A process is disclosed that relates to the removal of impurities and the
recovery of a mother liquor and wash filtrate from an oxidizer purge
stream produced in the synthesis of carboxylic acid, typically
terephthalic. More particularly, the process involves the removal of
impurities and the recovery of a mother liquor and wash filtrate from an
oxidizer purge stream and then routing the mother liquor and or wash
filtrate to an oxidation zone.