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

Química Nova

Canselier, Jean Paul¹  Duarte, Lindemberg J. N.¹  Laboratoire de Génie Chimique, France¹ 

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, 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 Scheffé-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 (KC) were determined. The values of E% and KC decrease in the following order: phenol > 1-phenylethanol ~ 2-phenylethanol > benzyl alcohol.

【 授权许可】

Unknown