Extraction of homologous and isomeric organic compounds by two-phase aqueous extraction

Quimica nova

Canselier, Jean Paul¹  Duarte, Lindemberg J. N.¹ 

[1] Laboratoire de Génie Chimique, France

关键词: nonionic surfactant;    cloud-point extraction;    equilibrium partition coefficient.;   

DOI  :  10.1590/S0100-40422005000300012

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In this work, thefeasibility of employing micelle-mediated extraction for selective separationof homologous or isomeric organic compounds is demonstrated. Firstly, the mainparameters controlling extraction performances, such as surfactant concentrationand temperature were varied. A Scheffé-type experimental design was demonstratedas a novel and useful method to characterize the various experimental factors.At each point selected in the two-phase domain and for a given solute, extractionpercentage (E%), concentration ratio, phase volume ratio, and equilibrium partitioncoefficient (KC) were determined. The values of E% and KCdecrease in the following order: phenol > 1-phenylethanol ~ 2-phenylethanol> benzyl alcohol.

【 授权许可】

CC BY