FIELD: chemistry.
SUBSTANCE: invention relates to a method of extracting oxidised sulphur compounds, particularly sulphoxides and sulphones, from a mixture with hydrocarbons and sulphur compounds by treating the mixture with an extractant in weight ratio raw material: extractant from 1:1 to 1:7, and temperature from 30 to 70°C. The extractant used is isopropyl alcohol with water content from 30 to 50 vol. % (36.55-59.77 wt %) and hydrocarbon content from 0.05 to 0.1 wt %.
EFFECT: high content of sulphoxides and sulphones in the concentrate.
7 ex, 1 tbl
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