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The Keysino KS-OTA treatment system filters PTA oxidation mother liquor to recover TA particles, acetic acid (HAC), and catalysts (Co, Mn). The recovered TA particles can be directly reused in the oxidation system without repulping, reducing PX consumption and decreasing the treatment volume of oxidation residues. The filtrate is clear and free of solid impurities, improving the recovery rate of catalysts in subsequent oxidation mother liquor and lowering HAC recovery costs.

Keysino's PTA Production Technology Package

1. Recovery of Co/Mn catalysts and PTA/4-CTA particles from purified mother liquor.

2. HAC recovery reduces HAC consumption by 1.5-2 kg HAC per ton of product.

3. Reuse treatment of PTA comprehensive wastewater.

The KS-OTA system employs proprietary anti-fouling designs with long service life and near 100% TA recovery efficiency. This technology represents a novel clean production and energy-saving solution for PTA oxidation mother liquor applications.