通过溶剂萃取法从废液中分离钯与铂和铑。

Separation of Pd from Pt and Rh by solvent extraction method from waste solution.

作者信息

Pianowska Karolina, Kluczka Joanna, Benke Grzegorz, Goc Karolina, Malarz Joanna, Leszczyńska-Sejda Katarzyna

机构信息

Łukasiewicz Research Network - Institute of Non-Ferrous Metals, Sowińskiego 5, 44-100, Gliwice, Poland.

Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6, 44-100, Gliwice, Poland.

出版信息

Sci Rep. 2024 Aug 1;14(1):17806. doi: 10.1038/s41598-024-68687-y.

DOI:10.1038/s41598-024-68687-y

PMID:39090228

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11294336/

Abstract

The paper investigated the possibility of extractive separation of palladium from platinum and rhodium with ionic liquid Cyphos IL 101. A technological solution obtained by dissolving waste materials was used as the test material. Based on the experiments performed, it was found that a 10% (v/v) solution of the Cyphos IL 101 ionic liquid in toluene allows the extraction of both Pd and Pt with an efficiency of 99% from the initial solution when extraction is carried out at the pH 0.5, v:v phase ratio 1:1 and contact time of 15 min. Moreover, the research proved that it is possible to separate Pd from Pt at the stripping stage using a 0.1 mol/dm thiourea solution while maintaining a high selectivity coefficient.

摘要

该论文研究了使用离子液体Cyphos IL 101从铂和铑中萃取分离钯的可能性。将通过溶解废料获得的工艺溶液用作测试材料。基于所进行的实验发现，当在pH 0.5、相比v:v为1:1且接触时间为15分钟的条件下进行萃取时，Cyphos IL 101离子液体在甲苯中的10%（v/v）溶液能够以99%的效率从初始溶液中萃取钯和铂。此外，研究证明在反萃阶段使用0.1 mol/dm硫脲溶液可以在保持高选择性系数的同时将钯与铂分离。