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Sulzer GTC has a series of polyester technologies, which apply in case-specific situations. These all integrate together to improve process efficiency, solve specific problems, or make selective debottlenecks. GTC’s portfolio includes paraxylene and meta-xylene raw materials, DMT and PTA, and continuous melt phase polymerization for PET.

Dimethyl Terephthalate (DMT)

The technology addresses oxidation, distillation, esterification, crystallization, and waste-water treatment resulting in lower energy consumption, increased capacity, and yield improvements.


GT-PTA, our process for producing purified terephthalic acid (PTA) has several advantages over the original Amoco method, making it the most efficient method in the industry.

Carboxylic Acid Recovery

Our GT-CAR carboxylic acid recovery technology that combines liquid-liquid extraction technology with distillation to recover and concentrate carboxylic acids from wastewater.

Paraxylene (PX)

GTC’s expanding technology portfolio introduces GT-TolAlk, a new way to derive PX while eliminating benzene production.

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