Verfahren zur Herstellung von hochreinem Phenol

摘要

A process for producing a highly pure phenol, in which a crude phenol obtained from an acid-decomposition product of cumene hydroperoxide and having an alpha -methylstyrene content of 15 % by weight or less is catalytically treated with an acidic gamma -alumina catalyst having a specific surface area of 80 to 400 m<2>/g and an acid strength, according to Hammett's acidity function (Ho), of 3