Testing calix(4)arenes for the selective removal of aluminum from a pickling bath solution

Robert S. Gärtner*, Anke M. Berends, Geert Jan Witkamp

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


For the regeneration of an industrial pickling bath solution by a solvent extraction process different extractants were investigated for their capability to extract Al. The two main components of the pickling bath solution are phosphoric and hydrofluoric acid. This work describes the results of shake experiments with different p-tert-butyl-calix[4]arenes. Their capabilities to extract Al were compared with the results of Alamine 308 and another basic extractant, tetrabutyl-phosphonium-bromide (TBP-Br), that is [(C 4H 7) 4P] +Br -. Due to the low pH and the strong complexation of Al by fluoride ions in the pickling bath solution, no significant extraction was found for all the tested calixarenes.

Original languageEnglish (US)
Pages (from-to)159-162
Number of pages4
JournalJournal of Supramolecular Chemistry
Issue number1-3
StatePublished - Jan 2002
Externally publishedYes

Bibliographical note

Funding Information:
This research was supported financially by the Ministry of Economic Affairs, the Ministry of Housing, Spatial Planning and Environment and the Ministry of Education and Science of the Netherlands. We wish to thank Mr. Wangzhao Zhu and Mr. Duco Bosma for conducting the analysis by HR ICP-MS and ion chromatograph.


  • Aluminum
  • Calix[4]arene
  • Calixarene
  • Reactive extraction

ASJC Scopus subject areas

  • General Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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