Process for producing hydroquinone.

摘要

The present invention concerns a process for producing hydroquinone from the hydrocarbon mixture obtained as a by-product when producing cumene, by oxidizing the tertiary alkylaromatics selectively to become hydroperoxides, by separating from the oxidation product the dihydroperoxide of p-diisopropylbenzene by selective crystallizing by cooling, and by decomposing said hydroperoxide with the aid of an acid catalyst to become hydroquinone.