Highly selective transport of organic compounds by using supported liquid membranes based on ionic liquids

Luís C. Branco, João G. Crespo, Carlos A. M. Afonso

Research output: Contribution to journalArticle

205 Citations (Scopus)
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Abstract

Continuous separation of organic compounds is possible by selective transport through a supported liquid membrane, which contains the room-temperature ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate immobilized in the porous structure of a hydrophilic polyvinylidene fluoride membrane. A mixture (1:1 molar ratio) of the isomeric amines diisopropylamine (S1) and triethylamine (S2) was continuously fractionated over 14 days without any observable decrease in selectivity (see scheme).

Original languageEnglish
Pages (from-to)2771-2773
Number of pages3
JournalAngewandte Chemie-International Edition
Volume41
Issue number15
DOIs
Publication statusPublished - 2 Aug 2002

Keywords

  • Amines
  • Ionic liquids
  • Membranes
  • Selective transport
  • Separation processes

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