稀土从含的酸盐溶液中通过不平衡提取选择性地分离
Linlin Chang1, Jian Li1, Dongyue Xie2
1School of Rare Earths, University of Science and Technology of China, Hefei, 230026, China; Ganjiang Innovation Institute of the Chinese Academy of Sciences, Ganzhou, 341000, China; Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganzhou, 341000, China.
Journal of environmental management
|February 25, 2026
概括
本研究介绍了一种高效的方法,用于使用非平衡提取来分离稀土元素 (REEs) 和. 该过程实现了高选择性和高效率,不需要肥化,为水力金应用提供了一个环保的替代方案.
科学领域:
- 水电金术是指用水电金术进行金术.
- 分离科学 分离科学
- 稀土元素化学 稀土元素化学
背景情况:
- 传统的稀土元素 (REE) 和 (Al(III)) 分离依赖于溶剂提取,通常使用肥化.
- 肥化方法具有较低的分离系数,并产生大量的超废水.
研究的目的:
- 开发一种高效且对环境无害的选择性REE (III) 和Al (III) 分离过程.
- 在乙酸盐溶液中使用未被肥化P507进行不平衡提取的研究.
主要方法:
- 在非平衡的溶剂提取中,在乙酸介质中使用未被肥化P507.
- 动力控制以提高REE (III) 对Al (III) 的选择性.
- 提取条件的优化和机械研究 (最大负载,光谱分析).
主要成果:
- 在没有先前去除Al(III) 的情况下,实现了RE(III) 与Al(III) 的选择性分离.
- 证明了La (III) 的质量转移系数是Al (III) 的15.77倍.
- 获得了94.04%的La(III) 提取效率,分离系数 (βLa/Al) 为102.8.8.
结论:
- 拟议的非平衡提取过程提供了高效的,非肥化 REEs 和 Al. 分离.
- 该机制涉及阴离子交换和中性复合物提取,形成1:2:1三元复合物.
- 这种方法为水力金应用提供了一个有希望的,环保的方法.
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