A liquid-gas phase reactor system including a slinger located in an upper section (headspace region) of a reaction vessel. The slinger comprises an u pper horizontal surface including a plurality of vertically raised vanes ext ending radially outward along a curved path which effectively distribute liq uid about the reactor vessel. A method for conducting an oxidation reaction using a liquid-gas phase reactor system is also disclosed. The disclosed rea ctor system and method have a broad range of applications but are particular ly suited for the production of terephthalic acid.
