Summary
-
1.
A study has been made of the adsorption isotherms of nitrogen at −195° and of water at 20° over wide ranges of equilibrium relative pressures on dehydrated zeolite type X in the sodium and calcium ion exchange forms.
-
2.
An analysis of the experimental data has made it possible to show that they are in good agreement with a number of the basic consequences of the potential theory of adsorption: The adsorption isotherm equation is applicable to adsorbents of the first structural type, the maximum volumes of the adsorptive space are the same as those calculated theoretically from x-ray data for the volumes of the zeolite voids, and finally the assumption of the theory is correct that the density of materials in the adsorbed state is practically no different from the densities of the corresponding volume liquid phases.
-
3.
A discussion is given of the role played by the electrostatic components of the adsorptive interaction. In the case of water they show up in values of the affine coefficients substantially higher than those calculated from dispersion interaction alone.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
R. M. Barrer, W. M. Meier, Trans. Faraday Soc.54, 1074 (1958).
R. M. Barrer, F. M. Bultitude, J. W. Sutherland, Trans. Farraday Soc.53, 1111 (1957).
L. Broussard, D. P. Shoemaker, J. Amer. Chem. Soc.82, 1041 (1960).
M. M. Dubinin, Izv, AN SSSR, Otd. khim. n. 1961, 1183.
M. M. Dubinin, E. G. Zhukovskaya and K. O. Murdmaa, Izv. AN SSSR, Otd. khim. n. 1962, No. 5.
R. M. Barrer, W. I. Stuart, Proc. Roy. Soc.A249, 464 (1959).
R. M. Barrer, G. C. Bratt, J. Phys. Chem. Solids12, 146 (1959).
R. M. Barrer, G. C. Bratt, J. Phys. Chem. Solids12, 154 (1959).
M. M. Dubinin, E. D. Zaverina and L. V. Radushkevich, Zh. fiz. khimii.21, 1351 (1947).
M. M. Dubinin, E. D. Zaverina, Zh. fiz. khimii,23, 1129 (1949).
L. V. Radushkevich, Zh. fiz. khimii,23, 1410 (1949).
K. M. Nikolaev and M. M. Dubinin, Izv. AN SSSR, Otd. khim. n., 1958, 1165.
M. M. Dubinin, Chem. Revs.60, 235 (1960).
B. P. Bergin, M. M. Dubinin, E. G. Zhukovskaya and V. V. Serpinskii, Dokl. AN SSSR,131, 865 (1960).
M. M. Dubinin and E. G. Zhukovskaya, Izv. AN SSSR, Otd. khim. n. 1958, 535.
M. M. Dubinin, E. D. Zaverina and D. P. Timofeev, Izv. AN SSSR, Otd. khim. n., 1957, 670.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dubinin, M.M., Zhukovskaya, E.G. & Murdmaa, K.O. Study of the adsorptive properties and secondary porous structure of adsorbents having a molecular-sieve action. Russ Chem Bull 11, 896–903 (1962). https://doi.org/10.1007/BF00905201
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00905201