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具有长碳链的胺类化合物不仅对铀的萃取率与选择性均较高,而且辐照稳定性能也良好,并能用于多种无机酸体系,所以它们的研究与应用得到了广泛的重视。三辛胺、三异辛胺、三混合脂肪胺及二(正十二基)胺(通常它们也被称为液态阴离子交换剂),已在铀化学浓缩物的生产和高纯度轴化合物的制备方面获得工业规模的应用。胺型萃取剂在由矿石浸出液直接制取高纯度铀化合物及铀与其裂变元素分离中的应用研究也取得了显著的进展。
Amine compounds with long carbon chains not only have high extraction rate and selectivity for uranium but also have good radiation stability and can be used in many kinds of inorganic acid systems. Therefore, their research and application have received a great deal of attention . Trioctylamine, triisooctylamine, triamide, and di-n-dodecyl amine (often also referred to as liquid anion exchangers) have been used in the production of uranium chemical concentrates and in the preparation of high purity shaft compounds Aspects of industrial-scale applications. Significant advances have also been made in the application of amine-based extractants in the direct preparation of highly pure uranium compounds from ore leachate and the separation of uranium from its fissile elements.