Way to Enforce Selectivity via Steric Hindrance: Improvement of Am(III)/Eu(III) Solvent Extraction by Loaded Diphosphonic Acid Esters

2021 ◽  
Author(s):  
Petr I. Matveev ◽  
Pin-Wen Huang ◽  
Anna A. Kirsanova ◽  
Ivan V. Ananyev ◽  
Tsagana B. Sumyanova ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Steric Hindrance ◽  
Diphosphonic Acid ◽  
Acid Esters

Infrared and p.m.r. investigations on some complexes of uranyl β-diketonates with methyl-substituted pyridine N-oxides

1974 ◽  
Vol 27 (7) ◽  
pp. 1573 ◽  
Author(s):  
VK Manchanda ◽  
MS Subramanian
Keyword(s):  
Solvent Extraction ◽  
Steric Hindrance ◽  
Analytical Data ◽  
Acetyl Acetone ◽  
Substituent Constants

Several complexes of uranyl β-diketonates with pyridine N-oxides having varying relative degrees of steric hindrance to coordination (2-methyl-3-methyl-,4-methyl-and 2,6-dimethyl-pyridine N-oxide) were isolated by solvent extraction from the system UO22+-β-diketone-pyridine N-oxide in benzene. The β-diketones used were thenoyltrifluoroacetone (tta), benzoyltrifluoroacetone (btfa), acetyl-acetone (acac), benzoylacetone (ba) and dibenzoylmethane (dbm). The analytical data of these complexes lead to their formulation as UO2(β-diketone)2 pyridine N-oxide. Infrared and N.M.R. spectra of these complexes are discussed and interpreted in terms of the substituent constants of the pyridine N-oxide.

scholarly journals Solvent extraction of lanthanoid, yttrium and some polyvalent metal ions with phosphoric acid esters of Triton X-100.

1986 ◽  
Vol 2 (5) ◽  
pp. 447-450 ◽  
Author(s):  
Isao YOSHIDA ◽  
Jun'ichi HIRASAWA ◽  
Hiroto TSUMAGARI ◽  
Keihei UENO ◽  
Makoto TAKAGI
Keyword(s):  
Solvent Extraction ◽  
Phosphoric Acid ◽  
Metal Ions ◽  
Polyvalent Metal ◽  
Triton X ◽  
Acid Esters

scholarly journals Solvent Extraction of Lanthanum(III) and Europium(III) from Nitrate Media by Aminooctyldimethylene Diphosphonic Acid

2016 ◽  
Vol 23 (1) ◽  
pp. 51-61 ◽  
Author(s):  
Imane BOULENOUAR ◽  
M’hammed KAID ◽  
Okkacha ABBES ◽  
Didier VILLEMIN
Keyword(s):  
Solvent Extraction ◽  
Diphosphonic Acid
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