NDLI: Controllable Interfacial Mass Transfer Intensification for Multi-liquid Phase Extraction of Platinum, Palladium and Rhodium from Wasted Auto-Catalysts

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Controllable Interfacial Mass Transfer Intensification for Multi-liquid Phase Extraction of Platinum, Palladium and Rhodium from Wasted Auto-Catalysts

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Controllable Interfacial Mass Transfer Intensification for Multi-liquid Phase Extraction of Platinum, Palladium and Rhodium from Wasted Auto-Catalysts

Content Provider	Springer Nature Link
Author	Huang, Kun Liu, Huizhou
Copyright Year	2012
Abstract	The main purpose of present review article is to summarize our previous efforts to develop a new three-liquid-phase extraction strategy for recovery and recycling of platinum, palladium and rhodium from the hydrochloric acid leach solutions of various wasted auto-catalysts.It was found that Pt, Pd and Rh can be separated and selectively enriched into the three different liquid phases of the proposed three-liquid-phase system (TLPS), respectively. The partitioning behaviors of Pt(IV), Pd(II), Rh(III) are controllable and have a close correlation with the phase-forming behaviours of TLPS. A microphase mass transfer mechanism was proposed to explain the differences in partitioning behaviours of three platinum metal ions. The self-assembly of amphiphlic extractant molecules in aqueous solutions result in the controllable enrichment of target metal ions by those separated microphase aggregates. The differences in interfacial mass transfer of three metals are due to a controllable microscopic interaction of platinum metal ions with the microphase aggregates.The TLPS provide a unique separation medium to control the interphase mass transfer of different metal ions. The separation selectivity of the three platinum metals was improved remarkably by using the three-liquid-phase extraction technique in comparison with the traditional liquid–liquid two phase extractions. The present researches highlight a potential possibility for future industrial application of the multiphase extraction for one-step separation of different target metals from complex mixtures.
Starting Page	619
Ending Page	626
Page Count	8
File Format	PDF
ISSN	18772641
Journal	Waste and Biomass Valorization
Volume Number	4
Issue Number	3
e-ISSN	1877265X
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-10-20
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Three-liquid-phase extraction Platinum metals Spent auto-catalysts Separation Process intensification Engineering Environment Renewable and Green Energy Industrial Pollution Prevention Waste Management/Waste Technology Environmental Engineering/Biotechnology
Content Type	Text
Resource Type	Article
Subject	Waste Management and Disposal Environmental Engineering Renewable Energy, Sustainability and the Environment

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