Adsorption on a series of primary n-alkylammonium bentonites
was studied by simultaneous gravimetric determination of the adsorption
isotherm and X-ray diffraction measurement of the c-spacing.
All adsorbates gave typical Type II isotherms. BET plots
were linear in the region P/P[subscript o] = 0.10 - 0.35 and v[subscript m] values were...
Heats of immersion were obtained for four different organophilic
clay complexes in a series of normal alcohol-heptane mixtures
with alcohols of increasing chain length. The immersion calorimeter
employed was the Dewar type with a sensitivity of approximately
5 x 10⁻⁵°C.
Gel volumes were determined for two of the clay complexes...
The selective adsorption from a series of binary solutions on an
organoclay complex has been studied in relation to the gelling ability
of this organoclay. Adsorption isotherms were obtained for a series
of polar organic solvents in toluene. The isotherms were of the usual
"S" or "U" type depending upon...
An apparatus and procedure are described for investigating
selective adsorption from a binary vapor mixture as a function of
pressure. The technique measures both total mass adsorption and
adsorbed-phase composition.
Development of the method is outlined. Possible sources of
error are analyzed and are found to be either nonexistent or...