Cryosynthesis of catalysts for propylene oligomerization based on titanium tetrachloride and magnesium

Abstract

A highly dispersed catalyst for oligo-and polymerization of propylene was synthesized by the interaction of TiCI 4 with magnesium in the cocondensates of their vapor with benzene and pentane. The catalyst contains MgCI 2 and organotitanium and organomagnesium cluster derivatives. The transformations of propylene and hex-l-ene over the catalyst.~ were studied. The direction of catalytic reactions and activity of the catalyst depend on the TiCl 4 : Mg molar ratio and the hydrocarbon used. Systems with an equimolar ratio of the reactants obtained in a benzene matrix exlu'bit the highest activity. Propylene oligomers containing a considerable fraction of unsaturated bonds are formed in the presence of the catalysts at room temperature and a pressure of 300 Tort.