Tripodal polyamines: Adjustable receptors for cation extraction
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Extraction experiments of a series of tris(2-aminoethyl)amine-based ligands with different aromatic substituents act as efficient extractants for transition metals. Octanol-water distribution measurements, determined stability constants of Ag(I) complexes and Zn(II) extraction studies with different counterions point to the extraction efficiency in dependence of the ligand lipophilicity and the specific structure of the ligand. Competitive extraction experiments showed a selective extraction of Cu(II) from a mixture of Co(II), Ni(II), Cu(II), Zn(II), and Cd(II). Additional hydroxyl groups in (tris(2-hydroxybenzylaminoethyl)amine lead to a loss of this selectivity with extraction yields of 46%, 86% and 97% for Co(II), Ni(II) and Cd(II) ions.
Details
Original language | English |
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Pages (from-to) | 1273-1281 |
Number of pages | 9 |
Journal | Separation Science and Technology |
Volume | 53 |
Issue number | 8 |
Publication status | Published - 24 May 2018 |
Peer-reviewed | Yes |
External IDs
Scopus | 85019741945 |
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ORCID | /0000-0001-7323-7816/work/142257365 |
Keywords
Keywords
- Complex structure, liquid–liquid extraction, transition metals, tripodal amines