EQUILIBRIUM STUDY OF SINGLE-SOLUTE ADSORPTION OF ANIONIC SURFACTANTS WITH POLYMERIC XAD RESINS

被引：185

作者：

GARCIADELGADO, RA

COTORUELOMINGUEZ, LM

RODRIGUEZ, JJ

机构：

[1] Departamento De Ingenieria Quimica, Universidad De Malaga, 29071, Malaga

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1992年 / 27卷 / 07期

关键词：

D O I：

10.1080/01496399208019736

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Equilibrium data for the adsorption of sodium lauryl sulfate (SLS) and sodium dodecylbenzene sulfonate (SDBS) from aqueous solutions by Amberlite XAD-4 and XAD-7 polymeric resins at temperatures in the 10-40-degrees-C range have been obtained. The specific surface area of the resins plays a major role in adsorption, and thus the best results have been obtained with XAD-4 resin. A higher adsorption of SDBS over SLS was also observed. Several adsorption isotherm models have been used to fit the experimental data. The best results have been obtained with the Redlich-Peterson and Langmuir-Freundlich equations. Estimations of the isosteric heat of adsorption, free energy, and entropy of adsorption are also reported.

引用

页码：975 / 987

页数：13

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