A1 Journal article (refereed)
Porous 3D Printed Scavenger Filters for Selective Recovery of Precious Metals from Electronic Waste (2018)


Lahtinen, E., Hänninen, M. M., Kinnunen, K., Tuononen, H., Väisänen, A., Rissanen, K., & Haukka, M. (2018). Porous 3D Printed Scavenger Filters for Selective Recovery of Precious Metals from Electronic Waste. Advanced Sustainable Systems, 2(10), Article 1800048. https://doi.org/10.1002/adsu.201800048


JYU authors or editors


Publication details

All authors or editors: Lahtinen, Elmeri; Hänninen, Mikko M.; Kinnunen, Kimmo; Tuononen, Heikki; Väisänen, Ari; Rissanen, Kari; Haukka, Matti

Journal or series: Advanced Sustainable Systems

ISSN: 2366-7486

eISSN: 2366-7486

Publication year: 2018

Volume: 2

Issue number: 10

Article number: 1800048

Publisher: Wiley

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1002/adsu.201800048

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/60467


Abstract

Selective laser sintering (SLS) 3D printing is used to fabricate highly macroporous ion scavenger filters for recovery of Pd and Pt from electronic waste. The scavengers are printed by using a mixture of polypropylene with 10 wt% of type‐1 anion exchange resin. Porosities and the flow‐through properties of the filters are controlled by adjusting the SLS printing parameters. The cylinder‐shaped filters are used in selective recovery of Pd and Pt from acidic leachate of electronic waste simply by passing the solution through the object. Under such conditions, the scavenger filters are able to capture Pd and Pt as anionic complexes with high efficiency from a solution containing mixture of different metal ions. By using the Pd/Pt scavenger together with previously reported, highly selective nylon‐based Au scavenger, precious metals, i.e., Au, Pd, and Pt could all be recovered from the electronic waste leachate in a single flow‐through process. One of the main advantages of the printed scavengers is that all recovered metals can be easily extracted from the filters as separate fractions by using aqueous solutions of thiourea or diluted nitric acid. After removal of the captured metals, the scavengers are reusable without significant loss of their ion‐capturing performance.


Keywords: waste electronic and electrical equipment; metals; noble metals; recovery (recapture); 3D printing; filters; sintering

Free keywords: porous 3D printed scavenger filters; precious metals; electronic waste


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Ministry reporting: Yes

Reporting Year: 2018

JUFO rating: 1


Last updated on 2021-25-08 at 12:10