scholarly journals Synergistic Solvent Extraction of Alkali Metal Picrates by Crown Ethers

1981 ◽  
Vol 54 (2) ◽  
pp. 526-529 ◽  
Author(s):  
Yasuyuki Takeda
1997 ◽  
Vol 15 (1) ◽  
pp. 49-64 ◽  
Author(s):  
M.L.P. Reddy ◽  
R. Luxmi Varma ◽  
T.R. Ramamohan ◽  
A.D. Damodaran ◽  
Punam Thakur ◽  
...  

1995 ◽  
Vol 13 (6) ◽  
pp. 983-995 ◽  
Author(s):  
Matthew G. Hankins ◽  
Richard A. Bartsch∗ ◽  
Uriel Olsher

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.


Sign in / Sign up

Export Citation Format

Share Document