Exothermic Processes in Mixtures of TBP with Uranyl Nitrate

被引：2
|
作者：
Nazin, E. R. [1 ]
Zachinyaev, G. M. [1 ]
Belova, E. V. [1 ,2 ]
Skvortsov, I. V. [1 ,2 ]
Myasoedov, B. F. [2 ]
机构：
[1] Sci & Tech Ctr Nucl & Radiat Safety, Ul Malaya Krasnoselskaya 2-8,Korp 5, Moscow 107140, Russia
[2] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Leninskii Pr 31,Korp 4, Moscow 119071, Russia
来源：
RADIOCHEMISTRY | 2019年 / 61卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
tributyl phosphate; diluents; uranyl nitrate; thermal stability; exothermic processes;
D O I：
10.1134/S1066362219060043
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The thermal stability of mixtures of TBP and its solutions in diluents with uranyl nitrate (UN) at 150-200 degrees C was evaluated. Exothermic self-accelerating oxidation processes (thermal explosions) arise in mixtures with TBP at 160-170 degrees C. In mixtures of UN with solutions of TBP in diluents, the intensity of the exothermic processes is appreciably lower. The presence of the extractant in UN solutions fed to high-temperature operations gives rise to the hazard of the initiation of intense exothermic processes.
引用
收藏
页码：665 / 670
页数：6
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