Results of research in the field of purification of Naftalan oil fractions with appropriate solvents

Oil fraction samples were selected from individual wells of the Naftalan field. The physicochemical, spectral properties and structure of fractions obtained from mixtures of Naftalan oil were determined by using modern methods of analysis. For purification of Naftalan oil fractions from aromatic and sulfur compounds, an extraction process was carried out with ionic liquids (morpholineformate, diethylamineformate, triethylamineformate, pyridineformate, N-methyl-2-pyrrolidoneformate, piperidineformate, anylinformate), as well as and N-methyl-2-pyrrolidone extractants. In the obtaining of therapeutic “White Naftalan” oil from a fraction of Naftalan oil boiling at 200–450 °C, the purification process with ionic liquid morpholineformate in a mass ratio oil fraction: ionic liquid – 1:1, at a temperature of 60 oC, was carried out in 4 stages, with the contact time of 1 hour for each stage. In the purification proces the amount of aromatic hydrocarbons decreased and was 2 %, and the raffinate yield was 72.65 %. was. Thus, according to the results of IR, UV spectral analysis of the morpholineformate ionic liquid can be considered an economically and environmentally effective extractant in the obtaining of therapeutic “White Naftalan” oil.