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使用双功能离子液体从模拟的二次来源中选择性回收,而不是和 [TOA][Cy272]

Roshanak Adavodi¹, Adriana Zuffranieri¹, Pietro Romano¹

¹Department of Industrial and Information Engineering and Economics (DIIIE), Engineering Headquarters of Roio, University of L'Aquila, 67100 L'Aquila, Italy.

Materials (Basel, Switzerland)

|August 28, 2025

概括

这项研究引入了一种新的离子液体[TOA][Cy272],用于有效地从危险废物中回收. 新方法实现了高回收和选择性,为战略性金属开采提供了可持续的解决方案.

科学领域:

材料科学
化学工程
环境科学

背景情况:

越来越多的超低硫燃料需求需要从危险的脱硫催化剂中进行战略性金属回收.
废弃HDS催化剂由于其危险性和含有贵金属的含量而带来环境风险.

研究的目的:

评估特定任务的离子液体[TOA][Cy272],用于从Co-Ni-Mo溶液中选择性回收 (Mo).
优化提取条件并评估Mo, (Co) 和 (Ni) 的剥离效率.

主要方法:

通过酸中和合成[TOA][Cy272]离子液体.
液体-液体提取实验具有不同的离子液体度,pH值和有机/水的比率.
福里埃变换红外光谱 (FT-IR) 用于表征.
使用氧化和盐酸进行脱皮研究.

主要成果:

在35体积%[TOA][Cy272]和pH2的优化提取下,获得了94%的Mo回收,具有很高的选择性 (βMo/Ni=12,βMo/Co=7.5).
由于离子液和度较高,和的吸收仍然很低 (≤15%),选择性降低.
一个两步提取/剥离过程产生了~95%的Mo回收,有效地将Mo从Co和Ni中分离出来.

结论:

[TOA][Cy272]离子液证明了Mo从混合金属流中有效和选择性的回收.
开发的方法为从工业废物中提取战略性金属提供了快速,可再生和环保的方法.

关键词:

矿水解硫催化剂离子液体金属开采化没有恢复情况选择性

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