Reduction kinetics of Np(VI) by n-butyraldehyde in tributyl phosphate diluted with n-dodecane

被引：10
|
作者：
Ban, Y [1 ]
Asakura, T [1 ]
Morita, Y [1 ]
机构：
[1] Japan Atom Energy Res Inst, Dept Fuel Cycle Safety Res, Proc Safety Lab, Tokai, Ibaraki 3191195, Japan
来源：
RADIOCHIMICA ACTA | 2004年 / 92卷 / 12期
关键词：
Np(VI) reduction; n-butyraldehyde; TBP; reduction kinetics;
D O I：
10.1524/ract.92.12.883.55113
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reduction kinetics of Np(VI) by n-butyraldehyde in 30% TBP solution diluted with n-dodecane were analyzed by spectrophotometry. Based on the results of both n-butyraldehyde and nitric acid concentration dependences on the Np(VI) reduction reaction, the rate equation was obtained as -d[Np(VI)]/dt = k[n-C3H7CHO](0.8)[HNO3](-2.0)[Np(VI)](t) where k =(1.0 +/- 0.2)x 10(-3) M-1.2 min(-1) at 294 +/- 1K. The activation energy of the reaction was 76 +/- 5 kJ/mol.
引用
收藏
页码：883 / 887
页数：5
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