METHOD OF PURIFICATION OF BENZENE FROM THIOPHENE Russian patent published in 2001 - IPC

Abstract RU 2174504 C1

FIELD: chemical industry. SUBSTANCE: benzene is purified from thiophene by treatment with sulfuric acid in amount of 0.5-1 wt.% calculated for benzene in the presence of diene hydrocarbons at molar ratio thereof to thiophene of 0.80-1.0, water in amount of 0.002-0.005 wt.% calculated for benzene and catalyst of interphase transfer of alkyl- and aryl-alkyl substituted amines. EFFECT: smaller amount of sulfuric acid, lower losses of benzene during purification and smaller amount of waste. 2 cl, 1 tbl

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RU 2 174 504 C1

Authors

Pantukh B.I.

Shekhtman V.I.

Shul'Manas S.V.

Dates

2001-10-10Published

2000-06-22Filed