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Wyszukujesz frazę "TBP" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
New approach for third phase investigation in solvent extraction system
Autorzy:
Borkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/346969.pdf
Data publikacji:
2008
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej
Tematy:
third phase
TBP
nitric acid
dodecane
solvent extraction
Opis:
The phenomenon of third phase formation in different liquid extraction systems is well known for more than 50 years but until now a good mathematical model that could predict the third phase formation has not been developed. The third phase is unwanted in extraction systems because, for example, in nuclear fuel reprocessing it can cause criticality problems. However, the third phase may be a useful tool in other technologies. In this paper a new approach to third phase investigation is proposed. This new approach eliminates the aqueous phase, simplifies the system and gives new insight in the nature the third phase. It is a step forward in understanding of the mechanism governing the formation of third phase. This new approach could quickly provide sufficient data to develop a comprehensive model.
Źródło:
Ars Separatoria Acta; 2008, 6; 31-40
1731-6340
Pojawia się w:
Ars Separatoria Acta
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synergistic solvent extraction of Co(II) and Li(I) from aqueous chloride solutions with mixture of Cyanex 272 and TBP
Autorzy:
Pospiech, B.
Powiązania:
https://bibliotekanauki.pl/articles/110291.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
cobalt(II)
lithium(I)
Cyanex 272
TBP
synergistic extraction
Opis:
In this work, separation of cobalt(II) over lithium(I) ions from aqueous chloride solutions by synergistic solvent extraction (SX) has been studied. A synergistic mixture of commercial extractants such as bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex 272) and tributyl phosphate (TBP) in kerosene was used as a selective extractant. The investigations were first performed to select optimal conditions for the effective separation including pH of the aqueous phase as well as concentration of synergistic mixture. High selective solvent extraction of cobalt(II) over lithium(I) from chloride solution has been achieved by the mixture of 0.1 M Cyanex 272 and 0.05 M TBP in kerosene while efficient Co(II) stripping has been performed by 0.5 M sulphuric acid.
Źródło:
Physicochemical Problems of Mineral Processing; 2016, 52, 1; 353-364
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study of cerium extraction by TBP and TODGA using a rotating diffusion cell
Autorzy:
Bromley, M. A.
Boxall, C.
Powiązania:
https://bibliotekanauki.pl/articles/148471.pdf
Data publikacji:
2015
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
SACSESS
TBP
TODGA
rotating diffusion cell (RDC)
separation
extraction
Opis:
For the study of the coupled interfacial-mass transfer kinetics of, inter alia, TBP, TODGA, CyMe4-BTBP and CyMe4-BTPhen based solvent extraction processes, a new rotating diffusion cell (RDC) apparatus has been established at Lancaster University. RDC studies of Ce(IV)/TBP and Ce(III)/TODGA extraction systems have been undertaken in order to improve the understanding of the chemical and kinetic processes involved. In each case, an interesting dependency on local hydrodynamics at the solution phase boundary with results suggesting that the organic extractant molecules migrate into the aqueous phase in order to capture Ce.
Źródło:
Nukleonika; 2015, 60, No. 4, part 2; 859-864
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of the Chalmers Grouped Actinide Extraction Process
Autorzy:
Halleröd, J.
Ekberg, C.
Löfström-Engdahl, E.
Aneheim, E.
Powiązania:
https://bibliotekanauki.pl/articles/146113.pdf
Data publikacji:
2015
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
BTBP-ligands
DEHBA
GANEX
organic diluents
TBP
solvent extraction
Opis:
Several solvents for Grouped ActiNide EXtraction (GANEX) processes have been investigated at Chalmers University of Technology in recent years. Four different GANEX solvents; cyclo-GANEX (CyMe4- -BTBP, 30 vol.% tri-butyl phosphate (TBP) and cyclohexanone), DEHBA-GANEX (CyMe4-BTBP, 20 vol.% N,N-di-2(ethylhexyl) butyramide (DEHBA) and cyclohexanone), hexanol-GANEX (CyMe4-BTBP, 30 vol.% TBP and hexanol) and FS-13-GANEX (CyMe4-BTBP, 30 vol.% TBP and phenyl trifl uoromethyl sulfone (FS-13)) have been studied and the results are discussed and compared in this work. The cyclohexanone based solvents show fast and high extraction of the actinides but a somewhat poor diluent stability in contact with the acidic aqueous phase. FS-13-GANEX display high separation factors between the actinides and lanthanides and a good radiolytic and hydrolytic stability. However, the distribution ratios of the actinides are lower, compared to the cyclohexanone based solvents. The hexanol-GANEX is a cheap solvent system using a rather stable diluent but the actinide extraction is, however, comparatively low.
Źródło:
Nukleonika; 2015, 60, No. 4, part 2; 829-835
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synergistic extraction of Cr(VI) from Ni(II) and Co(II) by flat sheet supported liquid membranes using TIOA and TBP as carriers
Autorzy:
Eyupoglu, V.
Surucu, A.
Kunduracioglu, A.
Powiązania:
https://bibliotekanauki.pl/articles/778162.pdf
Data publikacji:
2015
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
flat sheet supported liquid membrane
selective extraction of Cr(VI)
TIOA
TBP
synergistic extraction
facilitated mass transfer
Opis:
In present study, the synergistic separation of Cr(VI) has been investigated from synthetic acidic solution containing Cr(VI), Co(II) and Ni(II) by fl at sheet supported liquid membrane (FSSLM) technique using triisooctylamine (TIOA) and tri-n-butyl phosphate (TBP) as carriers. The main goal of the study was based in the exploring of the synergistic effect of TBP on selective extraction of Cr(VI) in presence of Co(II) and Ni(II) ions. The various parameters related with membrane and aqueous solution properties were studied to identify the optimum extraction and stripping conditions of the Cr(VI) through FSSLM. In the optimum conditions, initial mass flux (J0) and separation factors (βCr/Co and βCr/Ni) were obtained as 1.49 x 10-05 (kg/m2.s), 382.2 and 725.3 respectively from aqueous H2SO4 media through Celgard 2500 (Celgard Inc., USA) polymer support. As a result, the considerable synergistic infl uence on selective transport of Cr(VI) through FSSLM using TIOA and TBP as carriers has been identified.
Źródło:
Polish Journal of Chemical Technology; 2015, 17, 2; 34-42
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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