Abstract:

Industrial naphthalene contains impurities of benzothienyl,phenols,quinolines and other unsaturated compound which has bad influences on the further application of naphthalene.The boiling points of naphthalene and main impurity benzothiophene are too close to separate each other directly by distillation.Using hydrogen peroxide as oxidant,formic acid as catalyst,oxidation method can be effectively used for the removing of benzothiophene from industrial naphthalene.Industrial naphthalene; Benzothiophene; Refined naphthalene; Hydrocarbonylation