Citation: Li-Kun Liu, Shu-Bao Xie, Hong-Bin Lv, Hu Zhang, Guo-An Ye. Studies on the separation treatment of high-level liquid waste by bisamide podand(Ⅰ): Extraction and separation of An(Ⅲ) from Ln(Ⅲ)[J]. Chinese Chemical Letters, ;2022, 33(7): 3439-3443. doi: 10.1016/j.cclet.2022.04.001 shu

Studies on the separation treatment of high-level liquid waste by bisamide podand(Ⅰ): Extraction and separation of An(Ⅲ) from Ln(Ⅲ)

China Institute of Atomic Energy, Beijing 102413, China

alston980780@sina.com

Received Date: 8 March 2022
Revised Date: 29 March 2022
Accepted Date: 1 April 2022
Available Online: 3 April 2022

Figures(9)

A process for actinide(Ⅲ) and lanthanum(Ⅲ) extraction separation from high-level liquid waste (HLLW) was proposed, with N,N,N',N'-tetraoctyl diglycolamide (TODGA) as the extractant, tri-n‑butyl phosphate (TBP) as the phase modifier and 2,6-bis[1-(propan-1-ol)-1,2,3-triazol-4-yl]pyridine (PyTri-Diol or PTD) as hydrophilic stripping agent. This 'hot test' was successfully carried out, achieving 99.92% removal of americium-241 (²⁴¹Am) with a separation factor SF_(Eu/Am) of 3.8 × 10³ in the actinide(Ⅲ) product solution. The results show that bisamide podand extractants can effectively realize the extraction and separation of actinide(Ⅲ) and lanthanum(Ⅲ) from Chinese commercial HLLW and thus have a bright practical application potential for the treatment of commercial HLLW.
- Bisamide podand,
- High-level liquid waste,
- Actinides,
- Lanthanides,
- Extraction separation
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沈阳化工大学材料科学与工程学院沈阳 110142