Radiochemical Reprocessing of Nuclear Materials Containing Uranium Silicides: Silicon Distribution on Dissolution of Voloxidation Products of Unirradiated Triuranium Disilicide

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2026-09-15 DOI:10.1134/S1066362226040041

A. V. Boyarintsev, A. G. Koptyaeva, E. V. Boyarintseva, S. V. Artobolevskii, L. N. Podrezova, A. Yu. Shadrin, S. I. Stepanov

引用次数: 0

Abstract

The chemical behavior of silicon in the initial steps of reprocessing of spent uranium silicide nuclear fuel (U₃Si₂-SNF) in nitric acid solutions was studied. The composition of voloxidation products of triuranium disilicide (U₃Si₂) and their solubility in nitric acid solutions were determined. The U₃Si₂ oxidation products are U₃O₈, elemental silicon, and silicon dioxide (SiO₂). The influence of the voloxidation and dissolution conditions on the silicon distribution into uranium-containing nitric acid solutions was studied for powders of voloxidized U₃Si₂.

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含硅化铀核材料的放射化学后处理：未辐照的二硅化三铀氧化产物溶解中的硅分布

研究了硅化铀乏燃料（U3Si2-SNF）在硝酸溶液中后处理初期硅的化学行为。测定了二硅化三铀（U3Si2）氧化产物的组成及其在硝酸溶液中的溶解度。U3Si2氧化产物为U3O8、单质硅和二氧化硅（SiO2）。研究了氧化后的U3Si2粉末的氧化和溶解条件对硅在含铀硝酸溶液中的分布的影响。

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.