Process for producing highly pure phenol

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

1993-03-30

1993-11-23

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568798, C07C 3770

Patent

active

052646360

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 .gamma.-alumina catalyst having a specific surface area of 80 to 400 m.sup.2 /g and an acid strength, according to Hammett's acidity function (Ho), of 3.ltoreq.Ho.ltoreq.6.8, in order 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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