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A preliminary study of the concentration of special purpose elements and precious metals in the enriched precipitates produced by a wet method of cathode-ray tube recycling

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Abstract

The purpose of the work is to investigate the existence and the possibility of recovering economically interesting elements, such as precious metals and rare earth elements, from phosphor layers of cathode ray tube wastes. Therefore, a series of analyses took place in the precipitation material that resulted from the disassembling and wet processing of the cathode-ray tube screens. An applied recycling method, that mechanically with water enriches precipitates of cathode ray tube glass (wet cathode ray tube recycling method), is hosted in a small-medium recycling company. Identification of the amorphous and crystalline phases in combination with the micro-structural characterization and the chemical, major, and trace-element analysis were performed in waste materials as well as in the precipitate that resulted from the wet cathode-ray tube recycling process. Important quantities of zirconium, yttrium, lanthanum, cerium, and gold appear in the precipitate. Conclusively, a hydraulic classification enrichment method should be, furthermore, examined.

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Acknowledgements

This work is supported by the research study “Recycling of photovoltaic panels and motor vehicles crystals” ΝΕΚ–01065 that is funded by the Operational Programme “Competitiveness, Entrepreneurship and Innovation” EPAnEK 2007-2013 of the Ministry of Economy and Development.

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Authors and Affiliations

  1. Department of Electrical and Electronics Engineering, Faculty of Engineering, University of West Attica, Aigaleo, Greece

    Panagiotis Sinioros

  2. Department of Geology and Geoenvironment, School of Science, National and Kapodistrian University of Athens, Athens, Greece

    Marianthi Anastasatou & Michael Stamatakis

  3. Kapetan Metapa Str., Piraeus, Greece

    Stavroula Kavouri

  4. Department of Environment, School of Environment, University of the Aegean, Mytilene, Greece

    Michael Lasithiotakis

  5. Greek Atomic Energy Commission, Athens, Greece

    Michael Lasithiotakis

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  1. Panagiotis Sinioros
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Correspondence to Marianthi Anastasatou.

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Sinioros, P., Anastasatou, M., Kavouri, S. et al. A preliminary study of the concentration of special purpose elements and precious metals in the enriched precipitates produced by a wet method of cathode-ray tube recycling. J Mater Cycles Waste Manag 22, 524–535 (2020). https://doi.org/10.1007/s10163-019-00947-w

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