FIELD: petroleum processing and petrochemistry. SUBSTANCE: invention can be used when isolating aromatic C6-C8-hydrocarbons from fraction 62-105 C by liquid extraction with selective solvents: triethylene glycol, sulfolan, their mixtures, and other extractants. Extractant is recovered from extract phase by water washing of bottom product from column for distillation of toluene from extract (xylene fraction) where extractant concentrates (in known method, extractant is washed out from extract). EFFECT: minimized losses of extractants and significantly reduced consumption of wash water. 2 tbl
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