process. An electrochemical reduction process has been developed as a key unit of the ACE In this work, an electrochemical reduction of U3O8 powder in a LiCl-Li2O molten salt has been investigated in an electrochemical cell with a unique cathode assembly, which consists of a porous magnesia membrane, oxide powder, and a solid electricity conductor. The experimental results suggest successful demonstration of this process, exhibiting a reduction conversion Of U3O8 of >99% for a batch.

引用

页码：184 / 191

页数：8

共 18 条

[1] Direct electrochemical reduction of titanium dioxide to titanium in molten calcium chloride [J].

Chen, GZ ;

Fray, DJ ;

Farthing, TW .

NATURE, 2000, 407 (6802) :361-364

[2] Toward optimisation of electrolytic reduction of solid chromium oxide to chromium powder in molten chloride salts [J].

Gordo, E ;

Chen, GZ ;

Fray, DJ .

ELECTROCHIMICA ACTA, 2004, 49 (13) :2195-2208

[3]

HERRMANN SD, 2005, P INT M GLOBAL 2005, P386

[4] Metallization of U3O8 via catalytic electrochemical reduction with Li2O in LiCl molten salt [J].

Hur, JM ;

Seo, CS ;

Hong, SS ;

Kang, DS ;

Park, SW .

REACTION KINETICS AND CATALYSIS LETTERS, 2003, 80 (02) :217-222

[5]

Jeong SM, 2006, J RADIOANAL NUCL CH, V268, P349, DOI 10.1556/JRNC.268.2006.2.24

[6] Characteristics of an electrochemical reduction of Ta2O5 for the preparation of metallic tantalum in a LiCl-Li2O molten salt [J].

Jeong, Sang Mun ;

Jung, Jin-Young ;

Seo, Chung-Seok ;

Park, Seong-Won .

JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 440 (1-2) :210-215

[7] Perovskitization-assisted electrochemical reduction of solid TiO2 in molten CaCl2 [J].

Jiang, K ;

Hu, XH ;

Ma, M ;

Wang, DH ;

Qiu, GH ;

Jin, XB ;

Chen, GZ .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (03) :428-432

[8]

LI SX, 2003, P INT M GLOBAL 2003, P986

[9]

Oh S.C., 2003, J KOREAN RADIOACT WA, V1, P25

[10] Pyroprocessing of light water reactor spent fuels based on an electrochemical reduction technology [J].

Ohta, H ;

Inoue, T ;

Sakamura, Y ;

Kinoshita, K .

NUCLEAR TECHNOLOGY, 2005, 150 (02) :153-161

← 1 2 →