Collect. Czech. Chem. Commun. 1983, 48, 2798-2804

Diethyl ether sorption on titanium trichloride and its correlation with catalytic activity in the polymerization of propene

Luboš Pololáník, Jiří Mejzlík, Oldřich Hamřík and Jan Blatný

Chemopetrol, Research Institute of Macromolecular Chemistry, 656 49 Brno


A series of samples exhibiting different catalytic activity and sorption properties was obtained by grinding two basic types of titanium trichloride (TiCl3.1/3 AlCl3 and TiCl3). The samples with co-crystallized AlCl3 can sorb, under otherwise identical conditions, by an order of magnitude more diethyl ether than those of pure TiCl3. The amount of sorbed ether increases with its partial pressure and decreases when elevating the temperature of sorption. There is a correlation between the quantity of ether sorbed on TiCl3 and the catalytic activity of the latter in the propene polymerization. This correlation is, however, different for both examined catalyst types.