Urszula Domańska
University of KwaZulu-Natal
Analytical chemistryGibbs free energyPhysical chemistryIonic liquidSolubilityActivity coefficientOrganic chemistryInorganic chemistryBinary systemChemistryBenzeneHeptaneCyclohexaneThiopheneSolventEnthalpyMole fractionNon-random two-liquid modelPhase (matter)UNIQUACThermodynamics
406Publications
73H-index
11.9kCitations
Publications 341
Newest
Suitability of a imidazolium ionic liquids (ILs) as solvents in dearomatization and desulfurization in the ternary systems and in a model multicomponent systems has been analyzed. With this aim, ternary liquid-liquid phase equilibrium data (LLE) have been obtained for ternary mixtures of {IL + benzene, or toluene, or thiophene, or 2-butanethiol + hexane}, or {IL + benzene + 2-methylpentane} at T = 298.15 K and ambient pressure, as well as for multicomponent systems –model petrochemical stream {I...
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Abstract null null New methods of metal extraction from “black mass” (BM) from spent lithium-ion batteries have been presented with ionic liquids (ILs), Deep Eutectic Solvents (DESs) and organophosphorous-based acids. The low-temperasture method of extraction of cobalt, nickel, lithium and other metals without pre-leaching of BM with acids have been proposed in comparison with many methods already described in the literature. Extraction has been studied in detail with ILs: methyltrioctylammonium...
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#1Mónia A.R. Martins (University of Aveiro)H-Index: 16
#2Sérgio M. Vilas-Boas (University of Aveiro)H-Index: 4
Last. Simão P. PinhoH-Index: 30
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#1Marta Królikowska (Warsaw University of Technology)H-Index: 22
#2Marek Królikowski (Warsaw University of Technology)H-Index: 27
Last. Urszula Domańska (UKZN: University of KwaZulu-Natal)H-Index: 73
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Experimental and theoretical studies on thermodynamic properties of quinolinium-based ionic liquids (ILs) based on bis(trifluoromethylsulfonyl)imide anion (namely N-butyl-quinoloinium bis(trifluoromethylsulfonyl)imide, [BQuin][NTf2], N-hexylquinoloinium bis(trifluoromethyl-sulfonyl)imide, [HQuin][NTf2], and N-octylquinoloinium bis(trifluoromethyl-sulfonyl)imide, [OQuin][NTf2]) with aromatic sulfur compounds and heptane, as a model compound of fuel were examined in order to assess the applicabili...
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#1Aneta ŁukomskaH-Index: 2
#2Anna WiśniewskaH-Index: 8
Last. Urszula Domańska (UKZN: University of KwaZulu-Natal)H-Index: 73
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Abstract Extraction efficiencies of Co(II) and Zn(II) from aqueous phase with new ionic liquids (ILs) in comparison with already studied in literature ILs, but without addition of acids and at low temperatures are presented. Thus the new, environmental-friendly method of extraction of metal ions is proposed. A novel ammonium ILs, benzyldimethyloctadecylammonium bis(2,4,4-trimethylpentyl)phosphinate [NBz,1,1,18][BTMPP], didecyldimethylammonium saccharinate, [N10,10,1,1][SACH] and didecyldimethyla...
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#1Marcin Durski (UKZN: University of KwaZulu-Natal)H-Index: 3
#2Paramespri Naidoo (UKZN: University of KwaZulu-Natal)H-Index: 22
Last. Urszula Domańska (UKZN: University of KwaZulu-Natal)H-Index: 73
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abstract This work is a continuation of the investigations on desulfurization processes, by assessing the applicability of two ionic liquids (ILs), 1-butyl-1-methylpiperidynium dicyanamide, [BMPIP][DCA] and tri-iso-butylmethylphosphonium tosylate, [Pi4,i4,i4,1][TOS], for the separation of thiophene from octane, or hexadecane. The latter two components are used as model substances of the fuel stream. Experimental liquid-liquid phase equilibrium (LLE) data were obtained for four ternary systems {I...
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#1Urszula Domańska (UKZN: University of KwaZulu-Natal)H-Index: 73
#2Michał Wlazło (Warsaw University of Technology)H-Index: 21
Last. Monika Karpińska (PAN: Polish Academy of Sciences)H-Index: 20
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Abstract Some petroleum processes need the removal of low level aromatic-sulfur and nitrogen compounds for many products, which are extremely important according to the new strict environmental regulations to reduce sulfur and nitrogen content compounds in liquid fuels. Thus the new, alternative solvents such as ionic liquids (ILs) have been proposed. ILs reveal a high selectivity and capacity of extraction of sulfur- and nitrogen-compounds from alkanes with little solvent loss during the proces...
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#1Urszula Domańska (UKZN: University of KwaZulu-Natal)H-Index: 73
#2Marta Królikowska (UKZN: University of KwaZulu-Natal)H-Index: 22
Last. Mikołaj Więckowski (Warsaw University of Technology)H-Index: 5
view all 5 authors...
Abstract Ionic liquids (ILs) are an important new media and one of the most attractive solvents used in extraction and separation processes. This work presents some important physico-chemical properties and topics related to ILs, which were found by us as good extractive solvents for the desulfurization of fuels and for the separation of water/biobutan-1-ol. It consists of the most important series of experimental measurements of density and viscosity of pure ILs and in binary systems with thiop...
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#1Marek Królikowski (UKZN: University of KwaZulu-Natal)H-Index: 27
#2Marta Królikowska (UKZN: University of KwaZulu-Natal)H-Index: 22
Last. Urszula Domańska (UKZN: University of KwaZulu-Natal)H-Index: 73
view all 6 authors...
Abstract In this work, the effect of a series of zwitterionic compounds (ZIs) aqueous solutions on the thermodynamic equilibrium and kinetic conditions of carbon dioxide hydrate formation is investigated. The hydrate dissociation conditions for (CO2 + ZI + water) systems are studied at different concentrations of ZI, viz. (0.10; 0.20, 0.30) mass fraction. The experiment was performed over a temperature range of T = (272–282) K and pressures range of p = (1.27–4.31 MPa) using a high pressure equi...
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