Palladium behavior in the presence of irradiated diluent in the PUREX process

被引：2
|
作者：
De Sio, S. [1 ]
Klur, I. [2 ]
Tison, E. [3 ]
Bouyer, C. [4 ]
Lebeau, D. [5 ]
Goutelard, F. [5 ]
Sejourne, L. [6 ]
Eysseric, C. [4 ]
Vigier, N. [1 ]
机构：
[1] AREVA, NC, DOR, RDP, 1 Pl Jean Millier, F-92084 Paris, France
[2] AREVA, NC, DT, EP,P, La Hague, France
[3] AREVA, NC, DT, EP,EL, La Hague, France
[4] CEA Marcoule, DEN, DRCP, BP 17171, F-30207 Bagnols Sur Ceze, France
[5] CEA Saclay, DEN, DPC, F-91191 Gif Sur Yvette, France
[6] CEA Saclay, DEN, DMN, F-91191 Gif Sur Yvette, France
来源：
ATALANTE 2016 INTERNATIONAL CONFERENCE ON NUCLEAR CHEMISTRY FOR SUSTAINABLE FUEL CYCLES | 2016年 / 21卷
关键词：
palladium; TPH; degradation products; radiolysis; precipitate;
D O I：
10.1016/j.proche.2016.10.003
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
AREVA La Hague plants UP3 and UP2-800 started operations to reprocess spent nuclear fuel in 1990 and 1994 respectively. Aging equipment in these plants is a cause for concern as it could lead to process dysfunctions or production rate decrease. A few years ago, several columns had to be replaced in UP3-T4 plutonium purification facility because of clogging. Analyses revealed that TPH degradation products could be responsible for precipitating palladium compounds. 1 M NaOH solutions proved to be efficient to dissolve most of the precipitate. Therefore, several columns in both UP3 and UP2-800 are from now on washed periodically with 1 M NaOH solutions to avoid further clogging and to dissolve current precipitates. (C) 2016 The Authors. Published by Elsevier B.V.
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页码：17 / 23
页数：7
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