Adsorption from Binary Liquid Mixtures

The equation for ideal adsorption has been widely applied in the form  

Siskova and E. Erdos, Collect. Czech. Chem. Commun., 1960, 25, 1729, 2599. 

Nagy and G. Schay, Acta Chim. Acad. Sci. Hung., 1963, 39, 363. 

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Szekrenyesy, Period. Polytech., Univ. Budapest, 1962, 6, 91. 

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The discussion so far has been confined to systems in which the solute species are dilute, so that adsorption was not accompanied by any significant change in the activity of the solvent. In the case of adsorption from binary liquid mixtures, where the complete range of concentration, from pure liquid A to pure liquid B, is available, a more elaborate analysis is needed. The terms solute and solvent are no longer meaningful, but it is nonetheless convenient to cast the equations around one of the components, arbitrarily designated here as component 2. 

Fig. XI-11. Relation of adsorption from binary liquid mixtures to the separate vapor pressure adsorption isotherms, system ethanol-benzene-charcoal (n) separate mixed-vapor isotherms (b) calculated and observed adsorption from liquid mixtures. (From Ref. 143.)...

G. Foty, C. de Reyff, and E. S. Kovats, Method of chromatographic determination of excess adsorption from binary liquid mixtures, Langmuir. 6 (1990), 759-766. 

Influence of the porous structure of activated carbon on adsorption from binary liquid mixtures... 

Sircar, S. Adsorption from binary liquid mixtures of unequal adsorbate sizes on heterogeneous adsorbents. Surf. Sci. 1984, 148, 489 98. 

Let us notice that the expressions (30) and (31) are useful for describing adsorption from binary liquid mixtures exhibiting both limited (aj < 1 and a > 0) and unlimited... 

ADSORPTION FROM BINARY LIQUID MIXTURES ON CHROMATOGRAPHIC SILICA GEL. 

PodkoScielny et al. [80] and Kano et al. [81] extended the theories used for gas adsorption to adsorption from binary liquid mixtures. In particular, the former authors [80] investigated the adsorption of aliphatic alcohols, benzene and aliphatic ketones on silica gels having A = 2.61 and 2.69, whereas the latter authors [81] studied the adsorption of several organic compounds from water on activated carbons having high A values (A 3). 

W. Rudzinski, J. Zajac, I. Dekany, F. Szanto, Heats of immersion in monolayer adsorption from binary liquid mixtures on heterogeneous solid surfaces equations for excess isotherms and heats of immersion corresponding to condensation approximation and Rudzinski-Jagiello approach. J. Colloid Interface Sci. 112(2), 473-483 (1986). doi 10.1016/0021-9797(86)90115-3... 

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