scholarly journals Ionic Liquids Based on the Concept of Melting Point Lowering Due to Ethoxylation

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4034
Author(s):  
Manuel Rothe ◽  
Eva Müller ◽  
Patrick Denk ◽  
Werner Kunz
Keyword(s):  
Ionic Liquids ◽  
Rare Earth ◽  
Melting Point ◽  
Metal Ion ◽  
Rare Earth Metals ◽  
Metal Catalysis ◽  
Alkyl Chains ◽  
Metal Organic ◽  
Surface Active ◽  
The Common

Most of the commonly used Ionic Liquids (ILs) contain bulky organic cations with suitable anions. With our COMPLET (Concept of Melting Point Lowering due to Ethoxylation), we follow a different approach. We use simple, low-toxic, cheap, and commercially available anions of the type Cx(EO)yCH2COO– to liquefy presumably any simple metal ion, independently of its charge. In the simplest case, the cation can be sodium or lithium, but synthesis of Ionic Liquids is also possible with cations of higher valences such as transition or rare earth metals. Anions with longer alkyl chains are surface active and form surface active ionic liquids (SAILs), which combine properties of ionic and nonionic surfactants at room temperature. They show significant structuring even in their pure state, i.e., in the absence of water or any other added solvent. This approach offers new application domains that go far beyond the common real or hypothetical use of classical Ionic Liquids. Possible applications include the separation of rare earth metals, the use as interesting media for metal catalysis, or the synthesis of completely new materials (for example, in analogy to metal organic frameworks).

scholarly journals Ionic Liquids based on the Concept of Melting Point Lowering due to Ethoxylation

2021 ◽  
Author(s):  
Manuel Rothe ◽  
Eva Müller ◽  
Patrick Denk ◽  
Werner Kunz
Keyword(s):  
Ionic Liquids ◽  
Melting Point ◽  
Metal Ion ◽  
Room Temperature ◽  
Nonionic Surfactants ◽  
Rare Earth Metals ◽  
Organic Cations ◽  
Simple Metal ◽  
Alkyl Chains ◽  
Surface Active

Most of the commonly used Ionic Liquids (ILs) contain bulky organic cations with suitable anions. With our COMPLET (Concept of Melting Point Lowering due to Ethoxylation), we follow a different approach. We use simple, low-toxic, cheap and commercially available anions of the type Cx(EO)yCH2COO– to liquefy presumably any simple metal ion, independently of its charge. In the simplest case, the cation can be sodium or lithium, but synthesis of Ionic Liquids is also possible with cations of higher valences such as transition or rare earth metals. Anions with longer alkyl chains are surface active and form surface active ionic liquids (SAILs), which combine properties of ionic and nonionic surfactants at room temperature. They show significant structuring even in their pure state, i.e. in the absence of water or any other added solvent.

scholarly journals Recent Advances in Extraction and Separation of Rare-Earth Metals Using Ionic Liquids

2011 ◽  
Vol 44 (10) ◽  
pp. 679-685 ◽  
Author(s):  
Yuzo Baba ◽  
Fukiko Kubota ◽  
Noriho Kamiya ◽  
Masahiro Goto
Keyword(s):  
Ionic Liquids ◽  
Rare Earth ◽  
Rare Earth Metals ◽  
Extraction And Separation ◽  
Recent Advances

scholarly journals Entropies of Liquid Rare-Earth Metals near the Melting Point

1998 ◽  
Vol 39 (5) ◽  
pp. 551-556 ◽  
Author(s):  
H. Sasajima ◽  
T. Arai ◽  
I. Yokoyama
Keyword(s):  
Rare Earth ◽  
Melting Point ◽  
Rare Earth Metals

scholarly journals Ionic Liquids [M3+][A–]3 with Three‐Valent Cations and Their Possible Use to Easily Separate Rare Earth Metals

2021 ◽  
Author(s):  
Manuel Rothe ◽  
Martin Tress ◽  
Carina Allacher ◽  
Patrick Nuernberger ◽  
Werner Kunz
Keyword(s):  
Ionic Liquids ◽  
Rare Earth ◽  
Rare Earth Metals

