Promoted oxidation of phenol in aqueous solution using molecular oxygen at mild conditions

摘要

Wet oxidation with molecular oxygen at mild conditions (temperature < 200 deg. C, pressure≤2 MPa)is an economically attractive pretreatment step for non-biodegradable aqueous waste streams. In order to overcome the low reactivity of molecular oxygen towards organic molecules at these mild process conditions, an initiator was used in combination with ferrous ions in the acidic range. The promoted oxidation of phenol in aqueous solution was investigated in a 4 liters stirred autoclave.