Process for producing dihydroxybenzene

Details Process for producing dihydroxybenzene Process for producing dihydroxybenzene

C - Chemistry, Metallurgy

07

C

C07C 37/58 (2006.01) C07C 39/08 (2006.01)

Patent

CA 2371076

There is provided 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) cleaving di(2-dihydroperoxy-2-propyl)benzene in the reaction mixture to obtain a mixture containing crude dihydroxybenzene; (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.

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