选择性Co (II) 和Ni (II) 分离使用三基 (四基) 酸二甲酸离子液
Anđela Kovačević1, José Alejandro Ricardo García1, Marilena Tolazzi1
1Chemical Technologies Laboratories, Polytechnic Department of Engineering, University of Udine, Via Cotonificio 108, 33100 Udine, Italy.
Molecules (Basel, Switzerland)
|October 16, 2024
概括
这项研究表明,离子液体三甲四甲二酸盐有效地从盐酸溶液中提取,而不是. 在高酸度下,使用液液提取和聚合物包容膜实现了最佳分离.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 分离科学 分离科学
背景情况:
- 离子液体 (ILs) 为选择性金属离子提取提供可调节的特性.
- 从 (Ni) 中分离 (Co) 是水电金学中至关重要的.
- 基于碳酸盐的ILs为Co/Ni分离提供了一种新的方法.
研究的目的:
- 通过使用离子液体[P66614][Dec]从HCl溶液中提取Co(II) 的液体-液体.
- 为了评估HCl度对Co(II) 提取和Co/Ni选择性的影响.
- 开发和测试聚合物纳入膜 (PIMs),其中包含 [P66614][Dec] 用于Co2分离.
主要方法:
- 液体-液体提取实验,使用不同度的HCl.
- 用不同的PVC:[P66614][Dec]比率制备和表征聚合物纳入膜 (PIMs).
- 使用适当的分析技术,分析 (II) 和 (II) 度.
主要成果:
- 提取效率和Co/Ni选择性高度依赖于HCl度,达到6M HCl以上的峰值.
- 酸离子的质子化和金属物种化解释了观察到的提取行为.
- 一个30:70PVC:[P66614][Dec]比率的PIM显示了有效的Co(II) 提取,与8M HCl的双相液提取相似.
结论:
- 离子液体[P66614][Dec]显示出从HCl溶液中选择性提取Co (II) 的巨大潜力.
- 高酸度对于实现高效的Co/Ni分离至关重要.
- 结合碳酸盐基IL的PIM是一种可行的技术,用于实际的CO/Ni分离应用.
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