Patent ID: 6423876
Filing Date: 2002-07-23
Classification: C07C

Abstract:
A process for producing dihydroxybenzene, which comprises the steps of:(1) oxidizing diisopropylbenzene to obtain a reaction mixture containing di(2-dihydroperoxy-2-propyl)benzene; (2) cleavinq di(2-dihydroperoxy-2-propyl)benzene in the reaction mixture to obtain a mixture containing crude dihydroxybenzenes; (3) distilling the mixture containing crude dihydroxybenzene to obtain a fraction containing acetone from a low boiling side, and a fraction containing dihydroxybenzene from a high boiling side; (4) distilling the fraction containing dihydroxybenzene obtained in the above-mentioned step (3) to obtain a fraction containing dihydroxybenzene from a low boiling side, and a fraction containing heavy material from a high boiling side; and (5) mixing the fraction containing dihydroxybenzene obtained in the above-mentioned step (4) with water, and contacting the resulting mixture with an extraction solvent, followed by separating into an aqueous layer containing dihydroxybenzene and an oily layer containing impurity.