Colloid Journal

, Volume 66, Issue 6, pp 705–708 | Cite as

Adsorption of fatty acids from solutions in organic solvents on the surface of finely dispersed magnetite: 2. Heats of oleic, linoleic, and linolenic acid adsorption from carbon tetrachloride and hexane

  • V. V. Korolev
  • A. V. Blinov
  • A. G. Ramazanova


Differential and integral heats of oleic, linoleic, and linolenic acid adsorption on the surface of finely dispersed magnetite from solutions in carbon tetrachloride and hexane are measured by the calorimetric method. The thermodynamic parameters of the adsorption for the systems under examination are calculated from the obtained experimental data. It is discovered that, at low concentrations, the volume filling of micropores in the particle aggregates of the adsorbent occurs with the formation of ordered adsorbate structures in the pores. At high concentrations, the fatty acids are adsorbed in mesopores and on the outer surface of the adsorbent. It is shown that, at high concentrations, the key contributions to the integral heat of adsorption are made by the endothermic processes of desolvation of adsorbates and the adsorbent surface, as well as by the competitive adsorption of solvent and fatty acid molecules on the active sites of the adsorbent surface.


Polymer Hexane Magnetite Linolenic Acid Organic Solvent 
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  1. 1.
    Rouquerol, J., Rouquerol, F., and Denoyel, R., Abstracts of Papers, 13 IUPAC Conf. on Chemical Thermodynamics, 1994, Clermont-Ferrand, p. 17.Google Scholar
  2. 2.
    Kopylov, V.B. 19991 Vserossiiskaya konferentsiya “Khimiya poverkhnosti i nanotekhnolog”St. Petersb. Gos. Univ.St. Petersburg30(1 All-Russia Conf. “Surface Chemistry and a Nanoengineer”)Google Scholar
  3. 3.
    Nechaev, E.A. 1989Khemosorbtsiya organicheskikh veshchestv na oksidakh i metallakhVyshcha ShkolaKharkov(Chemisorption of Organic Substances on Oxides and Metals)Google Scholar
  4. 4.
    Nechaev, E.A., Zvonareva, G.V. 1980Kolloidn. Zh.42511Google Scholar
  5. 5.
    Tarasevich, Yu.P., Polyakov, V.E., Polyakova, I.G. 1985Zh. Fiz. Khim.591685Google Scholar
  6. 6.
    Cases, J.M., Villieras, F. 1992Langmuir81251Google Scholar
  7. 7.
    Rudzinski, W., Charmas, R. 1991Langmuir7354Google Scholar
  8. 8.
    Ulitin, M.V., Trunov, A.A., Lefedova, O.V. 1998Zh. Fiz. Khim.722207Google Scholar
  9. 9.
    Ulitin, M.V., Trunov, A.A., Lefedova, O.V. 1998Zh. Fiz. Khim.722211Google Scholar
  10. 10.
    Barbov, A.V., Ulitin, M.V. 1997Zh. Fiz. Khim.712237Google Scholar
  11. 11.
    Husbands, D.I., Tallis, W., Waldsax, J.C.R. 1971Powder Technol.531Google Scholar
  12. 12.
    Sugihara, H., Taketomi, J., Uehori, T. 1980J. Chem. Soc., Faraday Trans. 176545Google Scholar
  13. 13.
    Buckland, A.D., Rochester, C.H., Totham, S.A. 1980J. Chem. Soc., Faraday Trans. 176302Google Scholar
  14. 14.
    Korolev, V.V., Ramazanova, A.G., Yashkova, V.I.,  et al. 2004Kolloidn. Zh.66700Google Scholar
  15. 15.
    Lebedeva, N.Sh., Mikhailovskii, K.V., V’yugin, A.I. 2001Zh. Fiz. Khim.751140Google Scholar
  16. 16.
    Korolev, V.V., Ramazanova, A.G., and Blinov, A.V., Izv. Ross. Akad. Nauk, Ser. Khim., 2002, no. 11, p. 1888.Google Scholar
  17. 17.
    Krestov, G.A. 1984Termodinamika ionnykh protsessov v rastvorakhKhimiyaLeningrad75132(Thermodynamics of Ionic Processes in Solutions)Google Scholar
  18. 18.
    Frolov, Yu.G. 1988Kurs kolloidnoi khimiiKhimiyaMoscow(Textbook of Colloid Chemistry)Google Scholar

Copyright information

© MAIK “Nauka/Interperiodica” 2004

Authors and Affiliations

  • V. V. Korolev
    • 1
  • A. V. Blinov
    • 1
  • A. G. Ramazanova
    • 1
  1. 1.Institute of Chemistry of SolutionsRussian Academy of SciencesIvanovoRussia

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