Patent ID: 6824687
Filing Date: 2004-11-30
Classification: C02F,C07C,Y10S

Abstract:
In a process for producing acetone and phenol from cumene which includes an acetone finishing column and an alpha-methylstyrene recovery system downstream of the acetone finishing column, a method for extracting phenol from waste water which comprises:a) contacting a phenol-containing waste water stream with a fresh hydrocarbon solvent, said hydrocarbon solvent being a hydrocarbon portion of a bottoms stream from the acetone finishing column, to produce a dephenolated waste water stream and a spent hydrocarbon solvent; and, b) conveying at least some of the spent hydrocarbon solvent to the alpha-methylstyrene recovery system without recycling any portion of the spent hydrocarbon solvent to the step (a) of contacting the phenol-containing waste water.