高温气冷堆乏核燃料结晶净化后母液再处理技术

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2024-05-16 DOI:10.1134/S1066362224020061

L. I. Tkachenko, V. L. Vidanov, E. V. Kenf, N. Yu. Volodina, Ya. O. Pleshakov, A. Yu. Shadrin

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引用次数: 0

摘要

摘要试验了用于 SNF 后处理的萃取剂二苯基-N,N-二辛基氨基甲酰基甲基氧化膦和二苯基-N,N-二异丁基氨基甲酰基甲基氧化膦。确定了铀和 TPE-REE 的提取和分离条件。提出了高温气冷堆 SNF 后处理流程图。经动态测试，至少分离出 99.9% 的铀和钚以及至少 99.5% 的镅和稀土元素。回收了 TPE + REE 和 U + Pu 部分。铀+钚馏分含有大约 5%的镅，而热塑性聚乙烯+稀土元素馏分中的铀和钚含量低于 0.1%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Technology for Reprocessing Mother–Wash Solution after Crystallization Purification of Spent Nuclear Fuel from High Temperature Gas-Cooled Reactor

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Technology for Reprocessing Mother–Wash Solution after Crystallization Purification of Spent Nuclear Fuel from High Temperature Gas-Cooled Reactor

The extractants diphenyl-N,N-dioctylcarbamoylmethylphosphine oxide and diphenyl-N,N-diisobutylcarbamoylmethylphosphine oxide for the SNF reprocessing were tested. The conditions for extraction and separation of uranium and TPE–REE were determined. A flowsheet was proposed for reprocessing SNF from high-temperature gas-cooled reactors. Upon dynamic testing, at least 99.9% of uranium and plutonium and at least 99.5% of americium and rare earth elements were separated. The TPE + REE and U + Pu fractions were recovered. The U + Pu fraction contained approximately 5% Am, while the TPE + REE fraction had less than 0.1% U and Pu.

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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.