A scheme for purifying regenerated uranium hexafluoride in the intermediate withdrawal in a cascade where low-enrichment uranium is produced from natural uranium in the main withdrawal is examined. It is shown that ~(232,234,236)U removal can be accomplished by feeding regenerated uranium hexafluoride into the step minimizing the total feed flow over all steps or into the first waste step of the cascade. Low-enrichment uranium satisfying ASTM C 996-10 specifications for commercial uranium can be efficiently produced from the purified product obtained in the intermediate withdrawal. The low-enrichment uranium obtained directly in the intermediate withdrawal as well as the product present in the main withdrawal produced from slightly contaminated natural uranium also meet these specifications.
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机译：研究了一种在级联中间提纯中再生再生六氟化铀的方案，该级联中主要提纯中的天然铀生产了低浓铀。结果表明，通过将再生的六氟化铀送入使所有步骤中的总进料流最小化的步骤或级联反应的第一个废物步骤中，可以完成〜（232,234,236）U的去除。可以从中间提取过程中获得的提纯产物中有效地生产出满足ASTM C 996-10规格的低浓铀。直接从中间抽提物中获得的低浓铀以及由轻微污染的天然铀生产的主要抽提物中存在的产品也符合这些规格。
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