The effect of temperature on forward/back extraction using an amine extractant for the recovery of cyclic hydroxy carboxylic acids

Mariam G. Sadaka, Antonio Garcia

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Forward extraction of shikimic and quinic acids with tridodecylamine (TDA)/1-heptanol is favored at low temperature. In back extraction, higher temperatures and the addition of oleic acid as a competitive displacer provided 80% recovery for shikimic acid and 70% recovery for quinic acid. Higher recoveries are possible since these values are limited by the forward extraction step. The effect of temperature swing on carboxylic acid extraction by amines is primarily due to the change in amine basicity with temperature. The addition of a displacer lowers the energy cost by lowering the temperature required in back extraction.

Original languageEnglish (US)
Pages (from-to)1667-1680
Number of pages14
JournalSeparation Science and Technology
Volume33
Issue number11
DOIs
StatePublished - Jan 1 1998

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Process Chemistry and Technology
  • Filtration and Separation

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