METHOD OF PURIFYING BENZENE FROM THIOPHENE Russian patent published in 2000 - IPC

Abstract RU 2155177 C1

FIELD: preparation of highly pure benzene, more particularly cleaning of benzene from thiophene. SUBSTANCE: content of thiophene in benzene used in synthesis on metal- containing catalysts is not more than 0.00005 wt %. Benzene is purified from thiophene with urotropin in amount of 1.5-3.0 moles per 1 mole of benzene in the presence of catalytic amounts of sulfuric acid. EFFECT: lower benzene losses when benzene is purified from thiophene and reduced amount of agent per unit of product. 4 ex

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RU 2 155 177 C1

Authors

Trofimov V.N.

Pantukh B.I.

Derevtsov V.I.

Mezheritskij A.M.

Sedova S.N.

Ehkkert N.V.

Dates

2000-08-27—Published

1999-08-10—Filed