Gas chromatographic characterization of the adsorption properties of the natural adsorbent CACMM2

被引：24

作者：

Elizalde-González, MP ^{[1
]}

Ruíz-Palma, R ^{[1
]}

机构：

[1] Univ Autonoma Puebla, Ctr Quim, Inst Ciencias, Puebla 72571, Mexico

来源：

JOURNAL OF CHROMATOGRAPHY A | 1999年 / 845卷 / 1-2期

关键词：

CACMM2; adsorbent; adsorbents; natural adsorbents; thermodynamic parameters; adsorption isotherms; stationary phases; GC; alkanes; benzene; cyclohexane;

D O I：

10.1016/S0021-9673(99)00245-9

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The adsorption behavior of rt-pentane, n-hexane, n-heptane, benzene and cyclohexane on the natural adsorbent CACMM2 at 60 degrees C was studied by use of gas chromatography. The variation of the differential enthalpy of adsorption and the entropic factor were determined and are similar than those obtained on such non-specific adsorbents as dehydroxylated silica. Retention of alkanes depends mainly on the boiling point. The separation of the mixtures pentane-benzene, pentane-cyclohexane, hexane-benzene, hexane-cyclohexane, heptane-benzene and heptane-cyclohexane is achieved in 1 min. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：373 / 379

页数：7

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