Terephthalic acid is a widely used fibre intermediate and ranks 25th in tonnage of all chemicals produced in the world. The growing demand for PTA is fueled primarily by its consumption in the textile industry as cotton availability is limited and a need for a suitable substitute was required to sustain the textile industry.

Terephthalic acid is a widely used fibre intermediate and ranks 25th in tonnage of all chemicals produced in the world. The growing demand for PTA is fueled primarily by its consumption in the textile industry as cotton availability is limited and a need for a suitable substitute was required to sustain the textile industry.