Verfahren zur Abtrennung von aromatischen Hydroxyverbindungen aus Fluiden

摘要

The invention relates to a method for removing aromatic hydroxy compounds from fluids that contain an aromatic hydroxy compound and at least one ring alkylation product. The method is characterized by contacting the fluid with an anion exchanger in the hydroxyl form, the aromatic hydroxy compound having a higher affinity to the anion exchanger than its ring alkylation products. The fluid from which the aromatic hydroxy compounds have been removed is then removed from the anion exchanger. The fluid used is for example a crude reaction mixture derived from the alkylation of aromatic hydroxy compounds.