SYNERGISTIC SOLVENT EXTRACTION OF TRIVALENT LANTHANIDES WITH MIXTURES OF 3-PHENYL-4-BENZOYL-5-ISOXAZOLONE AND CROWN ETHERS

1997 ◽  
Vol 15 (1) ◽  
pp. 49-64 ◽  
Author(s):  
M.L.P. Reddy ◽  
R. Luxmi Varma ◽  
T.R. Ramamohan ◽  
A.D. Damodaran ◽  
Punam Thakur ◽  
...  
1994 ◽  
Vol 12 (3) ◽  
pp. 633-650 ◽  
Author(s):  
P.B. Santhi ◽  
M.L.P. Reddy* ◽  
T.R. Ramamohan ◽  
A.D. Damodaran ◽  
J.N. Mathur ◽  
...  

2007 ◽  
Vol 95 (12) ◽  
Author(s):  
Moazzaz Ali Rizvi ◽  
Akbar Ali ◽  
Mohammad Saeed Iqbal

SummaryThe synergistic solvent extraction of trivalent lanthanides such as Ce(III), Tb(III) and Lu(III) has been studied with a mixture of hexafluoroacetylacetone (HHFA) acting as an acidic chelating agent and triphenylphosphine oxide (TPPO) as a neutral ligand in benzene from aqueous solution of pH 2.5 having ionic strength 0.01 mol dm


1996 ◽  
Vol 29 (1) ◽  
pp. 187-190
Author(s):  
S. Sujatha ◽  
M. L. P. Reddy ◽  
R. Luxmi Varma ◽  
T. R. Ramamohan ◽  
T. Prasada Rao ◽  
...  

2008 ◽  
Vol 62 (2) ◽  
Author(s):  
Maria Petrova ◽  
Ivan Dukov

AbstractSynergistic solvent extraction of 14 lanthanides with mixtures of 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (HP) and the crown ethers (S), 18-crown-6, benzo-18-crown-6 or dibenzo-18-crown-6 from an aqueous chloride medium with the constant ionic strength of 0.1 mol dm−3 was investigated using benzene as a diluent. The composition of the species extracted was determined as LnP3 · S. The addition of a crown ether to the chelating extractant produced rather significant synergistic effects. On basis of experimental data, values of equilibrium constants, synergistic coefficients, and separation factors were calculated.


Author(s):  
Diana Laura Gómez‐Sánchez ◽  
Hikaru Koga ◽  
Yonggu Kim ◽  
Mauricio Cordova Udaeta ◽  
Gjergj Dodbiba

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