Skip to main content
Log in

Acid/base sites on mineral filler surfaces determined by the adsorption of probe molecules

  • Published:
Mining, Metallurgy & Exploration Aims and scope Submit manuscript

Abstract

The surface chemical sites on several fillers (quartz, feldspar, calcite and granite) were studied by the adsorption of well defined acid and basic probe molecules (benzoic acid, benzyl alcohol, ethyl benzoate, pyridine and benzyl amine) from cyclohexane.

The results provided a wide variation of adsorption data, emphasizing the extensive range of site heterogeneity on the filler surfaces. In addition, it was shown that the acidic probes were strongly adsorbed on all of the minerals, thus indicating that the basic surface sites dominate the acidic ones.

Also, through FTIR studies with vapor-phase probes adsorbed on orthoclase, it was possible to identify the nature of specific sites and the type of bonding occurring between the filler surface and the probe molecule.

These types of surface analytical techniques could give useful information for predicting the adsorption functional groups on dispersants, dyes, thickeners, etc. and could lead to enhanced interfacial bonding between the filler and the matrix.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Burneau, A., and Barrès, O., 1990, “Comparative study of the surface hydroxyl groups of fumed and precipitated silica by IR spectroscopy of the interacted water,” Langmuir, Vol. 6, p. 1364.

    Article  Google Scholar 

  • Cardona-Martinez, J.A., and Dumesic, J., 1990, “Acid strength of silica — Alumina and silica studies by microcalometric measurements of pyridine adsorption,” Journal of Catalyst, Vol. 125, p. 427.

    Article  Google Scholar 

  • Derylo-Marczewska, A., and Jaroniec, M., 1987, Surface and Colloid Science, Matijevic, ed., Vol. 14, Plenum Press, New York, p. 301.

    Chapter  Google Scholar 

  • Eltekov, Y.A., Khopina, V.V., and Kiselev, A.V., 1972, Journal of Chemical Society Faraday Transactions I, Vol. 68, pp. 889–895.

    Article  Google Scholar 

  • Fowkes, F.M., 1967, “Attractive forces at interfaces,” Wetting, Monograph No. 25, Society of the Chemical Industry, London, pp. 3–30.

    Google Scholar 

  • Gutmann, V., 1978, The Donor Acceptor Approach to Molecular Interactions, Plenum Press, New York.

    Book  Google Scholar 

  • Hertl, W., 1988, “Surface chemical properties of zinc sulphide,” Langmuir, Vol. 4, p. 594.

    Article  Google Scholar 

  • Iler, R., 1979, The Chemistry of Silica, Wiley Interscience.

  • Kunath, D., and Schultz, D., 1978, “Correlation between IR adsorption of surface hydroxyl groups on aerosol and specific adsorption enthalpies,” Journal of Colloid Interface Science, Vol. 66, No. 3, p. 379.

    Article  Google Scholar 

  • Larsson, A., and Stenius, P., 1987, Nordic Pulp and Paper Res. Journal, Vol. 3, p. 87.

    Article  Google Scholar 

  • Neagle, W., and Rochester, C.H., 1990, “IR studies of the adsorption of water and ammonia on CaCO3,” Journal of Chemical Society Faraday Transactions I, Vol. 86, pp. 181–183.

    Article  Google Scholar 

  • Parkyns, N.D., and Bradshaw, D.I., 1987, “Species adsorbed at surfaces,” Laboratory Methods in Vibration Spectroscopy, H.A. Willis et al., eds., John Wiley and Sons, Ch. 16.

  • Pugh, R., 1990, “Surface acidity/basicity of α-SiC, ZrO2, α-Al2O3 and Y2O3 ceramic powders,” Ceramic Transactions, Vol. 12, pp. 375–382.

    Google Scholar 

  • Rebenstorf, B., and Larsson, R., 1979, “CO complexes on Mn(II), Fe(II), Co(II),” Z. Anorg. allg. Che., Vol. 453, pp. 127–138.

    Article  Google Scholar 

  • Riddle, F.L., and Fowkes, F.M., 1990, Journal of the American Chemical Society, Vol. 112, No. 9, pp. 3259–3264.

    Article  Google Scholar 

  • Sokoll, R., Hobert, H., and Schmuck, I., 1986, “Thermal desorption and IR studies of butylamine adsorbed on SiO2, Al2O3 and CaO,” Journal of the Chemical Society Faraday Transactions I, Vol. 82, pp. 3391.

    Article  Google Scholar 

  • Thompson, M.M., and Palmer, R.A., 1988, “FTIR and photoacoustic spectroscopy characterization of S-O species resulting from the reaction of SO2 with CaCO3,” Applied Spectroscopy, Vol. 42, No. 6, p. 845.

    Article  Google Scholar 

  • Urban, M.W., and Koenig, J.L., 1986, “Determination of the orientation of adsorbed pyridine and γ-MPS on alumina surface by photoacoustic FTIR,” Applied Spectroscopy, Vol. 40, No. 6, p. 851.

    Article  Google Scholar 

  • Weast, R.C., ed., 1981, Handbook of Chemistry and Physics, 60th ed., CRC Press, Florida.

    Google Scholar 

  • White, R.L., and Nair, A., 1990, “DRIFT characterization of silica dehydration,” Applied Spectroscopy, Vol. 44, No. 1, p. 69.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

SME preprint 92-162, SME Annual Meeting, Feb. 24–27, 1992, Phoenix, AZ. M&MP paper 91-658.

Discussion of this paper must be submitted, in duplicate, prior to Nov. 30, 1992.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Pugh, R.J. Acid/base sites on mineral filler surfaces determined by the adsorption of probe molecules. Mining, Metallurgy & Exploration 9, 151–157 (1992). https://doi.org/10.1007/BF03402988

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03402988

Navigation