scholarly journals Separation of precious metals by split-anion extraction using water-saturated ionic liquids

2020 ◽  
Vol 22 (23) ◽  
pp. 8375-8388
Author(s):  
Viet Tu Nguyen ◽  
Sofía Riaño ◽  
Koen Binnemans
Keyword(s):  
Ionic Liquids ◽  
Precious Metals ◽  
Water Saturated ◽  
Selective Process

Split-anion extraction with water-saturated ionic liquids is a benign, efficient and selective process for recovery of precious metals from chloride media.

scholarly journals Densities, viscosities and derived thermophysical properties of water-saturated imidazolium-based ionic liquids

2016 ◽  
Vol 407 ◽  
pp. 188-196 ◽  
Author(s):  
Mónia A.R. Martins ◽  
Catarina M.S.S. Neves ◽  
Kiki A. Kurnia ◽  
Pedro J. Carvalho ◽  
Marisa A.A. Rocha ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Thermophysical Properties ◽  
Water Saturated

scholarly journals Density and viscosity of several pure and water-saturated ionic liquids

2006 ◽  
Vol 8 (2) ◽  
pp. 172-180 ◽  
Author(s):  
J. Jacquemin ◽  
P. Husson ◽  
A. A. H. Padua ◽  
V. Majer
Keyword(s):  
Ionic Liquids ◽  
Water Saturated

Thermophysical properties of pure and water-saturated tetradecyltrihexylphosphonium-based ionic liquids

2011 ◽  
Vol 43 (6) ◽  
pp. 948-957 ◽  
Author(s):  
Catarina M.S.S. Neves ◽  
Pedro J. Carvalho ◽  
Mara G. Freire ◽  
João A.P. Coutinho
Keyword(s):  
Ionic Liquids ◽  
Thermophysical Properties ◽  
Water Saturated

Structural and Positional Isomerism Influence in the Physical Properties of Pyridinium NTf2-Based Ionic Liquids: Pure and Water-Saturated Mixtures†

2010 ◽  
Vol 55 (10) ◽  
pp. 4514-4520 ◽  
Author(s):  
Filipe S. Oliveira ◽  
Mara G. Freire ◽  
Pedro J. Carvalho ◽  
João A. P. Coutinho ◽  
José N. Canongia Lopes ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Physical Properties ◽  
Positional Isomerism ◽  
Water Saturated

scholarly journals Performance of Ionic Liquid-Water Mixtures in an Acetone Cooling Application

2021 ◽  
Vol 13 (5) ◽  
pp. 2949
Author(s):  
Abdulaziz El-Sinawi ◽  
Karthik Silaipillayarputhur ◽  
Tawfiq Al-Mughanam ◽  
Christopher Hardacre
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Water ◽  
Liquid Mixtures ◽  
Vapor Pressures ◽  
Heat Transfer Fluids ◽  
Process Plant ◽  
Cooling Media ◽  
Double Pipe ◽  
Water Saturated

In this work, the performance of selected ionic liquid-water mixtures was investigated for an acetone cooling application in a process plant using a double pipe heat exchanger. Cooling media such as river water and ionic liquid-water mixtures were compared, specifically water-saturated quaternary phosphonium-based carboxylate ionic liquids were considered in this work. Ionic liquids generally have high thermal stability, resist degradation, and provide higher temperatures at low vapor pressures and for these reasons, ionic liquids can be a good substitute for conventional heat transfer fluids. At each condition, the performance of the ionic liquid mixture was compared with that of water. For the designated cooling application, the performance of water was much better than the ionic liquid mixtures.

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.

Effective Hydrogenation of CO2 to Formate Catalyzed by Ionic Liquids Modified Acetate-Cu

2021 ◽  
Author(s):  
Jinling Hu ◽  
Jia Liu ◽  
Chenfei Yao ◽  
Lei Zhou ◽  
You-Ting Wu ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Precious Metals ◽  
Hydrogenation Of Co2

Hydrogenation of CO2 is full of challenge, especially when non precious metals are used as catalysts. Herein, we reported an effective hydrogenation of CO2 to formate catalyzed by imidazole ionic...

scholarly journals Dissolution behavior of precious metals and selective palladium leaching from spent automotive catalysts by trihalide ionic liquids

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10110-10120
Author(s):  
Arne Van den Bossche ◽  
Nerea Rodriguez Rodriguez ◽  
Sofía Riaño ◽  
Wim Dehaen ◽  
Koen Binnemans
Keyword(s):  
Ionic Liquids ◽  
Precious Metals ◽  
Dissolution Behavior ◽  
Automotive Catalysts ◽  
Automotive Catalyst ◽  
Ceramic Support

Trichloride ionic liquids were used to increase the leaching selectivity of palladium from spent automotive catalyst with a ceramic support.

scholarly journals The application of deep eutectic solvent ionic liquids for environmentally-friendly dissolution and recovery of precious metals

2016 ◽  
Vol 87 ◽  
pp. 18-24 ◽  
Author(s):  
Gawen R.T. Jenkin ◽  
Ahmed Z.M. Al-Bassam ◽  
Robert C. Harris ◽  
Andrew P. Abbott ◽  
Daniel J. Smith ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Deep Eutectic Solvent ◽  
Precious Metals ◽  
Environmentally Friendly
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