Polystyvert’s proprietary dissolution technology would offer a cost-effective method for closed-loop polystyrene recycling

Ineos Styrolution, a global styrene specialist, and Polystyvert, a Montreal-based dissolution technology developer, are collaborating on a project that seeks to convert post-consumer polystyrene into a new high-quality PS resin.

Polystyvert uses a proprietary technology to dissolve post-consumer polystyrene waste in a solvent. The process mechanically and chemically separates contaminants and additives before finally separating the original polymer from the solvent. The resulting end product is a ‘clean’ polymer that can be reused as a new resin raw material.

“Dissolution is an efficient and energy-efficient technology that offers a cost-effective solution for recycling polystyrene in a closed loop,” explained Solenne Brouard, CEO of Polystyvert. With this method, “recycled polystyrene is produced at a competitive price, which opens up all the potential for a circular economy.”

Polystyvert specified that its deep purification technology offers the ability to treat all types of raw materials, from industrial waste to post-consumer streams. The technology can remove a variety of difficult-to-remove contaminants, such as pigments and brominated flame retardants. Recycled PS granules can be used to make various categories, including food grade applications, of PS-based products.

Boost to advanced recycling technologies

The joint development agreement reinforces Ineos Styrolution’s commitment to exploring continuous research on advanced recycling technologies. “The purification capability of Polystyvert technology is unique,” said Ricardo Cuetos, vice president of Ineos Styrolution Americas, Standard Products. “The high quality of the final recycled polystyrene resin is essential to achieve a truly circular economy in key markets such as food service packaging.”

Brouard added that Polystyvert is “pleased to be working with Ineos Styrolution to establish a truly circular economy for polystyrene. Our common goal is to recycle as much polystyrene as possible and a partnership, as such, will make a difference. “

These and other circular products will be available at Chinaplas 2021.