scholarly journals Recovery of platinum-group metals (PGMs) from spent automotive catalysts: Part I: The primary and secondary sources of PGMs and their use

2014 ◽  
Vol 7 (1) ◽  
pp. 9-21
Author(s):  
Mile Dimitrijevic ◽  
Snezana Milic ◽  
Sladjana Alagic ◽  
Ana Radojevic
Keyword(s):  
Platinum Group Metals ◽  
Automotive Catalysts ◽  
Secondary Sources ◽  
Platinum Group

Biorecovery of Platinum Group Metals from Secondary Sources

2007 ◽  
pp. 651-654 ◽  
Author(s):  
A.J. Murray ◽  
I.P. Mikheenko ◽  
Elzbieta Goralska ◽  
N.A. Rowson ◽  
L.E. Macaskie
Keyword(s):  
Platinum Group Metals ◽  
Secondary Sources ◽  
Platinum Group

scholarly journals Effective Recycling of Spent Auto Catalytic Converters by Using Electrochlorination Method

2018 ◽  
Vol 207 ◽  
pp. 03024 ◽  
Author(s):  
Nikolay Samotaev ◽  
Andrey Antonov ◽  
Grigory Tsarev ◽  
Andreas Tietz
Keyword(s):  
Platinum Group Metals ◽  
Catalytic Converters ◽  
Industrial Practice ◽  
Automotive Catalysts ◽  
Modern Methods ◽  
Recycling Technology ◽  
Platinum Group

Modern methods of recycling spent automotive catalysts and their main disadvantages in industrial practice are considered. The electrochlorination method is proposed as the basis of the platinum-group metals (PGM) recycling technology. As the test of proposed technology a few tons of spent automotive catalysts were processed. The results of the work on the extraction of platinum, palladium, rhodium are analyzed. The extraction rates during experiments were reached for Pt - 97%, Pd - 97% and Rh - 80%.

Leaching of platinum group metals from spent automotive catalysts using organic acids

2020 ◽  
Vol 159 ◽  
pp. 106634
Author(s):  
Jessica de Oliveira Demarco ◽  
Jéssica Stefanello Cadore ◽  
Hugo Marcelo Veit ◽  
Heloísa Bremm Madalosso ◽  
Eduardo Hiromitsu Tanabe ◽  
...  
Keyword(s):  
Organic Acids ◽  
Platinum Group Metals ◽  
Automotive Catalysts ◽  
Platinum Group

Biorecovery of Platinum Group Metals from Secondary Sources

2007 ◽  
Vol 20-21 ◽  
pp. 651-654 ◽  
Author(s):  
Angela J. Murray ◽  
I.P. Mikheenko ◽  
Elzbieta Goralska ◽  
N.A. Rowson ◽  
Lynne E. Macaskie
Keyword(s):  
Catalytic Activity ◽  
Precious Metals ◽  
Bacterial Biomass ◽  
Platinum Group Metals ◽  
X Ray ◽  
Secondary Sources ◽  
Price Increases ◽  
Valuable Product ◽  
Platinum Group

Since 1998 demand for the platinum group metals (PGM) has exceeded supply resulting in large price increases. Undersupply, combined with rising costs prompts environmentally friendly recycling technologies. Leachates containing PGM were produced from secondary waste sources using microwave leaching technology with the aim of recovering precious metals using bacterial biomass. Previous studies showed that metallised biomass exhibits catalytic activity; hence metal is not only recovered but can be converted into a valuable product. Cells of Escherichia coli MC4100 that had been pre-metallised with Pt were more effective at reducing PGM from the leachates. The solid recovered from the leachate onto the bacteria was characterised using X-ray Powder Diffraction (XRD) and Energy Dispersive X-ray Microanalysis (EDX). Metallised biomass was tested for catalytic activity (reduction of Cr(VI) to Cr(III)) to compare the ‘quality’ of polymetallic bacterial-based catalysts versus counterparts made from single and mixed metal model solutions.

scholarly journals Solvometallurgical Recovery of Platinum Group Metals from Spent Automotive Catalysts

2020 ◽  
Author(s):  
Viet Tu Nguyen ◽  
Sofía Riaño ◽  
Emir Aktan ◽  
Clio Deferm ◽  
Jan Fransaer ◽  
...  
Keyword(s):  
Platinum Group Metals ◽  
Automotive Catalysts ◽  
Platinum Group
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