scholarly journals Solvent Extraction of Sr2+ and Cs+ Based on Hydrophobic Protic Ionic Liquids

2007 ◽  
Vol 62 (5-6) ◽  
pp. 281-291 ◽  
Author(s):  
Huimin Luo ◽  
Miao Yu ◽  
Sheng Dai
Keyword(s):  
Ionic Liquids ◽  
Solvent Extraction ◽  
Room Temperature ◽  
Extraction Efficiency ◽  
Synthesis Method ◽  
High Yield ◽  
Protic Ionic Liquids ◽  
Separation Processes ◽  
One Pot ◽  
Solvent Systems

A series of new hydrophobic and protic alkylammonium ionic liquids with bis(trifluoromethylsulfonyl) imide or bis(perfluoroethylsulfonyl)imide as conjugated anions was synthesized in a one-pot reaction with a high yield. In essence our synthesis method involves the combination of neutralization and metathesis reactions. Some of these hydrophobic and protic ionic liquids were liquids at room temperature and therefore investigated as new extraction media for separation of Sr2+ and Cs+ from aqueous solutions. An excellent extraction efficiency was found for some of these ionic liquids using dicyclohexano-18-crown-6 and calix[4]arene-bis(tert-octylbenzo-crown-6) as extractants. The observed enhancement in the extraction efficiency can be attributed to the greater hydrophilicity of the cations of the protic ionic liquids. The application of the protic ionic liquids as new solvent systems for solvent extraction opens up a new avenue in searching for simple and efficient ionic liquids for tailored separation processes.

scholarly journals Ball-Milling Promoted Monobromination Reactions: One-pot Regioselective Synthesis of Aryl Bromides and α-Bromoketones by NBS and Recyclable MCM-41-SO3H at Room Temperature

SynOpen ◽  
2017 ◽  
Vol 01 (01) ◽  
pp. 0143-0146
Author(s):  
N. Ghanbari ◽  
H. Ghafuri ◽  
H. Zand ◽  
M. Eslami
Keyword(s):  
Ionic Liquids ◽  
Ball Milling ◽  
Reaction Temperature ◽  
Room Temperature ◽  
Reaction Times ◽  
Solvent Free ◽  
High Yield ◽  
One Pot ◽  
Aryl Bromides ◽  
Mcm 41

An effective approach to monobromination reactions utilizing room temperature ball-milling is introduced for the synthesis of aryl bromides and bromoketones with N-bromosuccinimide (NBS) and MCM-41-SO3H. Advantages of this technique are short reaction times and high regioselectivity. In contrast to other techniques using microwaves, ultrasound, or ionic liquids, handling of sensitive materials is possible and furthermore, this method has advantages over other solvent-free techniques that require a higher reaction temperature for high yield of products.

One-Pot Synthesis of Ion-Containing CO2-Based Polycarbonates Using Protic Ionic Liquids as Chain Transfer Agents

2018 ◽  
Vol 51 (22) ◽  
pp. 9122-9130 ◽  
Author(s):  
Zhaohe Huang ◽  
Yanyan Wang ◽  
Na Zhang ◽  
Luhong Zhang ◽  
Donald J. Darensbourg
Keyword(s):  
Ionic Liquids ◽  
Chain Transfer ◽  
Protic Ionic Liquids ◽  
One Pot ◽  
One Pot Synthesis ◽  
Transfer Agents

An efficient multicomponent, one-pot synthesis of Betti bases catalyzed by cerium (IV) ammonium nitrate (CAN) at ambient temperature

2016 ◽  
Vol 5 (4) ◽  
Author(s):  
Ramadan Ahmed Mekheimer ◽  
Abdullah Mohamed Asiri ◽  
Afaf Mohamed Abdel Hameed ◽  
Reham R. Awed ◽  
Kamal Usef Sadek
Keyword(s):  
Ambient Temperature ◽  
Environmental Pollution ◽  
Ammonium Nitrate ◽  
Room Temperature ◽  
Catalytic Amount ◽  
High Yield ◽  
Reaction Conditions ◽  
One Pot ◽  
Work Up ◽  
Cerium Iv Ammonium Nitrate

AbstractStarting from readily available 2-naphthol, aldehydes, aryl and alkylamines, a variety of Betti bases were efficiently synthesized utilizing a catalytic amount of cerium (IV) ammonium nitrate (CAN) at room temperature. This protocol has advantages of high yield, mild reaction conditions, no environmental pollution, diversity of reactants and simple work up procedure.

Diglycolamide-Based Solvent Systems in Room Temperature Ionic Liquids for Actinide Ion Extraction: A Review

2015 ◽  
Vol 10 (2) ◽  
pp. 135-145 ◽  
Author(s):  
Prasanta Kumar Mohapatra
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Metal Ion ◽  
Room Temperature ◽  
Review Article ◽  
Metal Ion Extraction ◽  
Ion Extraction ◽  
Radiolytic Stability ◽  
Solvent Systems ◽  
Functionalized Ligands

Abstract This review article gives a comprehensive account of the extraction of actinide ions using room temperature ionic liquid-based solvent systems containing diglycolamide (DGA) or functionalized DGA extractants. These extractants include multiple DGA-functionalized ligands such as tripodal DGA (T-DGA) and DGA-functionalized calix [4]arenes (C4DGA). Apart from metal ion extraction behaviour, other important features of the ionic liquid-based solvent systems such as separation behaviour, luminescence spectroscopic results, thermodynamics of extraction and radiolytic stability of the ionic liquid-based solvents are also reviewed. Results from studies on DGA-functionalized task-specific ionic liquids (TSIL) are also included in this review article.

High throughput approach to investigating ternary solvents of aqueous non-stoichiometric protic ionic liquids

2019 ◽  
Vol 21 (13) ◽  
pp. 6810-6827 ◽  
Author(s):  
Dilek Yalcin ◽  
Calum J. Drummond ◽  
Tamar L. Greaves
Keyword(s):  
Surface Tension ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
High Throughput ◽  
Self Assembly ◽  
Protic Ionic Liquids ◽  
Systematic Data ◽  
Solvent Systems ◽  
Compositional Space

High throughput methods were used to investigate ionic liquid containing solutions to provide systematic data of a broad compositional space. We have principally focused on the surface tension, apparent pH and liquid nanostructure to identify potential self-assembly and protein stabilizing ability of solvent systems.

scholarly journals Nanoscale CaF2 doped with Eu3+ and Tb3+ through fluorolytic sol–gel synthesis

2014 ◽  
Vol 2 (40) ◽  
pp. 8607-8613 ◽  
Author(s):  
Benjamin Ritter ◽  
Thoralf Krahl ◽  
Knut Rurack ◽  
Erhard Kemnitz
Keyword(s):  
Room Temperature ◽  
Sol Gel ◽  
Synthesis Method ◽  
One Pot ◽  
One Pot Synthesis ◽  
Sol Gel Synthesis

Easy upscaleable one-pot synthesis method at room temperature for ultra small sized Eu3+- and Tb3+-doped CaF2 nanoparticles.

Simple one-pot process for the bioresolution of tertiary amino ester protic ionic liquids using subtilisin

2009 ◽  
Vol 20 (18) ◽  
pp. 2112-2116 ◽  
Author(s):  
Maude Brossat ◽  
Thomas S. Moody ◽  
Stephen J.C. Taylor ◽  
Jonathan W. Wiffen
Keyword(s):  
Ionic Liquids ◽  
Amino Ester ◽  
Protic Ionic Liquids ◽  
One Pot ◽  
Tertiary Amino

Efficient Synthesis of Ellagic Acid Salts Using Distillable Ionic Liquids

2011 ◽  
Vol 64 (12) ◽  
pp. 1624 ◽  
Author(s):  
Shahana A. Chowdhury ◽  
Pamela M. Dean ◽  
R. Vijayaraghavan ◽  
D. R. MacFarlane
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ellagic Acid ◽  
Room Temperature ◽  
Acid Salt ◽  
Ethyl Gallate ◽  
Efficient Synthesis ◽  
One Pot ◽  
One Pot Synthesis ◽  
Acid Salts

A direct, one pot synthesis of an ellagic acid salt was achieved at room temperature by dimerization of ethyl gallate using N,N-dimethylammonium N′,N′-dimethylcarbamate, a distillable ionic liquid, as solvent.

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