Zr-BASED HETEROGENIZED CATALYTIC SYSTEMS FOR OLIGOMERIZATION OF ETHYLENE TO OLEFINS AND OIL FRACTIONS

The process oligomerization of ethylene studied using heterogenized zirconium complexes containing amino- and iminohydrochloride substituents ionic liquid type and alkyl aluminum chlorides as cocatalysts. İt was established that the composition of product oligomerization of the ethylene changes depending on the type of zirconium complexes and aluminium organic compound. The polyetilenic oil fractions obtained in the presence of zirconium complexes and ethyl aluminum dichloride (C2H5)AlCl2 catalyst have highly branched molecules structure, low viscosity indexes contains naphthenic rings. The oligomeric product obtained using of dialkylaluminiumchloride (C2H5)2AlCl cocatalyst depending on molar ratio of Zr/Al, reaktion temperature and pressure of ethyelene is mainly consists of C4–C10 ofolefin fractions linear structure with the yield of 78.8–91.6%. It was shown that sintesized zirconium complexes may be repeatedly reused in successive ethylene oligomerization for obtaining both α-olefins and polyethylene oil fraction