Clariant launches titanium catalyst for polyester production at K 2025

Clariant's innovative AddWorks titanium-based catalyst solutions set to transform polyester polymerization with enhanced sustainability and performance

Clariant is launching its new AddWorks titanium-based catalyst solutions for the sustainable production of polyesters, including polyethylene terephthalate (PET) at K 2025.

Set to be commercially available in 2026, this technology provides a high-performance alternative to traditional antimony-based catalysts, while also enabling heavy metal-free polyester production.

While the initial focus is on PET due to its large global market, Clariant’s titanium-based catalyst solutions are designed to work across the entire polyester family.

The titanium-based catalyst technology represents a significant advancement in polyester production, enabling superior performance while being safer for people and the environment through lower environmental mobility and toxicity, and reduced risk of bioaccumulation.

"Our AddWorks titanium-based catalyst technology marks an important shift in polyester manufacturing," said Mariano Suarez Head of Marketing Additives at Clariant. "By enabling lower processing temperatures and eliminating heavy metals from the production process, we are helping our customers achieve their sustainability goals while simultaneously improving their operational efficiency and product quality."

The innovation comes at a critical time for the polyester industry, which faces growing uncertainty following China's implementation of antimony export controls effective since 2024. As China represents a major global supplier of antimony – a key component in traditional polyester catalysts – these restrictions have created significant supply chain challenges for manufacturers worldwide.

"We developed this technology with a dual focus on sustainability and performance," Emilie Meddah, Market Manager Additives at Clariant explained. "Our customers are increasingly facing pressure from regulators and consumers to reduce environmental impact without compromising product quality. AddWorks titanium-based catalyst solutions address both concerns simultaneously, offering a truly future-proof option for polyester production."

The solution is particularly valuable for polyester resin manufacturers, fiber producers, PET recyclers, and technology licensors seeking to differentiate their offerings in an increasingly sustainability-conscious market. By enabling the production of heavy metal-free polyester, Clariant's technology also supports brand owners in meeting evolving consumer demands and regulatory requirements.