Sonochemical Oxidation of Np(V) in Aqueous Nitric Acid Medium and Sonochemical Extraction of Np in two-Phase TBP (30 vol.%)-n-Dodecane/HNO3/H2O System

1999 ◽  
Vol 86 (1-2) ◽  
Author(s):  
S. I. Nikitenko ◽  
Ph. Moisy ◽  
C. Madic
Keyword(s):  
Nitric Acid ◽  
Acid Medium ◽  
Nitric Acid Medium ◽  
Two Phase ◽  
Aqueous Nitric Acid ◽  
Sonochemical Oxidation

Synergistic extraction of uranium(VI) by 2-hydroxy-1-naphthaldehyde thiosemicarbazone and several neutral donors

2003 ◽  
Vol 91 (10) ◽  
Author(s):  
S. Banerjee ◽  
M. Bhar ◽  
S. Basu
Keyword(s):  
Nitric Acid ◽  
Ethyl Acetate ◽  
Acid Medium ◽  
Phosphine Oxide ◽  
Extraction Constant ◽  
Dimethyl Sulphoxide ◽  
Nitric Acid Medium ◽  
Extraction Behaviour ◽  
Trioctyl Phosphine Oxide ◽  
Aqueous Nitric Acid

SummaryThe extraction behaviour of U (VI) from an aqueous nitric acid medium employing a 2-hydroxy-1-naphthaldehyde thiosemicarbazone in ethyl acetate has been studied in presence of different neutral donors like trioctyl phosphine oxide (TOPO), dimethyl sulphoxide (DMSO) and trioctyl amine (TOA). The extraction constant (log

Synergistic extraction of Th(IV) by 2-hydroxy-1-naphthaldehyde thiosemicarbazone and neutral donors

2003 ◽  
Vol 91 (2) ◽  
Author(s):  
S. Banerjee ◽  
S. Basu
Keyword(s):  
Nitric Acid ◽  
Acid Medium ◽  
Phosphine Oxide ◽  
Dimethyl Sulphoxide ◽  
Synergistic Extraction ◽  
Nitric Acid Medium ◽  
Extraction Behaviour ◽  
Trioctyl Phosphine Oxide ◽  
Aqueous Nitric Acid

AbstractThe extraction behaviour of Th(IV) from aqueous nitric acid medium employing 2-hydroxy-1-naphthaldehyde thiosemicarbazone has been studied in the presence of various donors, like trioctyl phosphine oxide (TOPO), calix[3]OH[3]OMe[6]arene, trioctyl amine (TOA), dimethyl sulphoxide (DMSO) in ethylacetate solvent. The constants (log

Extraction of the uranyl ion with 3-phenyl-4-benzoyl-5-isoxazolone (HPBI) and neutral donors from dilute nitric acid medium

2003 ◽  
Vol 91 (12) ◽  
Author(s):  
S. Banerjee ◽  
A. Bhattacharyya ◽  
P. K. Mohapatra ◽  
S. Basu ◽  
V. K. Manchanda
Keyword(s):  
Nitric Acid ◽  
Acid Medium ◽  
Uranyl Ion ◽  
Nitric Acid Medium ◽  
Extraction Behaviour ◽  
Aqueous Nitric Acid ◽  
Dilute Nitric Acid

AbstractThe extraction behaviour of Uranium (VI) from aqueous nitric acid medium employing 3-phenyl-4-benzoyl-5-isoxazolone (HPBI) has been studied in the presence of various amides,

Transport of uranium from nitric acid solution by non-dispersive solvent extraction using a hollow fibre contactor

2006 ◽  
Vol 94 (6-7) ◽  
Author(s):  
C. B. Patil ◽  
P. K. Mohapatra ◽  
R. R. Singh ◽  
P. B. Gurba ◽  
P. Janardan ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Solvent Extraction ◽  
Acid Solution ◽  
Organic Solvent ◽  
Acid Medium ◽  
Nitric Acid Solution ◽  
Hollow Fibre ◽  
Nitric Acid Medium ◽  
Aqueous Nitric Acid

SummaryMembrane based non-dispersive solvent extraction (NDSX) of U(VI) from aqueous nitric acid medium was carried out using a commercial hollow fibre module containing microporous hydrophobic polypropylene capillaries. The NDSX operation was carried out by pumping U(VI) solutions at varying concentrations of nitric acid (1-5 M) through the tube side and organic solvent (di-

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