Neptunium concentration profiles in the Purex process

被引：9

作者：

Takanashi, M ^{[1
]}

Homma, S ^{[1
]}

Koga, J ^{[1
]}

Matsumoto, S ^{[1
]}

机构：

[1] Saitama Univ, Dept Appl Chem, Urawa, Saitama 338, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 271卷

关键词：

co-decontamination step; neptunium recovery; Pu(VI); nitrous acid; neptunium reduction; n-butyraldehyde;

D O I：

10.1016/S0925-8388(98)00188-1

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：

Numerical simulations of neptunium concentration profiles in the co-decontamination step of the Purer process is carried out in order to understand neptunium extraction behavior and to propose a flow sheet for neptunium recovery from the reprocessing process. A simulation result for a flow sheet containing Pu(VI) in the feed solution shows that Pu(VT) plays a role of scavenger of nitrous acid. The rate constant of neptunium reduction with n-butyraldehyde is evaluated by using the process data. The determined rate constant is available for the numerical simulation of neptunium concentration profiles in the reprocessing process. (C) 1998 Elsevier Science S.A.

引用

页码：689 / 692

页数：4

共 22 条

[1]

CHESNE A, 1966, IND AT, V7, P71

[2] NEW NEPTUNIUM PURIFICATION FACILITY AT HANFORD PUREX PLANT [J].

DUCKWORTH, JP ;

LARIVIERE, JRM .

INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT, 1964, 3 (04) :306-&

[3] NEW NEPTUNIUM RECOVERY FACILITY AT HANFORD PUREX PLANT [J].

DUCKWORTH, JP ;

MICHELS, LR .

INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT, 1964, 3 (04) :302-&

[4]

Flanary J.R., 1958, PROGR NUCL ENERGY 3, V2, P501

[5]

GROH HJ, 1970, PROGR NUCL ENERGY 3, V4, P507

[6] An approach for evaluating equilibrium and rate constants for the reaction of Np(V) with nitric acid in the Purex process using process data [J].

Homma, S ;

Takanashi, M ;

Koga, J ;

Mastsumoto, S ;

Ozawa, M .

NUCLEAR TECHNOLOGY, 1996, 116 (01) :108-114

[7] NEPTUNIUM RECOVERY + PURIFICATION AT HANFORD [J].

ISAACSON, RE ;

JUDSON, BF .

INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT, 1964, 3 (04) :296-&

[8]

Koch G., 1980, ACS SYM SER, V117, P411

[9]

KOCH G, 1969, KFK976

[10]

KOLARIK Z, 1984, ICHE S, V88

← 1 2 3 →