Equilibria and Mathematical Models of Extraction of Citric Acid with Isodecanol/n-Parrafins Solutions of Trioctylamine

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Kostadin Nikolovski¹  Filimena A. Poposka¹  Radmila Tomovska¹ 

[1] Faculty of Technology and Metallurgy, The “Sv. Kiril i Metodij” University

关键词: Liquid-Liquid Extraction;    Equilibria;    Citric Acid;    Trioctylamine;    Isodecanol;   

DOI  :  10.1252/jcej.30.777

来源: Maruzen Company Ltd

【 摘 要 】

References(13)Cited-By(24)Extraction equilibria of citric acid from aqueous solutions with trioctylamine in isodecanol/n-parafrins mixtures, were studied as a function of acid, amine and isodecanol concentrations at 25°C. The equilibrium data were interpreted by “chemical modeling” approach in which existence of (1,1) and (1,2) acid-amine complexes in the organic phase, were assumed. The corresponding equilibrium constants, which represent the experimental results the best, were determined.Simpler mathematical model which refer to modified Langmuir isotherm, was also used for interpretation of the equilibrium data. Extraction constants and overall acid stoichiometric coefficient, which represent the experimental results the best, were determined. This mathematical form could be suitable in the analysis and design of the process in dynamic conditions.

【 授权许可】

Unknown