METHOD OF PURIFYING BENZENE FROM THIOPHENE

摘要

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