Skip to main content
Erschienen in: Journal of Material Cycles and Waste Management 2/2018

24.11.2017 | ORIGINAL ARTICLE

Palladium recovery from monolithic ceramic capacitors by leaching, solvent extraction and reduction

verfasst von: Danilo Fontana, Massimiliana Pietrantonio, Stefano Pucciarmati, Giorgia Nadia Torelli, Chiara Bonomi, Federica Masi

Erschienen in: Journal of Material Cycles and Waste Management | Ausgabe 2/2018

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

Abstract

Palladium finds a remarkable use in electronic devices and catalysts; therefore, an efficient and complete recovery from the containing secondary materials assumes a great relevance. The present paper discusses recovery of palladium (Pd) contained in monolithic ceramic capacitors from waste printed circuit boards (PCBs) of electrical and electronic equipment by hydrometallurgical techniques. Samples, after a milling step, were leached by aqua regia varying the operative conditions. Parameters such as lixiviant concentration, solid/liquid ratio and temperature were investigated. Pd was separated from the leach solution by solvent extraction using Aliquat 336 as an extractant in limonene. This solvent was studied as alternative to the usual ones because it is a renewable organic diluent, with low-toxicity and easily available. After the extraction the organic phase was treated with sodium borohydride to precipitate metallic palladium obtaining a recovery rate of 83% with a purity grade of 98.8%. Based on the results of the present study, a process flow sheet was proposed for industrial implementation.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Literatur
1.
Zurück zum Zitat Hagelüken C (2006) Markets for the catalyst metals platinum, palladium and rhodium. Metall 1–2:31–42 Hagelüken C (2006) Markets for the catalyst metals platinum, palladium and rhodium. Metall 1–2:31–42
2.
Zurück zum Zitat Report on Critical raw materials for the EU—European Commission (2014) Report on Critical raw materials for the EU—European Commission (2014)
22.
Zurück zum Zitat El-Hefny NE, Daoud JA (2013) Solvent extraction of palladium(II) from aqueous chloride medium by triphenylphosphine, triphenylphosphine oxide or triphenylphosphine sulphide in benzene. J Phys Sci 24(2):35–47 El-Hefny NE, Daoud JA (2013) Solvent extraction of palladium(II) from aqueous chloride medium by triphenylphosphine, triphenylphosphine oxide or triphenylphosphine sulphide in benzene. J Phys Sci 24(2):35–47
26.
Zurück zum Zitat Othman N, Noah NFM, Sulaiman RNR, Bachok SK (2014) Liquid–liquid extraction of palladium from simulated liquid waste using phosphinic acid as a carrier. J Teknologi 68(5):41–45 Othman N, Noah NFM, Sulaiman RNR, Bachok SK (2014) Liquid–liquid extraction of palladium from simulated liquid waste using phosphinic acid as a carrier. J Teknologi 68(5):41–45
32.
Zurück zum Zitat Brunori C, Cafiero L, De Carolis R, Fontana D, Guzzinati R, Pietrantonio M, Pucciarmati S, Torelli GN, Trinca E, Tuffi R (2015) Innovative technologies for metals recovery and plastic valorisation from electric and electronic waste: an integrated approach. Environ Eng Manag J 14(7):1553–1562 Brunori C, Cafiero L, De Carolis R, Fontana D, Guzzinati R, Pietrantonio M, Pucciarmati S, Torelli GN, Trinca E, Tuffi R (2015) Innovative technologies for metals recovery and plastic valorisation from electric and electronic waste: an integrated approach. Environ Eng Manag J 14(7):1553–1562
33.
Zurück zum Zitat Brunori C, Fontana D, De Carolis R, Pietrantonio M, Pucciarmati S, Guzzinati R, Torelli GN (2014) Hydrometallurgical process to recover valuable materials from printed circuit boards. Patent application n PCTIB2014065131 Brunori C, Fontana D, De Carolis R, Pietrantonio M, Pucciarmati S, Guzzinati R, Torelli GN (2014) Hydrometallurgical process to recover valuable materials from printed circuit boards. Patent application n PCTIB2014065131
Metadaten
Titel
Palladium recovery from monolithic ceramic capacitors by leaching, solvent extraction and reduction
verfasst von
Danilo Fontana
Massimiliana Pietrantonio
Stefano Pucciarmati
Giorgia Nadia Torelli
Chiara Bonomi
Federica Masi
Publikationsdatum
24.11.2017
Verlag
Springer Japan
Erschienen in
Journal of Material Cycles and Waste Management / Ausgabe 2/2018
Print ISSN: 1438-4957
Elektronische ISSN: 1611-8227
DOI
https://doi.org/10.1007/s10163-017-0684-3

Weitere Artikel der Ausgabe 2/2018

Journal of Material Cycles and Waste Management 2/2018 Zur Ausgabe