Abstract
Al-rich waste pharmaceutical blisters (WPBs) have a multi-layer structure that contains aluminum and polymer-based fractions. Although the aluminum mass in WPBs is less than typical aluminum packaging products such as beverage cans, establishing a feasible recycling procedure is possible by separating the fractions to recover both metal and plastic. Hydrometallurgical methods are mostly preferred for the separation of aluminum and plastic in multi-layered structures. This work reports the characterization of Al-rich WPBs and the separation behavior of aluminum and plastic layers. The effects of hydrochloric acid, acetic acid, formic acid, sulfuric acid, ethanol, acetone, and organic solvent (benzene–ethanol–water) on the separation behavior of layers were studied at different temperatures. Furthermore, the recycling yield of the aluminum fraction was experimentally assessed.
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Acknowledgement
This research was funded by the Scientific and Technological Research Council of Turkey (TÜBITAK) under the BIDEB-2232 program with grant number 118C311. Center for Materials Research at İzmir Institute of Technology is gratefully acknowledged for the sample analyses.
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Çapkın, İ.Y., Gökelma, M. Characterization and Separation Behavior of Multi-layers in Aluminum-Rich Waste Pharmaceutical Blisters. JOM 75, 4672–4679 (2023). https://doi.org/10.1007/s11837-023-06072-2
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DOI: https://doi.org/10.1007/s11837-023-06072-2