FIELD: chemistry.
SUBSTANCE: invention relates to a method of extracting benzene from mixtures with non-aromatic hydrocarbons, simultaneously obtaining distillate through extractive rectification, characterised by that the selective solvent used is in form of mixtures containing 14.7-48.5 wt % sulfolane or N-formylmorpholine and 48.5-83.3 wt % methylpyrrolidone, containing 2-3 wt % water.
EFFECT: use of given method allows for obtaining benzene, toluene and distillate containing not more than 1-1,5 vol. % benzene, which can be used as a component of motor car fuel or as raw material for pyrolysis process.
1 cl, 1 ex, 4 tbl, 2 dwg
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Authors
Dates
2010-02-10—Published
2008-05-08—Filed