▎ 摘　　要

NOVELTY - Preparing differential purified terephthalic acid involves mixing bismuth molybdate, graphene oxide, hypochlorous acid solution, zinc oxide, white carbon black, potassium titanate whisker with hydrofluoric acid aqueous solution. The mixture is ground, and then carried out with hydrothermal reaction. The mixture is filtered, calcined, and then plasma processed. The mixture is added with acetic acid and water. The obtain mixture is added with sodium hexametaphosphate aqueous solution, nickel fluoroborate, calcium tungstate and special agent. The mixture is pulped and dispersed to obtain special modified liquid, fused with crude terephthalic acid slurry. The mixture is crystallized, solid-liquid separated, washed, dried, and then crushed. The mixture is hydrogenated and refined. USE - Method for preparing differential purified terephthalic acid. ADVANTAGE - The method enables to prepare differential purified terephthalic acid with obvious anti-aging effect.