Process for producing highly pure phenol

Details Process for producing highly pure phenol Process for producing highly pure phenol

C - Chemistry, Metallurgy

07

C

C07C 39/04 (2006.01) C07C 37/82 (2006.01) C07C 37/86 (2006.01)

Patent

CA 2093284

ABSTRACT 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 ? -alumina catalyst having a specific surface area of 80 to 400 m2/g and an acid strength, according to Hammett's acidity function (Ho), of 3?Ho?6.8 to convert aliphatic and aromatic carbonyl compounds contained in the crude phenol into high-boiling compounds without causing the substantial formation of a dimer of .alpha.- methylstyrene contained in the crude phenol, and then, a phenol and the so-formed high-boiling compounds were separated by distillation.

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