The lithium isotope separation (LIS) plays a vital role in development of nuclear industry. The liquid–liquid extraction technologies open up new possibilities for LIS. This work presents preliminary results of the study on the extractions and separation of 6Li/7Li by mixed system, comprising amino-derivatives of benzo-15-crown-5 (4AB), ionic liquid and anisole. 4AB was used as an extractant. The eparation factor (α) is 1.031 ± 0.001, and abundance of 6Li in loaded organic phase is 7.76%. Meanwhile, the reason why 4AB has better separation efficiency than B15C5 was explored brief by Fourier transform infrared (FT-IR) spectrum and quantum chemical calculations.

中文翻译：

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锂同位素效应在水-苯甲醚离子液体双溶剂体系中4-Aminobenzo-15-crown-5萃取氯化锂

锂同位素分离（LIS）在核工业的发展中起着至关重要的作用。液液萃取技术为 LIS 开辟了新的可能性。这项工作展示了混合系统萃取和分离 6Li/7Li 的初步结果，包括苯并-15-冠-5 (4AB) 的氨基衍生物、离子液体和苯甲醚。4AB 用作萃取剂。分离因子(α)为1.031±0.001，负载有机相中6Li的丰度为7.76%。同时，通过傅里叶变换红外（FT-IR）光谱和量子化学计算，简要探讨了4AB比B15C5分离效率更高的原因。