Kinetics and Catalysis

, Volume 49, Issue 6, pp 782–790 | Cite as

Supported titanium-magnesium catalysts for propylene polymerization

  • G. D. BukatovEmail author
  • S. A. Sergeev
  • V. A. Zakharov
  • A. G. Potapov


The results of studies of the synthesis and properties of supported titanium-magnesium catalysts for propylene polymerization performed at the Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, are considered. The composition of the catalysts is TiCl4/D1/MgCl2-AlEt3/D2, where D1 and D2 are stereoregulating donors. With the use of the procedure proposed for the synthesis of titanium-magnesium catalysts, the morphology of catalyst particles depends on the stage of the preparation of a Mg-containing support. The titanium-magnesium catalysts developed afforded polypropylene (PP) in a high yield; this PP was characterized by high isotacticity and excellent morphology. The controllable fragmentation of the catalyst by the polymer is of crucial importance for the retention of the morphology of titanium-magnesium catalyst particles in PP. The fragmentation of catalyst particles to microparticles occurred in the formation of more than 100 g of PP per gram of the catalyst. The surface complexes were studied by DRIFT and MAS NMR spectroscopy and chemical analysis. It was shown that the role of internal donors is to regulate the distribution of TiCl4 on different MgCl2 faces and, thereby, to influence the properties of PP. It was found that chlorine-containing complexes of aluminum compounds were formed on the catalyst surface by the interaction of the catalyst with AlEt3; these complexes can block the major portion of titanium chloride. Data on the number of active sites and the rate constants of polymer chain propagation (k p) at various sites indicate that donor D1 increases the stereospecificity of the catalyst because of an increase in the fraction of highly stereospecific active sites, at which k p is much higher than that at low-stereospecificity active sites. Donor D2 enhances the role of D1. Similar values of k p at sites with the same stereospecificity in titanium-magnesium catalysts and TiCl3 suggest that the role of the support mainly consists in an increase in the dispersity of titanium chloride.


TiCl Catalyst Particle Ethylene Polymerization Internal Donor Boreskov Institute 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Galli, P. and Haylock, J.C., Prog. Polym. Sci., 1991, vol. 16, p. 443.CrossRefGoogle Scholar
  2. 2.
    German Patent 2213086, 1972.Google Scholar
  3. 3.
    Bukatov, G.D., Sergeev, S.A., Zakharov, V.A., Tolstov, G.P., Postoev, A.G., Kuznetsov, V.L., Tikhonov, I.B., Korolev, S.V., and Maier, E.A., Plast. Massy, 2004, no. 5, p. 9.Google Scholar
  4. 4.
    Barbe, P.C., Cecchin, G., and Noristi, L., Adv. Polym. Sci., 1987, vol. 81, p. 1.CrossRefGoogle Scholar
  5. 5.
    Kashiwa, N., Polym. J., 1980, vol. 12, p. 603.CrossRefGoogle Scholar
  6. 6.
    Galli, P., Barbe, P., Guidetti, G., Zannetti, R., Martorana, A., Marigo, A., Bergozza, M., and Fichera, A., Eur. Polym. J., 1983, vol. 19, p. 19.CrossRefGoogle Scholar
  7. 7.
    Zakharov, V.A., Perkovets, D.V., and Bukatov, G.D., Kinet. Katal., 1988, vol. 23, p. 1202.Google Scholar
  8. 8.
    German Patent 2 643 143, 1977.Google Scholar
  9. 9.
    Patent 0 045 977 EP, 1982.Google Scholar
  10. 10.
    Albizzati, E., Giannini, U., Morini, G., Galimberti, M., Barino, L., and Scordamaglia, R., Macromol. Symp., 1995, vol. 89, p. 73.Google Scholar
  11. 11.
    UK Patent 2111066, 1983.Google Scholar
  12. 12.
    US Patent 4298718, 1981.Google Scholar
  13. 13.
    US Patent 4535068, 1985.Google Scholar
  14. 14.
    US Patent 5077357, 1991.Google Scholar
  15. 15.
    Patent 0319227 EP, 1989.Google Scholar
  16. 16.
    RF Patent 2152404, 2000; 2191196, 2002.Google Scholar
  17. 17.
    Boor, J., Jr., Ziegler-Natta Catalysts and Polymerizations, New York: Academic, 1979, p. 180.Google Scholar
  18. 18.
    Bukatov, G.D., Zaikovskii, V.I., Zakharov, V.A., Kryukova, G.N., Fenelonov, V.B., and Zagrafskaya, R.V., Vysokomol. Soedin., Ser. A., 1982, vol. 24, p. 542.Google Scholar
  19. 19.
    Zakharov, V.A., Bukatov, G.D., and Barabanov, A.A., Macromol. Symp., 2004, vol. 213, p. 19.CrossRefGoogle Scholar
  20. 20.
    Bukatov, G.D., Zakharov, V.A., and Barabanov, A.A., Kinet. Katal., 2005, vol. 46, no. 2, p. 180 [Kinet. Catal. (Engl. Transl.), vol. 46, no. 2, p. 166].CrossRefGoogle Scholar
  21. 21.
    Terano, M., Kataoka, T., and Keii, T., in Catalytic Polymerization of Olefins, Keii, T. and Soga, K., Eds., Amsterdam: Kodansha-Elsevier, 1986, p. 407.Google Scholar
  22. 22.
    Sergeev, S.A., Bukatov, G.D., Zakharov, V.A., and Moroz, E.M., Makromol. Chem., 1983, vol. 184, p. 2421.CrossRefGoogle Scholar
  23. 23.
    Sormunen, P., Hjertberg, T., and Iiskola, E., Makromol. Chem., 1990, vol. 191, p. 2663.CrossRefGoogle Scholar
  24. 24.
    Busico, V., Corradini, P., DeMartino, L., Proto, A., Savino, V., and Albizzati, E., Makromol. Chem., 1985, vol. 186, p. 1279.CrossRefGoogle Scholar
  25. 25.
    Potapov, A.G., Bukatov, G.D., and Zakharov, V.A., J. Mol. Catal. A: Chem., 2006, vol. 246, p. 248.CrossRefGoogle Scholar
  26. 26.
    Potapov, A.G., Zakharov, V.A., and Bukatov, G.D., Kinet. Katal., 2007, vol. 48, no. 3, p. 426 [Kinet. Catal. (Engl. Transl.), vol. 48, no. 3, p. 403].CrossRefGoogle Scholar
  27. 27.
    Noristi, L., Barbe, P.C., and Baruzzi, G., Makromol. Chem., 1991, vol. 192, p. 1115.CrossRefGoogle Scholar
  28. 28.
    Potapov, A.G., Terskikh, V.V., Zakharov, V.A., and Bukatov, G.D., J. Mol. Catal. A: Chem., 1999, vol. 145, p. 147.CrossRefGoogle Scholar
  29. 29.
    Potapov, A.G., Terskikh, V.V., Bukatov, G.D., and Zakharov, V.A., J. Mol. Catal. A: Chem., 2000, vol. 158, p. 457.CrossRefGoogle Scholar

Copyright information

© MAIK Nauka 2008

Authors and Affiliations

  • G. D. Bukatov
    • 1
    Email author
  • S. A. Sergeev
    • 1
  • V. A. Zakharov
    • 1
  • A. G. Potapov
    • 1
  1. 1.Boreskov Institute of Catalysis, Siberian BranchRussian Academy of SciencesNovosibirskRussia

Personalised recommendations