Abstract
The study considers the process of ethylene oligomerization in a medium of aliphatic and aromatic solvents in the presence of complex catalytic systems based on zirconium carboxylates, which were obtained from the fractions of naphthenic acids recovered from Baku oils and individual carboxylic acids. It was found that the catalytic activity and the molecular weight distribution (MWD) of the produced oligomeric products depend mostly on the solvent nature and the composition of zirconium complex. The ethylene oligomerization rate in the presence of catalytic systems based on zirconium carboxylates is 2–3 times lower in a medium of aliphatic solvents as compared to aromatic solvents; the obtained product has a narrow MWD and consists predominantly of С4-С10 fractions. Oligomeric products obtained in a medium of aromatic solvents have a broad MWD and in the presence of zirconium carboxylates comprise mostly С4-С18, while in the presence of zirconium naphthenates, С12-С18 and С20 fractions.
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