Metallization of U3O8 via catalytic electrochemical reduction with Li2O in LiCl molten salt

被引：63

作者：

Hur, JM ^{[1
]}

Seo, CS ^{[1
]}

Hong, SS ^{[1
]}

Kang, DS ^{[1
]}

Park, SW ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Taejon 305600, South Korea

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2003年 / 80卷 / 02期

关键词：

electrochemical reduction; Li2O-LiCl; U3O8;

D O I：

10.1023/B:REAC.0000006128.15961.1d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The concept of a novel electrochemical reduction process for the treatment of spent nuclear fuels in Li2O-LiCl molten salt was proposed and fresh tests using U3O8 powder were carried out to elucidate the reaction mechanism and verify the feasibility of the process. Electrolysis of Li2O and reduction of U3O8 powder took place simultaneously at the cathode part of the electrolysis cell via a catalytic EC mechanism and the conversion of U3O8 to U metal was more than 99%.

引用

页码：217 / 222

页数：6

共 8 条

[1]

Ackerman J. P., 1997, Progress in Nuclear Energy, V31, P141, DOI 10.1016/0149-1970(96)00008-X

[2] 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

[3] Cathodic deoxygenation of the alpha case on titanium and alloys in molten calcium chloride [J].

Chen, GZ ;

Fray, DJ ;

Farthing, TW .

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2001, 32 (06) :1041-1052

[4]

Kubaschewski O., 1979, METALLURGICAL THERMO

[5] Chemical partitioning technologies for an ATW system [J].

Laidler, JJ ;

Burris, L ;

Collins, ED ;

Duguid, J ;

Henry, RN ;

Hill, J ;

Karell, EJ ;

McDeavitt, SM ;

Thompson, M ;

Williamson, MA ;

Willit, JL .

PROGRESS IN NUCLEAR ENERGY, 2001, 38 (1-2) :65-79

[6] DEOXIDATION OF TITANIUM ALUMINIDE BY CA-AL ALLOY UNDER CONTROLLED ALUMINUM ACTIVITY [J].

OKABE, TH ;

OISHI, T ;

ONO, K .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1992, 23 (05) :583-590

[7]

OKABE TH, 1996, J ALLOY COMPD, V237, P841

[8]

USAMI T, 1995, P GLOBAL 95, P1472

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