Tripodal polyamines: Adjustable receptors for cation extraction

Research output: Contribution to journalResearch articleContributedpeer-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 languageEnglish
Pages (from-to)1273-1281
Number of pages9
JournalSeparation Science and Technology
Volume53
Issue number8
Publication statusPublished - 24 May 2018
Peer-reviewedYes

External IDs

Scopus 85019741945
ORCID /0000-0001-7323-7816/work/142257365

Keywords

Keywords

  • Complex structure, liquid–liquid extraction, transition metals, tripodal amines