Gas Phase Conversion of Cation Exchange Resin KU-2x8-M (M = Cs, Ni, Cu, Fe, Nd, U) in a Nitrating Atmosphere

被引：0
|
作者：
Kulyukhin, S. A. [1 ]
Gordeev, A. V. [1 ]
Seliverstov, A. F. [1 ]
Kazberova, A. Yu. [1 ]
Kostikova, G. V. [1 ]
Krasavina, E. P. [1 ]
Nevolin, Yu. M. [1 ]
机构：
[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia
来源：
RADIOCHEMISTRY | 2023年 / 65卷 / 04期
关键词：
cation exchange resin; KU-2x8; gas phase treatment; nitric acid; dissolution; ozonation;
D O I：
10.1134/S1066362223040057
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new approach to the destructive processing of the cation exchange resin KU-2x8-M (M = Cs, Ni, Cu, Fe, Nd, U) is considered based on the gas phase treatment in a nitrating atmosphere with subsequent chemical treatment of the conversion products. It is shown that exposure of the resin samples in an HNO3(vapour)-air atmosphere at temperatures of 403-443 K for 8 and 24 h followed by dissolution of conversion products in 0.5 M NaOH and ozonation of the resulting solutions allows efficient utilization of the resin.
引用
收藏
页码：431 / 441
页数：11
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