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Title: Separation of Pimelic Acid Using Tri-n-octylamine in Various Organic Solvents by Reactive Extraction: Equilibrium and Modeling
Authors: Zeidan, Hani
Yurdakul, Merve
Martı, Mustafa Esen
Keywords: Response-Surface Methodology
Excess Molar Volumes
Butyl Phosphate
Levulinic Acid
Aliquat 336
Issue Date: 2022
Publisher: Amer Chemical Soc
Abstract: Separation of carboxylic acids from dilute aqueous solutions is a challenging problem, and reactive extraction has been examined as an attractive alternative for this process. This study aims to investigate the reactive extraction of pimelic acid (PA) using tri-n-octylamine (TOA) in 1-hexanol, 1-octanol, xylene, and n-hexane. The highest extraction efficiency (E (%)) and distribution coefficient (K-D) were obtained at pH 3, which is the unadjusted pH of the aqueous PA solution. Extractive efficiency varied inversely with temperature and initial PA concentration but increased with the increase in TOA amount. The highest E (%) and K-D values (98.5% and 67.2, respectively) were obtained with 1-hexanol at initial TOA and PA concentrations of 0.2700 and 0.0375 mol/kg, respectively. The process was modeled using multilinear regression, and the model closely correlated with experimental results for all organic solvents tested.
ISSN: 0021-9568
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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