FIELD: chemistry of aromatic compounds, organic chemistry, chemical technology.
SUBSTANCE: method involves purification of benzene from thiophene in the presence of diene compounds, water and urotropin by its treatment with sulfuric acid solution at 20-40°C in cascade of mixing units and with fractional (distributed) feeding sulfuric acid solution in mixing units. Method provides simplifying the process and enhanced yield of benzene.
EFFECT: improved method for treatment.
3 cl, 3 tbl, 6 dwg, 7 ex
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