scholarly journals Application of Ionic Liquids in the Recovery of Platinum Group Metals Typically Encountered in Catalytic Converters: A Review.

ChemSusChem ◽  
2021 ◽  
Author(s):  
Olga Lanaridi ◽  
Michael Schnürch ◽  
Andreas Limbeck ◽  
Katharina Schröder
Keyword(s):  
Ionic Liquids ◽  
Platinum Group Metals ◽  
Catalytic Converters ◽  
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%.

scholarly journals Gold, an alternative to platinum group metals in automobile catalytic converters

Gold Bulletin ◽  
2011 ◽  
Vol 44 (3) ◽  
pp. 145-153 ◽  
Author(s):  
Yanlin Zhang ◽  
Robert W. Cattrall ◽  
Ian D. McKelvie ◽  
Spas D. Kolev
Keyword(s):  
Platinum Group Metals ◽  
Catalytic Converters ◽  
Platinum Group

Collector-metal behaviour in the recovery of platinum-group metals from catalytic converters

2000 ◽  
Vol 109 (1) ◽  
pp. 6-10 ◽  
Author(s):  
M. Benson ◽  
C. R. Bennett ◽  
M. K. Patel ◽  
J. E. Harry ◽  
M. Cross
Keyword(s):  
Platinum Group Metals ◽  
Catalytic Converters ◽  
Platinum Group

scholarly journals A Combined Deep Eutectic Solvent–Ionic Liquid Process for the Extraction and Separation of Platinum Group Metals (Pt, Pd, Rh)

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7204
Author(s):  
Olga Lanaridi ◽  
Sonja Platzer ◽  
Winfried Nischkauer ◽  
Andreas Limbeck ◽  
Michael Schnürch ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Mixed Model ◽  
Deep Eutectic Solvent ◽  
Precious Metals ◽  
Platinum Group Metals ◽  
Environmentally Benign ◽  
Extraction Capacity ◽  
Acidic Solutions ◽  
Extraction And Separation ◽  
Platinum Group

Recovery of platinum group metals from spent materials is becoming increasingly relevant due to the high value of these metals and their progressive depletion. In recent years, there is an increased interest in developing alternative and more environmentally benign processes for the recovery of platinum group metals, in line with the increased focus on a sustainable future. To this end, ionic liquids are increasingly investigated as promising candidates that can replace state-of-the-art approaches. Specifically, phosphonium-based ionic liquids have been extensively investigated for the extraction and separation of platinum group metals. In this paper, we present the extraction capacity of several phosphonium-based ionic liquids for platinum group metals from model deep eutectic solvent-based acidic solutions. The most promising candidates, P66614Cl and P66614B2EHP, which exhibited the ability to extract Pt, Pd, and Rh quantitively from a mixed model solution, were additionally evaluated for their capacity to recover these metals from a spent car catalyst previously leached into a choline-based deep eutectic solvent. Specifically, P66614Cl afforded extraction of the three target precious metals from the leachate, while their partial separation from the interfering Al was also achieved since a significant amount (approx. 80%) remained in the leachate.

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