Abstract

A new approach to the destructive processing of the cation exchange resin KU-2×8-M (M = Cs, Ni, Cu, Fe, Nd, U) is considered based on the gas phase treatment in a nitrating atmosphere with subsequent chemical treatment of the conversion products. It is shown that exposure of the resin samples in an HNO₃(vapour)–air atmosphere at temperatures of 403–443 K for 8 and 24 h followed by dissolution of conversion products in 0.5 M NaOH and ozonation of the resulting solutions allows efficient utilization of the resin.

中文翻译：

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硝化气氛中阳离子交换树脂KU-2×8-M（M = Cs、Ni、Cu、Fe、Nd、U）的气相转化

摘要

基于硝化气氛中的气相处理和随后的化学处理，考虑了一种对阳离子交换树脂 KU-2×8-M（M = Cs、Ni、Cu、Fe、Nd、U）进行破坏性加工的新方法的转换产品。结果表明，将树脂样品在 403-443 K 温度下的 HNO ₃（蒸气）-空气气氛中暴露 8 小时和 24 小时，然后将转化产物溶解在 0.5 M NaOH 中并对所得溶液进行臭氧化，可实现高效利用树脂的。