Skip to main content
Log in

Surface complexation at hydrous fluorapatite

Dedicated to Paul W. Schindler on his retirement

  • Published:
Aquatic Sciences Aims and scope Submit manuscript

Abstract

The adsorption of H+, OH and ARS (Alizarin Red S) onto hydrous fluorapatite surfaces and Ca2+—ARS complexation in solution were studied by means of combined potentiometric and spectrophotometric titrations, as well as zeta potential and FT-IR measurements. Corresponding equilibrium constants of surface and solution reactions are determined. The application in flotation processes is discussed.

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

  • Baldauf, H. and H. Schubert, 1980. Correlations between structure and adsorption for organic depressants in flotation. In: P. Somasundaran (ed.), Fine Particles Processing, AIME, N.Y. 1:767–786.

    Google Scholar 

  • Brunauer, S., P.H. Emmet and E. Teller, 1938. Adsorption of gases in multimolecular layers. J. Am. Chem. Soc. 60:309–319.

    Google Scholar 

  • Eriksson, G.A., 1979. An Algorithm for the computation of aqueous multicomponent, multiphase equilibria. Anal. Chim. Acta 112:375–383.

    Google Scholar 

  • Friedman, G.M., 1959. Identification of carbonate minerals by staining methods. J. Sediment. Petrol., 29: 87–97.

    Google Scholar 

  • Govil, P.K. and S.K.J. Banerji, 1973. Thermodynamics of bivalent metal chelates of sodium, alizarin sulfonate. Journal of Inorg. Nucl. Chem. 35:3932–3935.

    Google Scholar 

  • Ingri N. and L.G. Sillen, 1964. High-speed computer as a supplement to graphical methods IV. An algol version of LETAGROPVRID. Ark. Kemi 23:97–121.

    Google Scholar 

  • Mattson, S., E.K. Andersson, R.B. Miller and K. Vahtras, 1951. Kungl. Lantbruks hög skolans Annaler 18:128–153.

    Google Scholar 

  • Michael, M., 1989. Phosphate rock, metals & minerals annual review. Journal of Industrial Minerals C: 117–119.

    Google Scholar 

  • Schindler, P.W. and H.R. Kamber, 1968. Die Acidität von Silanolgruppen, Helv. Chim. Acta 51: 1781–1786.

    Google Scholar 

  • Schindler, P.W. and Gamsjäger, 1972. Acid-base reactions of the TiO2 (anatase)-water interface and the point of zero charge of TiO2 suspensions. Kolloid Z. Z. Polymere. 150:759–763.

    Google Scholar 

  • Stumm, W., C.P. Huang and S.R. Jenkins, 1970. Specific chemical interactions affecting the stability of dispersed systems. Croat. Chem. Acta 42:223–244.

    Google Scholar 

  • Smith, R.M. and A.E. Martell, 1976. Critical Stability Constants, Plenum, N.Y. 4:40–73.

    Google Scholar 

  • Socrates, G., 1980. Infrared Characteristic Group Frequencies, J. Wiley and Sons, N.Y.

    Google Scholar 

  • Westall, J.C., 1982a, FITEQL: A computer program for determination of chemical eqilibrium constants from experimental data. Version 1.2. Report 82-01. Department of Chemistry, Oregon State University, Corvallis, OR, USA.

    Google Scholar 

  • Westall, J.C., 1982b. FITEQL: A computer program for determination of chemical eqilibrium constants from experimental data. Version 2.0. Report 82-02. Department of Chemistry, Oregon State University, Corvallis, OR, USA.

    Google Scholar 

  • Wu, L. and W. Forsling, 1992. Potentiometric and spectrophotometric study of calcium and alizarin red s complexation. Acta Chemica Scandinavica. 46:418–422.

    Google Scholar 

  • Wu, L., W. Forsling and P.W. Schindler, 1991. Surface complexation of calcium minerals in aqueous solution. 1. Surface protonation at fluorapatite-water interfaces. J. Colloid Interface Sci. 147: 178–185.

    Google Scholar 

  • Wu, L. and W. Forsling, 1993. Surface complexation of calcium minerals in aqueous solution, 2. The complexation of alizarin red s at fluorapatite-water interfaces. Accepted for publication in Engineering Foundation Conference about Beneficiation of Phosphate: “Theory and Practice”, Florida, USA.

  • Wu, L., 1992. Acid-Base and Complexation Properties of Hydrous Fluorapatite Surfaces, Licentiate thesis, Luleå, Sweden.

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Forsling, W., Wu, L. Surface complexation at hydrous fluorapatite. Aquatic Science 55, 336–346 (1993). https://doi.org/10.1007/BF00877278

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00877278

Key words

Navigation