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Updated: Jul 16, 2025

Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction
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Published on: August 23, 2018

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从废弃的三向催化剂中高效地化出白金组金属:关于动力学和机制的研究

Shiqiang Sun1, Wenting Zhao1, Chenxi Jin1

  • 1School of Environmental Science and Engineering, Tongji University, Shanghai, PR China.

Environmental research
|September 16, 2023
PubMed
概括

本研究介绍了一种绿色,无氧化剂的方法,用于在碳酸预处理后使用盐酸从废弃的三向催化剂 (TWC) 中回收组金属 (PGM). 在最佳条件下,可以实现Pt,Pd和Rh的高泄漏率.

关键词:
复杂的氧化物 复杂的氧化物离子交换机 离子交换机洗残留物 洗残留物((2) CO ((3) 化烧结过程使用过的汽车催化剂.

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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