FIELD: chemistry.
SUBSTANCE: method is implemented by extraction in a "liquid-liquid" system with sodium hydroxide solution, using unit (2) for pretreatment of feedstock to be treated, placed upstream of extraction unit (4), sodium hydroxide being introduced into column (4) by means of two separate circuits functioning as described in patent claim.
EFFECT: disclosed is a method for selective extraction of sulphur-containing compounds from gasoline fraction of hydrocarbons or liquefied petroleum gas.
1 cl, 3 dwg, 1 tbl, 7 ex
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