scholarly journals Solvent extraction fractionation of manganese, cobalt, nickel and lithium using ionic liquids and deep eutectic solvents

2020 ◽  
Vol 156 ◽  
pp. 106512 ◽  
Author(s):  
Guillaume Zante ◽  
Arthur Braun ◽  
Abderrazak Masmoudi ◽  
Rémi Barillon ◽  
Dominique Trébouet ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Solvent Extraction ◽  
Deep Eutectic Solvents ◽  
Cobalt Nickel

scholarly journals Review on Hydrometallurgical Recovery of Metals with Deep Eutectic Solvents

2020 ◽  
Vol 1 (3) ◽  
pp. 238-255
Author(s):  
Guillaume Zante ◽  
Maria Boltoeva
Keyword(s):  
Ionic Liquids ◽  
Solvent Extraction ◽  
Physicochemical Properties ◽  
Large Scale ◽  
Deep Eutectic Solvents ◽  
Selective Leaching ◽  
New Class ◽  
Mineral Acids ◽  
Kinetics Of ◽  
Extraction Of Metals

Deep eutectic solvents (DESs) appeared recently as a new class of green designer solvents. The recovery of metals using hydrometallurgy is of major importance with the growth in metal demand. Several authors used these solvents for the hydrometallurgical recovery of metals from primary and secondary resources, and these studies are reviewed in the present work. Hydrophilic DESs can be used for the leaching of metals and have great potential to replace mineral acids, and even to reduce water consumption. Efficient and selective leaching of metals from minerals or wastes is feasible by using DESs. However, the kinetics of leaching as well as the physicochemical properties of DESs are still limiting their large-scale application. Electrochemical recovery from DES is also possible but deserves further investigation. Finally, the recovery of metals from aqueous solutions using hydrophobic DESs was studied in several works. For the solvent extraction of metals, hydrophobic DESs constitute credible alternative ionic liquids.

scholarly journals Inorganic Synthesis Using Reactions of Ionic Liquids and Deep Eutectic Solvents

2021 ◽  
Author(s):  
Tao Zhang ◽  
Thomas Doert ◽  
Hui Wang ◽  
Suojiang Zhang ◽  
Michael Ruck
Keyword(s):  
Ionic Liquids ◽  
Deep Eutectic Solvents ◽  
Inorganic Synthesis

scholarly journals Ionic liquids and deep eutectic solvents for the recovery of phenolic compounds: effect of ionic liquids structure and process parameters

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12398-12422
Author(s):  
Amir Sada Khan ◽  
Taleb H. Ibrahim ◽  
Nabil Abdel Jabbar ◽  
Mustafa I. Khamis ◽  
Paul Nancarrow ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Phenolic Compounds ◽  
Liquid Phase ◽  
Aqueous Phase ◽  
Process Parameters ◽  
Deep Eutectic Solvents

Extraction of phenol from aqueous phase to ionic liquid phase.

scholarly journals On the Dissolution of Metals in Ionic Liquids 1. Iron, Cobalt, Nickel, Copper, and Zinc

2021 ◽  
Vol 2 (1) ◽  
pp. 63-73
Author(s):  
Jéssica D. S. Vicente ◽  
Domingas C. Miguel ◽  
Afonso M. P. Gonçalves ◽  
Diogo M. Cabrita ◽  
José M. Carretas ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Redox Potential ◽  
Final State ◽  
Iron Cobalt ◽  
Influence Of Temperature ◽  
Dissolution Reaction ◽  
Cobalt Nickel ◽  
Iron Metal ◽  
Copper And Zinc ◽  
Nickel Copper

Ionic liquids are critical reagents for science and technical processes nowadays. Metals are the most used reagents in the industry. It is crucial to have a deeper understanding of how ionic liquids and metals could interact. In this article the interaction of those two families of compounds is accessed. The dissolution (reaction) of metals with ionic liquids is studied, namely the influence of temperature, redox potential, and availability of an oxidant in the process. The final state achieved by the iron metal samples was also addressed by Mössbauer spectroscopy.

Development of an automated yeast-based spectrophotometric method for toxicity screening: Application to ionic liquids, GUMBOS, and deep eutectic solvents

Chemosphere ◽  
2021 ◽  
Vol 277 ◽  
pp. 130227
Author(s):  
Ana M.O. Azevedo ◽  
André G. Vilaranda ◽  
Ana F.D.C. Neves ◽  
Maria João Sousa ◽  
João L.M. Santos ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Spectrophotometric Method ◽  
Deep Eutectic Solvents ◽  
Toxicity Screening

Separation of phenols from oils using deep eutectic solvents and ionic liquids

2020 ◽  
Vol 92 (10) ◽  
pp. 1717-1731
Author(s):  
Yucui Hou ◽  
Zhi Feng ◽  
Jaime Ruben Sossa Cuellar ◽  
Weize Wu
Keyword(s):  
Ionic Liquids ◽  
Phenolic Compounds ◽  
High Efficiency ◽  
Deep Eutectic Solvents ◽  
Environmentally Benign ◽  
Organic Chemical ◽  
Environmental Friendliness ◽  
Oil Mixtures ◽  
Organic Chemical Industry

AbstractPhenolic compounds are important basic materials for the organic chemical industry, such as pesticides, medicines and preservatives. Phenolic compounds can be obtained from biomass, coal and petroleum via pyrolysis and liquefaction, but they are mixtures in oil. The traditional methods to separate phenols from oil using alkaline washing are not environmentally benign. To solve the problems, deep eutectic solvents (DESs) and ionic liquids (ILs) have been developed to separate phenols from oil, which shows high efficiency and environmental friendliness. In this article, we summarized the properties of DESs and ILs and the applications of DESs and ILs in the separation of phenols and oil. There are two ways in which DESs and ILs are used in these applications: (1) DESs formed in situ using different hydrogen bonding acceptors including quaternary ammonium salts, zwitterions, imidazoles and amides; (2) DESs and ILs used as extractants. The effect of water on the separation, mass transfer dynamics in the separation process, removal of neutral oil entrained in DESs, phase diagrams of phenol + oil + extractant during extraction, are also discussed. In the last, we analyze general trends for the separation and evaluate the problematic or challenging aspects in the separation of phenols from oil mixtures.

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