使用Alamine 336的溶剂提取和剥离过程与的案例研究.
Fazel Zahakifar1, Fereshte Khanramaki2, Davood Ghoddocy Nejad2
1Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran. Fzahakifar@aeoi.org.ir.
Scientific reports
|April 6, 2025
概括
这项研究优化了在煤油中使用 Alamine 336 的 (VI) 的溶剂提取,达到 99.72% 的效率. 使用碳酸的剥离非常有效,证明了有效的回收和净化.
科学领域:
- 水电金术是指用水电金术进行金术.
- 核化学 核化学 核化学
- 分离科学 分离科学
背景情况:
- 从酸硫酸盐溶液中回收 (VI) 对于核燃料再加工至关重要.
- 溶剂提取是分离和净化的关键技术.
- 煤油中的阿拉胺336为高效的提取提供了潜力.
研究的目的:
- 综合研究利用阿拉336.6从酸硫酸盐溶液中用溶剂提取 (VI).
- 研究各种参数对提取效率的影响.
- 为优化回收的剥离过程,并评估净化选择性.
主要方法:
- 使用不同度的硫酸,阿拉胺336和 (VI) 进行了溶剂提取实验.
- 接触时间,有机/水相比率和温度等参数被系统地改变.
- 使用不同的盐和酸溶液,包括碳酸,评估了剥离效率.
主要成果:
- 在最佳条件下实现了99.72%的提取效率 (0.15 mol L-1 H2SO4,0.05 mol L-1 Alamine 336,25°C, 1:1 O/A比率).
- 发现提取过程是快速的,外热的,自发的,Log Kex为5.92.
- 用0.5mol L-1 (NH4) 2CO3进行剥离,在单个步骤中回收了99.87%的,这表明的选择性很高.
结论:
- 用Alamine 336进行溶剂提取是从酸硫酸盐液中回收 (VI) 的高效方法.
- 硫酸度显著影响的提取效率.
- 该过程对净化和有效回收负载有机相具有出色的选择性.
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