Evaluation of mass transfer rate during Ziegler‐Natta propylene polymerization

Wiley - Tập 11 Số 8 - Trang 1881-1888 - 1973
Tominaga Keii1, Yoshiharu Doi1, Hiromu Kobayashi1
1Department of Chemical Engineering Tokyo Institute of Technology Meguro‐ku Tokyo Japan

Tóm tắt

AbstractMass transfer which affects the rate of propylene polymerization with titanium trichloride–triethylaluminum, has been evaluated by use of a new method developed for this heterogeneous reaction. The polymerization was carried out with the usual flask reactor equipped with a paddle stirrer; the rate of gas absorption into the polymerization slurry was proportional to stirring speed and the reciprocal of the total amount of polymers produced. It has been confirmed that the polymerization rate separated from the absorption rate is purely kinetic (propagation), and an effective physical process, such as monomer transfer through a polymer film covering the catalyst surface, no longer exists.

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Tài liệu tham khảo

10.1016/S0360-0564(08)60416-2

10.1139/v63-032

T.Keii M.Taira andT.Takagi paper presented at the Third Symposium on Reaction Engineering Sapporo Japan 1963.

10.1002/macp.1965.020830107

G.BoocockandR. N.Haward(Soc. Chem. Ind. Monograph 20) Society of the Chemical Industry London 1966 p. 3.

10.1038/196160b0

Ambroz J., 1967, Macromolecular Chemistry, Prague 1965 (J. Polym. Sci. C, 16), 423

Pasquon I., 1959, Chim. Ind. (Milan), 41, 387

Keii T., 1967, Macromolecular Chemistry, Prague 1965 (J. Polym. Sci. C, 16), 1507

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Wiley

Tập 11 Số 8

1881-1888

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