Sorption and immersional wetting on clay minerals having modified surface: II. Interlamellar sorption and wetting on organic montmorillonites

Adsorption of methanol-benzene mixtures and heats of immersion have been investigated on the organic derivatives of montmorillonite. The surface of the mineral was modified by n-alkyl pyridinium and dimethyldihexadecyl ammonium ions. In the case of completely exchanged samples the adsorption capacit...

Full description

Saved in:
Bibliographic Details
Published inJournal of colloid and interface science Vol. 109; no. 2; pp. 376 - 384
Main Authors DEKANY, I, SZANTO, F, GYORGY NAGY, L
Format Journal Article
LanguageEnglish
Published San Diego, CA Elsevier Inc 1986
Elsevier
Subjects
Chemistry
Exact sciences and technology
General and physical chemistry
Solid-liquid interface
Surface physical chemistry
Clay
Liquid solid interface
Hydrocarbon
Montmorillonite
Liquid solid adsorption
Aliphatic compound
Organic adsorbate
Coadsorption
Saturated compound
Cationic surfactant
Alcohol
Inorganic adsorbent
Phyllosilicate
Experimental study
Mixture
Quaternary ammonium compound
Benzene
Thermodynamic properties
Modified material
Methanol
Online AccessGet full text

Cover

More Information
Summary:Adsorption of methanol-benzene mixtures and heats of immersion have been investigated on the organic derivatives of montmorillonite. The surface of the mineral was modified by n-alkyl pyridinium and dimethyldihexadecyl ammonium ions. In the case of completely exchanged samples the adsorption capacity volumes agree with the interlamellar volumes calculated from X-ray diffraction data rather well. The organophilicity is characterized by the proportion of the nonpolar/polar surfaces. The specific enthalpies of immersion have been measured in methanol, benzene, and their mixtures. The immersion shows endothermic-exothermic or endothermic heat effects.
ISSN:0021-9797
1095-7103
DOI:10.1016/0021-9797(86)90316-4