HALEU regulus 铸造渣的氯化处理

IF 3.3 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Progress in Nuclear Energy Pub Date : 2024-09-26 DOI:10.1016/j.pnucene.2024.105464

Guy L. Fredrickson, Brennan C. Mohr, Michael N. Patterson

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引用次数: 0

摘要

对铀铸造过程中形成的渣滓进行了范围研究。目的是尽量减少铀在渣滓废物中的损失。渣滓主要是金属铀和氧化铀的混合物，还有一小部分坩埚和坩埚涂层材料。反应化学反应是在 500 °C 的 LiCl-KCl 共晶载盐中进行的。加入氯化铁后，通过将氯化铁还原成金属铁，将金属铀氯化成 UCl3。金属铀氯化后，向盐中加入金属锆。残留的 FeCl2 通过将 FeCl2 还原成金属铁，将金属锆氯化成 ZrCl4。反过来，ZrCl4 通过将 ZrCl4 转化为氧化锆，将氧化铀氯化为 UCl3。氯化反应的有效性通过循环伏安图进行定性验证，循环伏安图显示盐中是否存在 FeCl2 和 UCl3。

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Chlorination of HALEU regulus casting dross

A scoping study was performed for chlorinating dross formed during uranium casting operations. The purpose is to minimize the losses of uranium to dross wastes. The dross is primarily a mixture of uranium metal and uranium oxide with a minor fraction of crucible and crucible coating materials. The reaction chemistries were performed in a carrier salt of LiCl-KCl eutectic at 500 °C. The addition of FeCl₂ chlorinated the uranium metal to UCl₃, by reducing the FeCl₂ to iron metal. After the uranium metal was chlorinated, zirconium metal was added to the salt. The residual FeCl₂ chlorinated the zirconium metal to ZrCl₄, by reducing the FeCl₂ to iron metal. In turn, the ZrCl₄ chlorinated the uranium oxide to UCl₃, by converting the ZrCl₄ to zirconium oxide. The effectiveness of the chlorination reactions was qualitatively verified by cyclic voltammograms that indicated the presence or absence of FeCl₂ and UCl₃ in the salt.

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来源期刊

Progress in Nuclear Energy 工程技术-核科学技术

CiteScore

5.30

自引率

14.80%

发文量

331

审稿时长

3.5 months

期刊介绍： Progress in Nuclear Energy is an international review journal covering all aspects of nuclear science and engineering. In keeping with the maturity of nuclear power, articles on safety, siting and environmental problems are encouraged, as are those associated with economics and fuel management. However, basic physics and engineering will remain an important aspect of the editorial policy. Articles published are either of a review nature or present new material in more depth. They are aimed at researchers and technically-oriented managers working in the nuclear energy field. Please note the following: 1) PNE seeks high quality research papers which are medium to long in length. Short research papers should be submitted to the journal Annals in Nuclear Energy. 2) PNE reserves the right to reject papers which are based solely on routine application of computer codes used to produce reactor designs or explain existing reactor phenomena. Such papers, although worthy, are best left as laboratory reports whereas Progress in Nuclear Energy seeks papers of originality, which are archival in nature, in the fields of mathematical and experimental nuclear technology, including fission, fusion (blanket physics, radiation damage), safety, materials aspects, economics, etc. 3) Review papers, which may occasionally be invited, are particularly sought by the journal in these fields.