A new 2D lanthanum based microporous MOF for efficient synthesis of cyclic carbonates through CO2 fixation

2021 ◽  
Author(s):  
Sabuj Kanti Das ◽  
Anirban Ghosh ◽  
Sudip Bhattacharjee ◽  
Avik Chowdhury ◽  
Partha Mitra ◽  
...  
Keyword(s):  
Rare Earth ◽  
Co2 Fixation ◽  
High Efficiency ◽  
Rare Earth Metals ◽  
Metal Organic Frameworks ◽  
Cyclic Carbonates ◽  
Efficient Synthesis ◽  
Metal Organic ◽  
Fixation Reaction ◽  
Positively Charged

Metal-organic frameworks (MOFs) containing multiple carboxylate and sulfonate linkers together with positively charged rare earth metals can offer new opportunities in heterogeneous catalysis. High efficiency of CO2 fixation reaction at...

STERIC EFFECTS IN THE SYNERGIC EXTRACTION OF THE LANTHANIDES, YTTRIUM, AND SCANDIUM

1963 ◽  
Vol 41 (3) ◽  
pp. 658-666 ◽  
Author(s):  
P. G. Manning
Keyword(s):  
Rare Earth ◽  
Metal Ion ◽  
Equilibrium Constants ◽  
Rare Earth Metals ◽  
Steric Effects ◽  
Organic Species ◽  
Alkyl Groups ◽  
Synergic Extraction ◽  
Carrier Free ◽  
Organic Solutions

From a study of the partitioning of the carrier-free radioisotopes Tm170, Ce144, Eu152/154, Tb160, Lu177, and Y91 between nitric acid and organic solutions containing various proportions of thenoyltrifluoroacetone (HTTA) and dialkyl alkyl phosphonates (S) in odorless kerosene, concentration equilibrium constants (k2) have been computed for the reaction[Formula: see text]where M represents a metal ion, and "w" and "o" are aqueous and organic species respectively.When used in conjunction with the data of Bronaugh and Suttle, the equilibrium constants determined in this study yielded comparative equilibrium constants (k3) for the solvation process [Formula: see text]for the rare-earth metals listed.In the extraction of Sc46, however, the species extracted is dependent on the alkyl groups of the phosphonates, the butyl and 2-ethylhexyl derivatives giving mono- and di-solvates respectively.It is concluded that steric effects are dominant in these synergic systems.

scholarly journals Shear Melting and High Temperature Embrittlement: Theory and Application to Machining Titanium

MRS Advances ◽  
2016 ◽  
Vol 1 (35) ◽  
pp. 2477-2482
Author(s):  
Graeme J Ackland ◽  
Con Healy ◽  
Sascha Koch ◽  
Florian Brunke ◽  
Carsten Siemers
Keyword(s):  
Mechanical Properties ◽  
Rare Earth ◽  
High Temperature ◽  
Melting Point ◽  
Shear Band ◽  
Titanium Alloys ◽  
Rare Earth Metals ◽  
Shear Bands ◽  
Alloy Matrix ◽  
Dislocation Mechanism

ABSTRACTWe show that alloying with rare earth metals (REMs) can dramatically improve the machineability of a range of titanium alloys, even though the REM is not incorporated in the alloy matrix. The mechanism for this is that under cutting, shear bands are formed within which the nano-precipitates of REM are shear mixed. This lowers the melting point such that the mechanism of deformation changes from dislocation mechanism to localised amorphisation and shear softening. The material then fractures along the thin, amorphous shear-band. Outside the shear band, the REM remains as precipitates. The new alloys have similar mechanical properties and biocompatibility to conventional materials.

Electrodeposition of rare earth metals Y, Gd, Yb in ionic liquids

2009 ◽  
Vol 84 (1) ◽  
pp. 104-108 ◽  
Author(s):  
L. M. Glukhov ◽  
A. A. Greish ◽  
L. M. Kustov
Keyword(s):  
Ionic Liquids ◽  
Rare Earth ◽  
Rare Earth Metals
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