Seisenbaeva, Gulaim
- Department of Molecular Sciences, Swedish University of Agricultural Sciences
Conference paper2024
Molecular Mechanisms in Specific Separation of Late Transition Metals from Rare Earth Elements
Seisenbaeva, Gulaim A.
Abstract
In recycling, the separation of rare earth elements (REE) from late transition metals (LTM) represents a principal challenge. While iron can easily be separated by controlled increase in pH, separation of Co, Ni, and Cu requires application of advanced approaches including fractional crystallization, solvent extraction, or use of solid adsorbents. The latter can be made selective by grafting of specific ligands reacting in a different manner with targeted classes of metal cations. Applying molecular model approach combined with advanced spectroscopic measurements, we were able to visualize principally different reaction pathways between REE and LTM in uptake by poly-amino ligands. The observed differences permit to tailor adsorbents with pronounced selectivity on both adsorption and desorption of cations of interest.
Keywords
Rare earth elements; Late transition metal; Hybrid silica adsorbent; Surface functionalization; Molecular models
Published in
The minerals, metals & materials series
2024, pages: 97-104
Title: RARE METAL TECHNOLOGY 2024
Publisher: SPRINGER INTERNATIONAL PUBLISHING AG
Conference
11th Symposium on Rare Metal Extraction and Processing, MAR 03-07, 2024, Orlando, FL
SLU Authors
UKÄ Subject classification
Metallurgy and Metallic Materials
Publication identifier
- DOI: https://doi.org/10.1007/978-3-031-50236-1_10
- ISBN: 978-3-031-50235-4
- eISBN: 978-3-031-50236-1
Permanent link to this page (URI)
https://res.slu.se/id/publ/132560