AI Article Synopsis
- - This study presents a sustainable method using Ionic Liquids (ILs) to improve basic catalysts for breaking down polyurethane foam wastes (PUFWs) through processes like hydrolysis, under mild conditions.
- - The hydrolysis process can recycle PUFWs in just 2 minutes at high temperatures, yielding a reusable white polyol for new polyurethane production.
- - The method is scalable to handle 200 g of PUFWs per batch, emphasizing its practical potential for industrial use, along with the reusability of the ionic liquid without losing effectiveness.
Article Abstract
This study introduces a novel and sustainable approach using Ionic Liquids (ILs) as a non-innocent solvent that enhances the performance of the basic catalysts to depolymerize polyurethane foam wastes (PUFWs) through hydrolysis, alcoholysis or aminolysis under mild conditions. The system is stable, fully recoverable, and reusable. Hydrolysis of PUFWs can occur in just 2 minutes at 95-98 °C, producing a white polyol that is easily separated and reused in new polyurethane synthesis. The method was successfully scaled up to depolymerize 200 g of PUFW per batch (1 kg overall depolymerization system). This scalability, combined with the medium's reusability without loss of effectiveness, highlights its strong potential for industrial applications.
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| http://dx.doi.org/10.1002/anie.202418034 | DOI Listing |
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