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Application of magnetite sols in environmental technology

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Book cover Surfactants and Colloids in the Environment

Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 95))

Abstract

Theoretically and experimentally, it could be shown that 10 nm magnetite particles can be stabilized in aqueous carriers by electrostatic and/or Born repulsion, also under action of external magnetic fields.

The bare or monolayer and bilayer covered particles and be used in environmental protection to eliminate dangerous components from waste water, polluted air and soil by adsorption, and extraction or heterocoagulation in combination with magnetophoresis of the modified magnetite particles in presence of an external magnetic field.

A mixture of water and the ammonium salt of a perfluoropolyether (PFPE)-acid was used to determine the adsorption capacity of stable dispersed, positively charged magnetite particles. Under the condition of monolayer formation the PFPE-salt can be nearly totally eliminated from the water carrier. At bilayer formation the adsorption capacity is increased two fold, but there is an equilibrium between the adsorbed and in the carrier solved PFPE salt.

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References

  1. Rosensweig RE (1979) Adv in Electronics and Electron Phys 48:103–199

    Google Scholar 

  2. Prospect of Ferrofluidics Corp Nashua, NH, USA

    Google Scholar 

  3. Shimoiizaka J, Nakatsuka K, Fujita T, Kounosu A (1980) IEEE Trans Mag, MAG-16:368–371

    Article  CAS  Google Scholar 

  4. Kaiser R (1974) US patent 3805449

    Google Scholar 

  5. Kaiser R (1971) US patent 3796660

    Google Scholar 

  6. Mikami TJ (1992) Dispersion Sci Technol 13(2):145–168

    Article  CAS  Google Scholar 

  7. Silver GL (1983) US patent, Appl Nr 174064

    Google Scholar 

  8. Chen W-J, Tarng MR (1991) IEEE Trans Mag 27(6):4642–4644

    Article  CAS  Google Scholar 

  9. Brozek M, Nowakowski K, Oruba E, Pilch W (1989) Fizykochem Probl Mineralurgii 21:181–189; CA 112 (10) 8254w

    CAS  Google Scholar 

  10. Gonel DI, Liberti PA (1992) US patent 5108933

    Google Scholar 

  11. Verwey EJ, Overbek JThG (1948) “Theory of the Stability of Hydrophobic Colloids” Elsevier Publ Comp Amsterdam

    Google Scholar 

  12. Mc Cartney-Levine (1969) J Coll Interf Sci 30:345

    Article  Google Scholar 

  13. Hamaker HC (1937) Physica, Utrecht 4:1058

    Article  CAS  Google Scholar 

  14. Kneller E (1966) In: “Handbuch der Physik” 18(2), Sprigner, Berlin, p 475

    Google Scholar 

  15. Vold MJ (1961) J Colloid Sci 16:1

    Article  CAS  Google Scholar 

  16. Feke, Prabka, Mann (1984) J Phys Chem 88:5735

    Article  CAS  Google Scholar 

  17. Strenge K (1993) software program “Interact, Interads”, private communication

    Google Scholar 

  18. Scholtens PC (1978) In: Berkowsky B “Thermomechanics of Magnetic Fluids” P 1, Hemisphere Publ Co, Washington DC

    Google Scholar 

  19. Khalafalla SE, Reimers GW, Roll SA (1984) US patent 4208294

    Google Scholar 

  20. Khalafalla SE, Reimers GW (1972) US patent 3764540

    Google Scholar 

  21. Massart R (1981) IEEE Trans Mag MAG-17 2:1247–1248

    Article  Google Scholar 

  22. Buske N, Götze T (1981) DD patent 235791

    Google Scholar 

  23. Günther D (1993) DE patents, Appl Nr P 4325 386.5 and P 4327 826.4

    Google Scholar 

  24. Günther D, Buske N (1994) DE patent, Appl Nr P 4407864.1

    Google Scholar 

Download references

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Authors and Affiliations

  1. Fraunhofer-Institute for Production Systems and Design Technology Branch House 1.1, Rudower Chaussee 5, 12484, Berlin, FRG

    N. Buske

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  1. N. Buske
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Editor information

M. J. Schwuger F. H. Haegel

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© 1994 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Buske, N. (1994). Application of magnetite sols in environmental technology. In: Schwuger, M.J., Haegel, F.H. (eds) Surfactants and Colloids in the Environment. Progress in Colloid & Polymer Science, vol 95. Steinkopff. https://doi.org/10.1007/BFb0115720

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  • DOI: https://doi.org/10.1007/BFb0115720

  • Published:

  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-0994-8

  • Online ISBN: 978-3-7985-1668-7

  • eBook Packages: Springer Book Archive

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