Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-25T23:53:45.787Z Has data issue: false hasContentIssue false
  • English
  • Français

Preparation and Properties of Pillared Interstratified Illite/Smectite

Published online by Cambridge University Press:  02 April 2024

Johan Sterte
Johan Sterte*
Affiliation:
Department of Engineering Chemistry I, Chalmers University of Technology, 412 96 Göteborg, Sweden
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Pillared, regularly and randomly interstratified illite/smectite (I/S) was prepared by interacting aluminum chlorohydrate with I/S in aqueous dispersion. I/S samples from Kinnekulle, Sweden, ranging in composition from 30–60% smectite layers, were used as starting clays. The pillaring resulted in a separation of the smectite layers in the I/S of about 9 Å, as estimated by X-ray powder diffraction and by nitrogen adsorption studies. Only the smectite layers of the clay were modified by the pillaring procedure. The pillared products had surface areas of 200–260 m2/g and pore volumes of about 0.18 cm3/g. The uptake of Al by the clay and the micropore surface area of the pillared products were proportional to the fraction of smectite layers in the I/S. The thermal and hydrothermal stability of the pillared I/S was similar to that of pillared montmorillonite prepared using the same procedure.

Keywords

Cross-linkingIllite/smectitePillaringSmectiteThermal stabilityX-ray powder diffraction
Type
Research Article
Information
Clays and Clay Minerals , Volume 38 , Issue 6 , December 1990 , pp. 609 - 616
Copyright
Copyright © 1990, The Clay Minerals Society

References

Brusewitz, A. M., 1986 Chemical and physical properties of paleozoic potassium bentonites from Kinnekulle, Sweden Clays & Clay Minerals 34 442 – 454.CrossRefGoogle Scholar
Bystrom, A. M. (1956) Mineralogy of the ordovician ben-tonite beds at Kinnekulle, Sweden: Sver. Geol. Unders. Serie C 540, 62 pp.Google Scholar
Gregg, S. J. and Sing, K. S. W., 1982 Adsorption, Surface Area and Porosity London Academic Press 90 – 100.Google Scholar
Grim, R. E., 1968 Clay Mineralogy New York McGraw-Hill 121 – 122.Google Scholar
Iler, R.K., 1979 The Chemistry of Silica New York Wiley 95 – 98.Google Scholar
Jie, G-J., Ze, M-E. and Zhiquing, Y. (1986) A class of pillared interlayered clay molecular sieve products with regularly interstratified mineral structure: Eur. Pat. Appl. 197,012, 27 pp.Google Scholar
Medlin, J. H., Suhr, N. H. and Bodkin, J. B., 1969 Atomic absorption analysis of silicates employing LiBO2 fusion At. Absorpt. Newsl. 8 25 – 29.Google Scholar
Occelli, M. L., 1983 Catalytic cracking with an interlayered clay. A two-dimensional molecular sieve Ind. Eng. Chem. Prod. Res. Dev. 22 553 – 559.CrossRefGoogle Scholar
Occelli, M. L. and Tindwa, R. M., 1983 Physicochemical properties of montmorillonite interlayered with cationic oxyaluminum pillars Clays & Clay Minerals 31 22 – 28.CrossRefGoogle Scholar
Pinnavaia, T. J., Tzou, M.-S. Landau, S. D. and Raythatha, R. H., 1984 On the pillaring and delamination of smectite clay catalysts by polyoxo cations of aluminum J. Mol. Catal. 27 195 – 212.CrossRefGoogle Scholar
Plee, D., Borg, F., Gatineau, L. and Fripiat, J. J., 1985 High-resolution solid-state 27Al and 29Si nuclear magnetic resonance study of pillared clays J. Amer. Chem. Soc. 107 2362 – 2369.CrossRefGoogle Scholar
Reynolds, R. C. and Hower, J., 1970 The nature of inter-layering in mixed-layer illite-montmorillonites Clays & Clay Minerals 18 25 – 36.CrossRefGoogle Scholar
Sterte, J., 1989 Hydrothermal stability and catalytic cracking performance of some pillared clays Preprints ACS Div. Petr. Chem. 34 489 – 496.Google Scholar
Sterte, J. and Otterstedt, J.-E., 1987 Aluminum-oxide pillared montmorillonite: Effect of hydrothermal treatment of pillaring solution on the product structure Studies in 31 631 – 648.Google Scholar
Sterte, J. and Shabtai, J., 1987 Cross-linked smectites. V. Synthesis and properties of hydroxy silicoaluminum montmorillonites and fluorhectorites Clays & Clay Minerals 35 429 – 439.CrossRefGoogle Scholar
Vaughan, D. E. W., 1988 Recent developments in pillared interlayered clays ACS Symposium Series 368 308 – 323.CrossRefGoogle Scholar
Vaughan, D. E. W., Lussier, R. J. and Magee, J. S. (1979) Pillared interlayered clay materials useful as catalysts and sorbents: U.S. Patent 4,176,090, Nov. 27, 1979, 7 pp.Google Scholar
Vaughan, D. E. W., Lussier, R. J. and Magee, J. S. (1981) Stabilized pillared interlayered clays: U.S. Patent 4,248,739, Feb. 3, 1981, 10 pp.Google Scholar