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Solvent extraction
Items for "Solvent extraction"
Thermodynamic study of metal silicate complexation in perchlorate media
The thermodynamic parameters of formation of the o-silicate complexes of UO22+, Cm3+ and Eu3+ have been measured in the temperature range 5−45 °C in an aqueous medium of 0.20 M NaClO4) ionic strength...
Keywords: Thermodynamics, Silicate, Complexation, Stability constant, Solvent extraction
02/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagBerkelium nitrate complex formation using a solvent extraction technique
The extraction of Bk(III) into an organic phase consisting of 2,6-bis-(benzoxazolyl)-4-dodecyloxylpyridine, 2-bromodecanoic acid and tert-butyl benzene as a function of nitrate ion concentration in the aqueous phase was studied in order to determine the stability constants of the formation of Bk nitrate complexes...
Keywords: Berkelium, Nitrate complex formation, Solvent extraction
01/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSolvent extraction behaviour of some fission product elements with N,N-dihexyl octanamide and tri-n-butyl phosphate under simulated PUREX process conditions
Extraction behaviour of some fission product contaminants like Zr(IV), RuNO(III), La(III), Ce(III) and Nd(III) with 1.1 M solutions of N,N-dihexyl octanamide (DHOA) and tri-n-butyl phosphate (TBP) in n-dodecane from nitric acid medium has been investigated under conditions prevailing in the PUREX process...
Keywords: Fission products, Solvent extraction, Dihexyl octanamide, Degradation products
06/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSeparation of trivalent actinides from lanthanides in an acetate buffer solution using Cyanex 301
The separation of trivalent actinides from the lanthanides using the active extractant in the Cyanex 301 reagent, bis(2,4,4-trimethylpentyl)dithiophosphinic acid, was studied...
Keywords: Cyanex, Actinide, Lanthanide, Solvent extraction, Separation
05/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagExtraction of neptunium(IV) by a mixture of 3-phenyl-4-acetyl-5-isoxazolone and tri-n-octyl phosphine oxide
The extraction behaviour of Np(IV) by 3-phenyl-4-acetyl-5-isoxazolone (HPAI) was investigated from nitric acid medium in the presence of tri-n-octyl phosphine oxide (TOPO)...
Keywords: Neptunium(IV), Isoxazolone, Solvent extraction, TOPO
06/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagDetermination of stability constants of lanthanide nitrate complex formation using a solvent extraction technique
For lanthanides and actinides, nitrate complex formation is an important factor with respect to the reprocessing of nuclear fuels and in studies that treat partitioning and transmutation/conditioning...
Keywords: Nitrate complex formation, Lanthanides, Solvent extraction, Tetrad effect
08/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagExtraction of medically interesting 188Re-perrhenate in methyl ethyl ketone for concentration purposes
The high bolus volumes (20–40 mL) of the generator-produced Rhenium-188 require post elution concentration of the eluate for the preparation of a dissolved β- source and radiopharmaceuticals labeled with Re-188 for radiotherapy...
Keywords: 188W-188Re generator, Methyl ethyl ketone, Solvent extraction, Concentration of 188Re
09/2007 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSolvent extraction studies of Pu(IV) with CMPO in 1-octyl 3-methyl imidazolium hexa fluorophosphate (C8mimPF6) room temperature ionic liquid (RTIL)
Solvent extraction studies of Pu(IV) from aqueous nitric acid by carbamoyl methyl phosphine oxide (CMPO) in 1-octyl 3-methyl imidazolium hexa fluorophosphate (C8mimPF6) room temperature ionic liquid (RTIL) were carried out...
Keywords: Solvent extraction, Thermodynamics, Plutonium(IV), C8 mimPF6, RTIL
02/2008 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag