Results 141 to 150 of about 3,039 (178)

Extraction and separation of60Co and65Zn halides from H2SO4 with TBP and amberlite LA-2

Journal of Radioanalytical Chemistry, 1974
A systematic study is presented on the extraction of60Co and65Zn bromides and chlorides from H2SO4 with tri-n-butyl phosphate (TBP) and Amberlite LA-2. It has been found that the presence of a little HBr or HCl enhances the extraction of the two isotopes with both solvents.
A. Alian, A. Haggag, W. Sanad
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Solvent extraction equilibrium of gallium from hydrochloric acid solutions by Amberlite LA‐2

Journal of Chemical Technology & Biotechnology, 1994
AbstractThe extraction of Ga(III) from chloride solutions by Amberlite LA‐2 dissolved in kerosene at 25°C has been investigated. The effects of the concentrations of gallium, chloride and Amberlite LA‐2, and pH, on the equilibrium are reported. Extracted complexes are formulated using a slope analysis of the equilibrium data.
Beatriz Gutiérrez, Carmen Pazos, José Coca   +2 more
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Facilitated Pertraction of p-Aminobenzoic Acid with Amberlite LA-2 in Presence of 1-Octanol

Separation Science and Technology, 2010
p-Aminobenzoic acid has been facilitated pertracted with Amberlite LA-2 dissolved in dichloromethane, using a U-shaped pertraction cell which allows obtaining the free liquid membrane. The pertraction has been a carrier out in the presence of 1-octanol added in the liquid membrane.
Lenuţa Kloetzer, Anca-Irina Galaction, Dan Cascaval   +2 more
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Synergic Extraction of Folic Acid with Di(2-ethylhexyl) Phosphoric Acid and Amberlite LA-2

Separation Science and Technology, 2012
The influences of extractants concentrations and solvent polarity on the efficiency of folic acid separation by synergic extraction with Amberlite LA-2 and di(2-ethylhexyl) phosphoric acid (D2EHPA) mixture have been analyzed. The results indicated the formation of an interfacial compound which includes one molecule of folic acid and one of D2EHPA, the ...
D. Caşcaval, A.-I. Galaction, L. Kloetzer   +2 more
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Equilibrium and kinetics of Zn(II) bromide extraction with Amberlite LA-2 and methyl isobutyl ketone

Journal of Radioanalytical and Nuclear Chemistry, 2002
The rates of extraction of Zn(II) from hydrobromic acid solutions into benzene solutions of the liquid anion exchanger Amberlite LA-2 and those into methyl isobutyl ketone (MIBK) have been investigated. The distribution equilibria of this system have been also studied.
W. A. Sanad, N. A. Tadros, A. A. Abdel-Fattah   +2 more
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Recovery of zinc from pickling baths with amberlite LA‐2. Influence of modifier on the extraction equilibrium

Chemical Engineering & Technology, 1994
AbstractThe extraction of zinc chloride by Amberlite LA‐2, a long chain secondary alkylamine, dissolved in Shellsol K, a naphthenic solvent, has been studied at room temperature. Isodecanol was used as modifier. The aqueous phases were chloride solutions of Zn(II) and Fe(II) in the concentration range commonly encountered in pickling baths, viz.
Marta San Martín, Hans‐Jörg Bart
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Extraction of Gibberellic Acid from Aqueous Solution by Amberlite LA-2 in Different Diluents

Journal of Chemical & Engineering Data, 2012
The (3S,3aS,4S,4aS,7S,9aR,9bR,12S)-7,12-dihydroxy-3-methyl-6-methylene-2-oxoperhydro-4a,7-methano-9b,3-propenoazuleno[1,2-b]furan-4-carboxylic acid (Gibberellic acid (GA)) extraction from aqueous solution by Amberlite La-2 in different diluents (isoamyl alcohol, or octan-1-ol, or decan-1-ol) was studied.
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Investigation on interfacial reaction kinetics of penicillin G and Amberlite LA-2 from membrane flux measurements

Journal of Membrane Science, 1998
Abstract Interfacial reaction kinetics for reactive extraction of penicillin G from aqueous solutions by Amberlite LA-2 in a mixture of kerosene and n -butyl acetate were studied using a microporous membrane-based stirred cell. This operation gave intrinsic rate equations for formation and dissociation of the Amberlite LA-2 complex of penicillin G ...
Ruey-Shin Juang, Yuh-Sheng Lin
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Kinetics of penicillin G extraction by Amberlite LA-2 as a mobile carrier in a constant-interface-area cell

The Chemical Engineering Journal and the Biochemical Engineering Journal, 1995
Abstract The kinetics of penicillin G extraction by Amberlite LA-2 dissolved in kerosene in a constant-interface-area cell was studied. The effects of agitation speed, interfacial area between two immiscible solutions, pH of aqueous phase, initial carrier concentration and initial penicillin G concentration on the initial flux of penicillin G were ...
Shih Sheng Wang, Chau Jen Lee
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Penicillin G extraction by amberlite LA‐2—a study of interfacial reaction kinetics by interfacial tension measurements

Journal of Chemical Technology & Biotechnology, 1995
AbstractThe concentration of reactants at an interface cannot be determined directly. The concentration at the interface has been estimated by measuring the interfacial tension at the interface between two immiscible solutions. An aqueous phase, de‐ionised water containing penicillin G, and an organic phase containing amberlite LA‐2 were used as a ...
Chau Jen Lee, Shih Sheng Wang
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