Justification of Explosion Safety Conditions in Evaporation of Nitric Acid Solutions Containing Various Reductants

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2025-12-14 DOI:10.1134/S1066362225050078

E. V. Belova, E. R. Nazin, A. S. Obedkov, B. F. Myasoedov

引用次数: 0

Abstract

Causes of the initiation of exothermic processes in nitric acid solutions containing reductants are analyzed. The required parameters of the occurring exothermic reactions are determined. The main conditions of the explosion safety of solution evaporation operations in commercial evaporators at radiochemical plants are formulated. The radiolysis of mixtures increases the onset temperature T_st of the exothermic reaction, and uranyl nitrate does not affect T_st. The explosion safety in evaporation of reductant solutions can be ensured even if their heating is accompanied by various exothermic reactions.

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含各种还原剂的硝酸溶液蒸发爆炸安全条件的论证

分析了在含还原剂的硝酸溶液中引发放热过程的原因。确定了所发生的放热反应所需的参数。阐述了放射性化工厂商用蒸发器中溶液蒸发操作爆炸安全的主要条件。混合物的辐射分解使放热反应的起始温度Tst升高，而硝酸铀酰对Tst没有影响。还原剂溶液的加热过程中即使伴有各种放热反应，也能保证其蒸发爆炸的安全性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiochemistry CHEMISTRY, INORGANIC & NUCLEAR-

CiteScore

1.30

自引率

33.30%

发文量

期刊介绍： Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.