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

被引：7

作者：

Duarte, LJN ^{[1
]}

Canselier, JP ^{[1
]}

机构：

[1] UPS, INPT, ENSIACET, CNRS,UMR 5503,Lab Genie Chim, F-31106 Toulouse, France

来源：

QUIMICA NOVA | 2005年 / 28卷 / 03期

关键词：

nonionic surfactant; cloud-point extraction; equilibrium partition coefficient;

D O I：

10.1590/S0100-40422005000300012

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

EXTRACTION OF HOMOLOGOUS AND ISOMERIC ORGANIC COMPOUNDS BY TWO-PHASE AQUEOUS EXTRACTION. In this work, the feasibility of employing micelle-mediated extraction for selective separation of homologous or isomeric organic compounds is demonstrated. Firstly, the main parameters controlling extraction performances, such as surfactant concentration and temperature were varied. A Scheffe-type experimental design was demonstrated as 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, extraction percentage (E%), concentration ratio, phase volume ratio, and equilibrium partition coefficient (K-C) were determined. The values of E% and K-C, decrease in the following order: phenol > 1-phenylethanol - 2-phenylethanol > benzyl alcohol.

引用

页码：426 / 432

页数：7

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