γ-ray induced radiolysis of [C_2mim][NTf_2] and its effects on Dy~(3+) extraction

• 作 者: 袁威津 敖银勇 赵龙 韦悦周 翟茂林 李久强
• 机 构: Nuclear Chemical Engineering Laboratory, School of Nuclear Science and Engineering,Shanghai Jiao Ton
• 出 处: Nuclear Science and Techniques
• 发表日期: 2015年01期
• 关键词: partitioning irradiation imide recycling irradiated pyridine attributed ionic ac

The water-soluble radiolytic products of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ionic liquid([C2mim][NTf2]) under γ-radiation, such as CF3 SOOH, CF3SO2NH2, HF, and H2SO3, were identified by using1 H NMR,19 F NMR, and ion chromatography. The extraction behavior of Dy3+using irradiated [C2mim][NTf2] in combination with 2,6-di(5,6-diisobutyl-1,2,4-triazin-3-yl)pyridine(isobutyl-BTP)was studied and the abnormal increase of Dy3+partitioning after irradiation is mainly attributed to the precipitation formed between Dy3+and radiolytic products of [C2mim][NTf2](F–and SO2–3). Washing irradiated[C2mim][NTf2] with water provides a simple method for ionic liquid recycling.

The water-soluble radiolytic products of 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide ionic liquid ([C2mim] [NTf2]) under γ- radiation, such as CF3 SOOH, CF3SO2NH2, HF, and H2SO3, H NMR, 19 F NMR and ion chromatography. The extraction behavior of Dy3 + using irradiated [C2mim] [NTf2] in combination with 2,6-di (5,6-diisobutyl-1,2,4-triazin- yl) pyridine (isobutyl-BTP) was studied and the abnormal increase of Dy3 + partitioning after irradiation is mainly attributed to the precipitation formed between Dy3 + and radiolytic products of [C2mim] [NTf2] (F-and SO2-3). irradiated [C2mim] [NTf2] with water provides a simple method for ionic liquid recycling.