Skip to main content
SpringerLink
Log in

Physicochemical Processes during Precipitation of Silica from Geothermal Brine

  • Published:
Theoretical Foundations of Chemical Engineering Aims and scope Submit manuscript

Abstract

Physicochemical properties of the silica–geothermal brine colloidal system are investigated. The reaction order and the rate constants for silica polymerization are determined, the radius of colloidal particles is measured, and their charge is estimated. The mechanism of coagulation and precipitation of colloidal silica by metal cations is experimentally studied. On the basis of the results obtained, a basic process to recover silica from the geothermal heat-transfer medium is designed.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

REFERENCES

  1. Kutepov, A.M., Latkin, A.S., and Potapov, V.V., Motion of and Mass Transfer into a Liquid Droplet in the Swirling Flow of the Geothermal Medium, Teor. Osn. Khim. Tekhnol., 2000, vol. 34, no. 2, p. 152.

    Google Scholar 

  2. Potapov, V.V., Karpov, G.A., and Podverbnyi, V.M., Removal of Silica from Geothermal Brine, Teor. Osn. Khim. Tekhnol., 2002, vol. 36, no. 6, p. 644.

    Google Scholar 

  3. Potapov, V.V., Electrochemical Treatment of Hydrothermal Heat-Transfer Medium before Back Pumping, Teploenergetika, 2002, no. 1, p. 38.

  4. Potapov, V.V. and Kashpura, V.N., Application of Colloidal Geothermal Silica for Sodium Silicate Production, Khim. Tekhnol., 2002, no. 4, p. 7.

  5. Marshall, W.L., Amorphous Silica Solubilities: I. Behavior in Aqueous Sodium Nitrate Solutions: 25-300°C 0-6 Molal, Geochim. Cosmochim. ActaPeople's/E1980}, vol. 44, p.?907.

  6. Iler, R.K., The Chemistry of Silica: Solubility, Polymerization, Colloid and Surface Properties, and Biochemistry of Silica, New York: Wiley, 1979. Translated under the title Khimiya kremnezema, Moscow: Mir, 1982.

    Google Scholar 

  7. Rothbaum, H.P. and Rohde, A.G., Kinetics of Silica Polymerization and Deposition from Dilute Solutions between 5 and 180°C, J. Colloid Interface Sci., 1979, vol. 71, no. 3, p. 533.

    Google Scholar 

  8. Fleming, B.A., Kinetics of Reaction between Silicic Acid and Amorphous Silica Surfaces in NaCl Solutions, J. Colloid Interface Sci., 1986, vol. 110, no. 1, p. 40.

    Google Scholar 

  9. Babenkov, E.D., Ochistka vody koagulyantami(Water Treatment with Coagulants)}, Moscow: Nauka, 1977.

    Google Scholar 

  10. Iler, R.K., Coagulation of Colloidal Silica by Calcium Ions, Mechanism, and Effect of Particle Size, J. Colloid Interface Sci., 1975, vol. 53, no. 3, p. 476.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Geotechnological Research Center, Far East Division, Russian Academy of Sciences, Severo-Vostochnoe sh. 30, Petropavlovsk-Kamchatskii, 683002, Russia

    V. V. Potapov

Authors
  1. V. V. Potapov
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Potapov, V.V. Physicochemical Processes during Precipitation of Silica from Geothermal Brine. Theoretical Foundations of Chemical Engineering 38, 72–80 (2004). https://doi.org/10.1023/B:TFCE.0000014392.19065.77

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/B:TFCE.0000014392.19065.77

Keywords

Search

Navigation