Journal
RUSSIAN CHEMICAL BULLETIN
Volume 70, Issue 12, Pages 2416-2421Publisher
SPRINGER
DOI: 10.1007/s11172-021-3361-6
Keywords
1; 3; 5-tris(2-diphenylphosphoryl-4-ethylphenoxymethyl)benzene; 4-benzoyl-5-methyl-2-phenyl-3-pyrazolone; lanthanides(III); extraction; synergism
Categories
Funding
- Institute of Physiologically Active Compounds, Russian Academy of Sciences [0090-2019-0008]
- Russian Foundation for Basic Research [18-29-24069]
- Russian Science Foundation [19-13-00294]
- Russian Science Foundation [19-13-00294] Funding Source: Russian Science Foundation
Ask authors/readers for more resources
A new phosphoryl-containing tripodand compound was synthesized and studied for its efficient extraction of lanthanide elements, revealing a significant synergistic effect in the process. Experimental results provided insights on the stoichiometry and equilibrium constants of the lanthanide(III) extracted complexes.
1,3,5-Tris(2-diphenylphosphoryl-4-ethylphenoxymethyl)benzene (L '), a phosphorylcontaining tripodand, was synthesized for the first time in order to find extraction systems for efficient recovery of lanthanides. The main regularities of extraction of lanthanide(III) ions with mixtures of L ' and 4-benzoyl-5-methyl-2-phenyl-3-pyrazolone (HL) into CHCl3, 1,2-dichloroethane, toluene, and carbon tetrachloride from chloride solutions were elucidated. A significant synergistic effect, associated with the formation of hydrophobic mixed-ligand complexes of lanthanides(III), was found. The stoichiometry of the extracted complexes was determined by the equilibrium shift method. The equilibrium constants and values of the synergistic effect in the Ln(III)-L '-HL-dichloroethane system were calculated. The influence of the nature of the organic solvent and the composition of the aqueous phase on the efficiency of lanthanide(III) ion extraction into the organic phase was considered.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available