有机废液中Pu(Ⅳ)的回收方法研究进展

    Review of Recovery of Pu(Ⅳ) in Organic Waste

    • 摘要: 高放钚废液的回收处理是核工业中的重要环节和技术难点,络合法能够快速地从新鲜有机废液中反萃出Pu(Ⅳ)、短暂放置的钚废液可采用溶剂还原法还原后进行回收,其中简要介绍了无机还原剂Fe(Ⅱ)、U(Ⅳ)和有机无盐还原剂羟胺类衍生物、脲类衍生物、肼类衍生物、醛类、羟肟酸类及醛肟类,并总结了其优缺点。近年来,为解决长期放置的钚废液,电化学法和光化学法得到了初步研究。本文概括了几种回收方法的研究动向,并对其主要问题进行了分析与展望。

       

      Abstract: The recovery of Pu(Ⅳ) is an important part and technical difficulities of the nuclear industry. Pu(Ⅳ) can be stripped from fresh organic waste by complexation method. The reduction method can treat waste placed in a short time. Reductants include inorganic reductants and organic reductants, such as hydroxylamine, urea, hydrazine, aldehydes, hydroxamic acids, aldehydes oximes and so on. For the purpose of solving the waste placed in a long time, the electrochemical method, photochemical method have been explored. This paper summarizes the trend of the recovery methods. Furthermore, some chemical problems are analyzed and discussed.

       

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