Adsorption Isotherms for Removal of Linoleic Acid from Ethanolic Solutions Using the Strong Anion Exchange Resin Amberlyst A26 OH

被引：16

作者：

Cren, Erika C. ^{[1
]}

Morelli, Ana C. ^{[1
]}

Sanches, Thais ^{[1
]}

Rodrigues, Christianne E. ^{[2
]}

Meirelles, Antonio J. A. ^{[1
]}

机构：

[1] Univ Campinas UNICAMP, Dept Food Engn DEA FEA, EXTRAE, BR-13083862 Campinas, SP, Brazil

[2] Univ Sao Paulo USP, Dept Food Engn ZEA FZEA, BR-13635900 Pirassununga, SP, Brazil

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2010年 / 55卷 / 07期

基金：

巴西圣保罗研究基金会;

关键词：

ION-EXCHANGE; PLUS WATER; FATTY-ACIDS; OIL; UNSATURATION; EQUILIBRIUM; RECOVERY;

D O I：

10.1021/je900808z

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Adsorption isotherms for the removal of linoleic acid from aqueous ethanol were measured using a strong anion exchange resin (Amberlyst A26 OH). The data for linoleic acid were compared with previously published results for oleic acid. The equilibrium data were correlated using the Langmuir and Freundlich isotherms. Lower average deviations between experimental and calculated results were obtained with the Langmuir model. The capacity of the resin for adsorbing linoleic acid was evaluated at different water contents in ethanol, 100 w = 0.50 to 15.27, and at 298.15 K. The water content in ethanol does not influence significantly the equilibrium behavior, and the strong anion exchange resin has a good performance in the removal of linoleic acid from the liquid phase.

引用

页码：2563 / 2566

页数：4

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