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Signus Ecovalor

The Extended Producer Responsibility Scheme is a non-profit organisation set up on the initiative of the leading tyre manufacturers to guarantee the proper environmental management of end-of-life tyres, ensuring compliance with Royal Decree 1619/2005.
https://www.signus.es/

The challenge

Currently, use of the textile fraction from tyre recycling is complicated due to the difficulty of obtaining clean material. Therefore, the challenge initially lies in separating the different materials that make up the waste for the subsequent recovery of the textile fraction and the remains of rubber particles through chemical recycling. This results in high value-added products that can be synthesised, such as PET fibres, which are reintroduced into the value chain.

The solution

Various processes for separating the materials of interest that make up the waste with a view to their recovery were evaluated, and at the same time, conditioning stages were implemented for their suitability for the recycling treatments performed. The textile fraction was chemically recycled by depolymerisation to obtain monomers for further synthesis into new PET fibres. In this way, the materials of interest are recovered so landfill is avoided and they can be reincorporated into the value chain.

Results

  • Characterisation of the target waste by identifying the compounds present and their proportion
  • Evaluation of different methods of separating the target compounds present in the waste for subsequent recycling
  • Assessment of the suitability of chemical recycling for complex waste targets
  • Implementation of suitable recycling techniques to recycle the textile fraction from end-of-life tyres to foster the circular economy

What is said about our Centre?

"The team was ever willing to adapt to changes and solve problems, which enabled the established objectives to be successfully fulfilled. The creativity and originality in the performance of the tasks were also outstanding. Overall, it was a highly successful project that exceeded expectations in terms of results and process, due to its innovative approach and great deal of flexibility."

Leticia Saiz (Development and Innovation Director)

SIGNUS ECOVALOR, S.L

Waste management / Recycling

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