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Son Güncelleme: 08.12.2021 15:36
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Evonik aims to generate additional sales with solutions for circular plastics

lichtkunst.73, pixelio.de

As part of the transition to a circular economy, the company offers its customers solutions for all stages in the polymer value chain. Additives and technologies from Evonik make mechanical and chemical recycling more efficient thus improving the availability of circular plastics. Evonik will also increase the use of sustainable raw materials from circular sources in its own production processes. Overall, the company expects its global circular plastics program to generate additional sales of more than €350 million a year by 2030.

“The careful use of resources and protection of the climate leads us down the path towards a circular economy,” said Harald Schwager, deputy chairman of Evonik’s executive board, who is responsible for innovation. “We have the innovative capability to create new materials cycles with fewer fossil-based feedstocks and more circular ones. We intend to utilize that potential.”

In mechanical recycling, plastics are sorted, prepared and washed, before being melted and granulated into a recyclate. This procedure is used mainly for thermoplastics and in a similar process for old tires. Evonik experts are working to help recyclers significantly improve the efficiency and quality of the processes. For example, customized surfactants are used to make sure labels can be removed quickly without leaving residues, while defoamers simplify washing processes and dewatering agents save energy and time in subsequent drying. Another focus is minimizing the odor of the recyclate. Specialty additives from Evonik can increase the amount of high-quality re-usable recyclate obtained by about 5 percent. Evonik aims to offer such solutions for about 400,000 metric tons of recyclable plastics by 2025.

Evonik is also working on various chemical recycling technologies for plastic waste that cannot be recycled mechanically. Here, the polymer chains are split to obtain building blocks for the production of new plastics. For example, Evonik is currently developing a process to facilitate recycling of heavily contaminated polyethylene terephthalate (PET) waste. New molecules for high-end applications can be obtained via methanolysis.