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| Picture: Grannex |
GRANNEX GmbH & Co. KG has successfully commissioning its first industrial-scale pilot plant based on its patented process. The patent (EP4291379) was granted in 2024, and the first facility based on this innovation was completed in early 2025. It is now operating under regular conditions. Even in challenging times, GRANNEX has invested approximately €20 million at its Osnabrück site to establish a 16,000-ton-per-year multi-variable processing capacity, thereby strengthening mechanical plastic recycling.
The patented process – developed under the leadership of Markus Boerger – combines shredding, washing, and sorting in a modular system. This enables the efficient processing of unsorted, heavily contaminated, and complex plastic waste mixtures from various sources (PCW & PMW) within a single facility, while significantly increasing recovery rates. GRANNEX is thus capable of processing not only polyolefin-based mixtures with variable 2D and 3D components – such as polypropylene (PP), polyethylene (PE), and films – but also technical plastics like ABS from heterogeneous waste streams, reintegrating them into the product cycle. According to company, the resulting recyclates feature polymer purity of up to 99.9%, meeting even the most demanding requirements of direct processors.
A key focus is the so-called “closed-loop” approach: the process has already proven effective in product-to-product applications. Customers can use it to convert their own post-consumer waste into new proprietary products. This has been successfully demonstrated in close collaboration with partners.
