The influence of diluent polarity on extraction of plutonium complexes to organic media

Taube, M.

doi:10.1016/0022-1902(59)80107-x

Cited by 26 publications

(8 citation statements)

References 2 publications

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“…The results show a maximum in the Zr extraction at 1 M TBP with K d «=330. This result is similar to the TIOA extraction of Zr where maximum extraction also occurs at 1 M ligand concentration [14,15], Above 1 M concentration of ligand, aggregation occurs and inhibits metal extraction [20]. The extraction curve for Nb differs from the Zr extraction curve.…”

Section: Resultssupporting

confidence: 63%

Solution Chemistry of Element 104: Part II. Liquid-Liquid Extractions with Tributylphosphate

et al. 1994

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Element 104 / Rutherfordium / Liquid-liquid extraction / Transactinide chemistry / KurchatoviumAbstract Liquid-liquid extractions of element 104 (Rf), Zr, Nb, Hf, Th, and Pu(IV) were conducted using tributylphosphate (TBP) in benzene. Initial studies were conducted using 95 Zr and 95 Nb. The effect of TBP, HCl, chloride, and hydrogen ion concentrations on Zr and Nb extraction was examined. Based on the results from these experiments, it was decided to examine Rf extraction into 0.25 M TBP in benzene as a function of HCl, chloride, and hydrogen ion concentrations between 8 and 12 M. Studies of these extraction conditions were carried out using 95 Zr, 169 Hf, 228 Th, 238 Pu, and 26, Rf. The 65-second 261 Rf was produced via the 248 Cm( 18 0,5n) reaction at the 88-Inch Cyclotron at Lawrence Berkeley Laboratory. The results show that extraction for these elements increases or remains high as a function of HCl concentration. However, in the experiments in which the chloride and hydrogen ion were varied, Rf extraction differed from that of the group 4 elements and behaved more like Pu(IV).

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Section: Resultssupporting

confidence: 63%

Solution Chemistry of Element 104: Part II. Liquid-Liquid Extractions with Tributylphosphate

et al. 1994

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“…In many cases, the distribution ratios cannot be correlated to the physical properties of the diluent, even though many attempts have been made to do so. Taube tried to correlate the extraction efficiency of uranium, plutonium and neptunium with the dipole moment and the dielectric constant of the solvent (Taube, 1959(Taube, , 1960. Healy (1961) linked the diluent effect with the water content of the solvents.…”

Section: Introductionmentioning

confidence: 99%

Effect of the diluent on the solvent extraction of neodymium(III) by bis(2-ethylhexyl)phosphoric acid (D2EHPA)

Batchu

Binnemans

2018

Hydrometallurgy

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“…Therefore the extraction distribution coefficient of erythromycin increases. In addition, there is the ‘diluent effect’, which as Taube12, 13 pointed out, depends on the interaction between the dipoles of the extracted complex and the diluent molecule. This interaction makes the extraction complexes easier to enter into the organic phase.…”

Section: Extraction Mechanismmentioning

confidence: 99%

Study on new solvent extraction systems for erythromycin

Zhou

Qin

et al. 2005

J of Chemical Tech & Biotech

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New solvent systems for the extraction of erythromycin were studied in which octanol was used as the extractant instead of butyl acetate. The mechanism for these new extraction systems is not simple physical distribution but the formation of a neutral complex of erythromycin. A neutral extraction complex formed between the neutral molecules of erythromycin and extractant by hydrogen bonding, and the formed neutral extraction complex moves into the organic phase. Extraction reaction equations and mathematical models of extraction equilibrium and re-extraction equilibrium are proposed for these new extraction systems. Experimental results show that the new extraction systems offer technological and economic advantages owing to the low solubility of the extraction solvents in the aqueous phase. The solvent consumption of the new extraction process was less than 3kg per billion active units compared with 9-10 kg per billion active units for a butyl acetate extraction system. In addition, the recovery of solvent from raffinate may be eliminated, thus reducing energy consumption.

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The influence of diluent polarity on extraction of plutonium complexes to organic media

Cited by 26 publications

References 2 publications

Solution Chemistry of Element 104: Part II. Liquid-Liquid Extractions with Tributylphosphate

Solution Chemistry of Element 104: Part II. Liquid-Liquid Extractions with Tributylphosphate

Effect of the diluent on the solvent extraction of neodymium(III) by bis(2-ethylhexyl)phosphoric acid (D2EHPA)

Study on new solvent extraction systems for erythromycin

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