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Volume 65, Issue 1
  • ISSN: 2056-5135
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  • oa Platinum Group Metals Recovery Using Secondary Raw Materials (PLATIRUS): Project Overview with a Focus on Processing Spent Autocatalyst

    Novel pgm recycling technologies ready for demonstration at next scale

  • Authors: Giovanna Nicol1, Emma Goosey2, Deniz Şanlı Yıldız3, Elaine Loving4, Viet Tu Nguyen5, Sofía Riaño5, Iakovos Yakoumis6, Ana Maria Martinez7, Amal Siriwardana8, Ainhoa Unzurrunzaga8, Jeroen Spooren9, Thomas Abo Atia9, Bart Michielsen9, Xochitl Dominguez-Benetton9 and Olga Lanaridi10
  • Affiliations: 1 Centro Ricerche Fiat Scpa (CRF)Strada Torino, 50–10043 Orbassano (TO)Italy 2 Env-Aqua Solutions Ltd (Env Aqua)304 Myton Road, Warwick, CV34 6PUUK 3 Ford Otomotiv San AŞ (Ford), R&D Center Akpinar MahHasan Basri Caddesi No:2, 34885 Sancaktepe, İstanbulTurkey 4 Johnson Matthey, Blount’s Court RoadSonning Common, Reading, RG4 9NHUK 5 Katholieke Universiteit Leuven (KU Leuven), Department of ChemistryCelestijnenlaan 200F, PO box 2404, 3001 Leuven (Heverlee)Belgium 6 MONOLITHOS Catalysts & Recycling Ltd (MONOLITHOS)83, Vrilissou Str, 11476 Polygono, AthensGreece 7 SINTEF ASStrindveien 4, 7034 TrondheimNorway 8 TECNALIA, Parque Tecnológico de San Sebastián Mikeletegi Pasealekua2 E-20009 Donostia-San Sebastián–GipuzkoaSpain 9 Flemish Institute for Technological Research (VITO)Boeretang 200, 2400 MolBelgium 10 Vienna University of Technology (VUT)Getreidemarkt 9/163, 1060, ViennaAustria
  • Source: Johnson Matthey Technology Review, Volume 65, Issue 1, Jan 2021, p. 127 - 147
  • DOI: https://doi.org/10.1595/205651321X16057842276133
    • Published online: 01 Jan 2021

Abstract

PLATInum group metals Recovery Using Secondary raw materials (PLATIRUS), a European Union (EU) Horizon 2020 project, aims to address the platinum group metal (pgm) supply security within Europe by developing novel and greener pgm recycling processes for autocatalysts, mining and electronic wastes. The initial focus was on laboratory-scale research into ionometallurgical leaching, microwave assisted leaching, solvometallurgical leaching, liquid separation, solid phase separation, electrodeposition, electrochemical process: gas-diffusion electrocrystallisation and selective chlorination. These technologies were evaluated against key performance indicators (KPIs) including recovery, environmental impact and process compatibility; with the highest scoring technologies combining to give the selected PLATIRUS flowsheet comprising microwave assisted leaching, non-conventional liquid-liquid extraction and gas-diffusion electrocrystallisation. Operating in cascade, the PLATIRUS flowsheet processed ~1.3 kg of spent milled autocatalyst and produced 1.2 g palladium, 0.8 g platinum and 0.1 g rhodium in nitrate form with a 92–99% purity. The overall recoveries from feedstock to product were calculated as 46 ± 10%, 32 ± 8% and 27 ± 3% for palladium, platinum and rhodium respectively. The recycled pgm has been manufactured into autocatalysts for validation by end users. This paper aims to be a project overview, an in‐depth technical analysis into each technology is not included. It summarises the most promising technologies explored, the technology evaluation, operation of the selected technologies in cascade, the planned recycled pgm end user validation and the next steps required to ready the technologies for implementation and to further validate their potential.

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/content/journals/10.1595/205651321X16057842276133
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Platinum Group Metals Recovery Using Secondary Raw Materials (PLATIRUS): Project Overview with a Focus on Processing Spent Autocatalyst
Johnson Matthey Technology Review 65, 127 (2021); https://doi.org/10.1595/205651321X16057842276133
/content/journals/10.1595/205651321X16057842276133
/content/journals/10.1595/205651321X16057842276133
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