FIELD: chemistry.
SUBSTANCE: invention relates to a method of purifying hydrocarbon fractions from mercaptans by treating raw material with air in the presence of a catalyst - copper complex in form of a complex of formula CuIICl1-2(L)1-2, where L is hydroxyalkylpyridine of general formula CnH2n(OH)C5H4N, where n=2-4.
EFFECT: simplification of purification technology owing to preparation of synthetic catalyst which enables to carry out demercaptanisation in the absence of a water alkali.
2 cl, 20 ex, 3 tbl
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