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混合三烷基氧化膦 (TRPO)是一种优良的镧系元素和锕系元素萃取剂 ,已用于高放废液的α核素的萃取分离。本文用傅里叶红外光谱法研究γ辐照的 30 % TRPO-煤油 -HNO3 体系的辐照稳定性 ,结果显示 ,该萃取剂对放射性辐射是稳定的 ,主要的辐解产物是硝基烷和羧酸。
Mixed trialkylphosphine oxide (TRPO) is an excellent lanthanide and actinide extractant that has been used for the extraction and separation of α-nuclides from high-level liquid waste. In this paper, Fourier transform infrared spectroscopy was used to study the radiation stability of γ-irradiated 30% TRPO-kerosene-HNO3 system. The results show that the extractant is stable to radioactive radiation. The main radiolysis products are nitroalkane and carboxylic acid.