Production of terephthalic acid with excellent optical properties through the use of pure or nearly pure oxygen as the oxidant in p-xylene oxidation

摘要

The production of terephthalic acid by the oxidation of p-xylene is carried out in such a manner that the oxygen concentration in the liquid phase is maximized through the use of pure or nearly pure oxygen, while simultaneously the hydrocarbon feed concentration is minimized through rapid dilution with the reactor contents.