Effects of surface heterogeneity in adsorption from binary liquid mixtures--2. Adsorption from nonideal bulk solutions
A systematic study was conducted of the adsorption from a nonideal binary liquid phase onto an ideal adsorbed phase on a heterogeneous solid. The condensation approximation method was used to derive an equation for the distribution function of the equilibrium constant of the phase exchange reaction. The method was used in numerical studies of the effect of adsorbed layer thickness and type of lattice of regular and non-athermal solutions on the distribution functions of benzene/carbon tetrachloride on aerosil, benzene/nitrobenzene on silica gel and alumina, and benzene/n-heptane on silica gel, for which adsorption data were available. An equation was also developed which described adsorption from binary solutions onto heterogeneous surfaces and permitted model studies which showed that surface heterogeneity has a greater influence than bulk-phase nonideality on the type, range, and magnitude of adsorption.
- Research Organization:
- Univ. of Lublin
- OSTI ID:
- 6950122
- Journal Information:
- J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 69:2; ISSN JCISA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADSORBENTS
ADSORPTION
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
BENZENE
BINARY MIXTURES
CALCULATION METHODS
CARBON TETRACHLORIDE
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHLORINATED ALIPHATIC HYDROCARBONS
DISPERSIONS
EQUATIONS
HALOGENATED ALIPHATIC HYDROCARBONS
HEPTANE
HETEROGENEOUS EFFECTS
HYDROCARBONS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MATHEMATICAL MODELS
MATHEMATICS
MIXTURES
NITRO COMPOUNDS
NITROBENZENE
NUMERICAL ANALYSIS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
REACTION KINETICS
SILICA GEL
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES