Tuesday, October 2, 2012

A Few More Ionic Liquids

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“I think it's liquid aggravation that circulates through his veins, and not regular blood” -- Charles Dickens (English novelist, 1812-1870)

Here are four more articles on ionic
liquids, all available on the Web at no charge …

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Separation and Purification Technology (2012)
Preparation and characterization of ionic liquid polymer microspheres [PEEKWC/DMF/CYPHOS IL 101] using the phase-inversion technique
D. Shanthana Lakshmi a, A. Figoli a,, G. Fiorani b, M. Carraro b, L. Giorno a, E. Drioli a
a Institute on Membrane Technology (ITM-CNR), c/o University of Calabria, Via P. Bucci, 17/c, I-87030 Rende, CS, Italy
b ITM CNR, Section of Padova and Department of Chemical Sciences, University of Padova, via Marzolo, 1, 35131 Padova, Italy
Abstract
The membrane process concept coupled with phase inversion technique has been successfully applied for the first time for the preparation of ionic liquid (IL) encapsulated microspheres using polyetheretherketone with card group (PEEKWC), trihexyl(tetradecyl)phosphonium chloride[CYPHOS IL 101] in N,Ndimethylformamide (DMF) as dispersing phase and dodecane, ethanol and water as continuous phases. The technique yields porous, spongy, spheres with smooth surface and diameter around 1000 lm, with morphology and chemical composition strongly affected by preparative conditions. IL loading capacity and subsequent surface topography has been investigated using optical microscopy, FT-IR, SEM, EDX, TGA and SDT.
Free Full Text Source: http://www.researchgate.net/publication/221966813_Preparation_and_characterization_of_ionic_liquid_polymer_microspheres_PEEKWCDMFCYPHOS_IL_101_using_the_phase-inversion_techniqueD._Shanthana_Lakshmi_a_A._Figoli_a_G._Fiorani_b_M._Carraro_b_L._Giorno_a_E._Drioli_a/file/f2faf4f75700495fb6.pdf

International Workshop on Ionic Liquids– Seeds for New Engineering Applications, 2-3 February 2012, Lisbon, Portugal
Ionic Liquids As Thermal Fluids: Feasibility Study Of Itsapplication On A Heat Exchanger Of A Plastic Production Machine
T.I.L. Antunes 1, L.M.L. Mendes 1, C. A. Nieto de Castro 2,3 and V. M. B. Nunes 1,3*
valentim@ipt.pt
1 Escola Superior de Tecnologia, Instituto Politécnico de Tomar, Campus da Quinta doContador, 2300-313 Tomar, Portugal
2 Departamento de Química e Bioquímica Faculdade de Ciências da Universidade deLisboa, Campo Grande, 1749-016 Lisboa, Portugal
3 Centro de Ciências Moleculares e Materiais, Faculdade de Ciências - Universidade deLisboa, Campo Grande, 1749-016 Lisboa, Portugal*
Introduction:
Authors evaluate the viability of replacing the conventional thermal oil used in a heat exchanger of a plastic production machine, by an ionic liquid of known properties. Thermal fluids have many industrial applications covering all aspects from unit operations to chemical processes.
Free Full Text Source: http://scholar.googleusercontent.com/scholar?q=cache:cHJLqtoMwzYJ:scholar.google.com/+%22ionic+liquids%22++AND+(refinery+OR+refining+OR+hydrocarbon+OR+petroleum+OR+oil)&hl=en&as_sdt=0,14&as_ylo=2012&as_yhi=2012

PATENT
Process For Removing Metals From Hydrocarbons
Pub. No.:    WO/2012/046057   
International Application No.:    PCT/GB2011/051906
Publication Date:  12.04.2012
Applicants: 
The Queen's University Of Belfast [GB/GB]; University Road Belfast Antrim BT7 1NN (GB)
Inventors: 
ABAI, Mahpuzah; (GB).
ATKINS, Martin Philip; (GB).
CHEUN, Kuah Yong; (GB).
HOLBREY, John; (GB).
NOCKEMANN, Peter; (GB).
SEDDON, Ken; (GB).
SRINIVASAN, Geetha; (GB).
ZOU, Yiran; (GB) 
Abstract:  
The present invention relates to a process for the removal of mercury from a mercury- containing hydrocarbon fluid feed using specifically selected ionic liquids comprising, contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula[Cat+][M+][X-] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.
Free Full Text Source: http://patentscope.wipo.int/search/en/WO2012046057

Bull. Korean Chem. Soc. 2012, Vol. 33, No. 7 2325
Equimolar Carbon Dioxide Absorption by Ether Functionalized Imidazolium Ionic Liquids
Pankaj Sharma, Sang Do Park,† Ki Tae Park, Soon Kwan Jeong, Sung Chan Nam, and Il Hyun Baek*
ihbaek@kier.re.kr
Greenhouse Gas Research Center, Korea Institute of Energy Research.
†Korea Carbon Dioxide Capture & Sequestration R&D Center, Daejeon 305-343, Korea
Abstract
A series [C3Omim][X] of imidazolium cation-based ILs, with ether functional group on the alkyl side-chain were synthesized and structure of the materials were confirmed by various techniques like 1H, 13C NMR spectroscopy, MS-ESI, FTIR spectroscopy and EA. More specifically, the influence of changing the anion with same cation is carried out. The absorption capacity of CO2 for ILs were evaluated at 30 and 50 ºC at ambient pressure (0-1.6 bar). Ether functionalized ILs shows significantly high absorption capacity for CO2. In general, the CO2 absorption capacity of ILs increased with a rise in pressure and decreased when temperature was raised. The obtained results showed that absorption capacity reached about 0.9 mol CO2 per mol of IL at 30 ºC. The most probable mechanism of interaction of CO2 with ILs were investigated using FTIR spectroscopy, 13C NMR spectroscopy and result shows that the absorption of CO2 in ether functionalized ILs is a chemical process. The CO2 absorption results and detailed study indicates the predominance of 1:1 mechanism, where the CO2 reacts with one IL to form a carbamic acid. The CO2 absorption capacity of ILs for different anions follows the trend: BF4 < DCA < PF6 < TfO < Tf2N. Moreover, the as-synthesized ILs is selective, thermally stable, long life operational and can be recycled at a temperature of 70 ºC or under vacuum and can be used repeatedly.
Free Full Text Source: http://newjournal.kcsnet.or.kr/main/j_search/j_download.htm?code=B120737

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