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Polymer Filtration in Chemical Recycling

Polymer Filtration in Chemical Recycling: Backwashable Filter Cartridges as a New Key Technology

 2 min

In a rapidly developing chemical industry, especially in the chemical recycling sector, the efficient and environmentally friendly processing of plastic polymers undoubtedly plays a central role. A milestone in this area is the introduction of advanced filter systems characterised by the backwashing of filter cartridges. This innovative technology of polymer filtration offers decisive advantages not only for chemical recycling, but also for a variety of other applications within the chemical industry. It enables much more efficient and purer processing of polymers, resulting in a significant increase in product quality and a reduction in waste as well as energy consumption.

Complex Challenges in Polymer Filtration

The latest generation of filter systems integrates the Divex-Pro changeover valves, which are based on the Maag Group’s proven ‘CSC-Pro screen changer technology’. These valves are characterised by a robust, one-piece valve body with an integrated HTM heating cage and a compact design that eliminates the need for an additional heating mantle. Their robust piston technology enables precise and reliable switching between the filter containers and ensures that the polymer flow is diverted efficiently and without impact.

The highly polished flow channels and the ability to coat with different materials offer high grade performance even when processing corrosive polymers. This attention to detail and the high quality of the design reflect a clear commitment to continuously improving the longevity and efficiency of filter technology.

In-situ Backwashing: Longer Service Life and Increased Cost Efficiency

A particularly outstanding feature of the new filter generation is the in-situ backwashing of the cartridge bundles. Based on the established backflush screen changer technology, this innovation enables the filter cartridges to be cleaned directly in the tank without interrupting the continuous polymer flow. This technology is particularly important for applications in chemical recycling, where often heavily contaminated polymers are processed. This type of backwashing not only significantly extends the service life of the filter cartridges, but also makes a major contribution to reducing operating costs. This is a decisive advance, as frequent cleaning or replacement of filter elements in conventional systems is often associated with high costs and production downtime. The ability to clean the filter cartridges efficiently and without interrupting production is a clearly recognisable advantage and ultimately contributes to sustainability and cost efficiency in polymer processing.

(Source: Chemie Technik)

Photo: sata_production

21.11.2023/in Innovation, Sustainability
https://weserland.eu/wp-content/uploads/2023/11/AdobeStock_470424566_s.jpeg 853 1280 Tom Ruthemann https://weserland.eu/wp-content/uploads/2022/08/wl-logo-1.svg Tom Ruthemann2023-11-21 17:43:532023-11-21 17:48:58Polymer Filtration in Chemical Recycling: Backwashable Filter Cartridges as a New Key Technology

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