Americium recovery and purification using a combined anion exchange-extraction chromatography process

Yamada, W.I.; Martella, L.L.; Navratil, J.D.

doi:10.1016/0022-5088(82)90207-7

Cited by 28 publications

(2 citation statements)

References 6 publications

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“…The C4 and C5 atoms are disordered in 3 (the site occupation factor is 0.679 for the major disorder component). An extinction coefficient of 0.0130(5) was refined for 4 and the absolute structure parameter for the non-centrosymmetric structure 5 was refined to 0.003 (11).…”

Section: 28mentioning

confidence: 99%

Di(p‐tert‐butylphenyl)‐N,N‐di‐(iso‐butyl)carbamoylmethylphosphine oxide and its organotin and uranyl adducts: structural and spectroscopic characterization

Kapoor

Guillory

Schulte

et al. 2005

Applied Organom Chemis

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The single-crystal structure of the hydrophobic actinide extractant di(p-tert-butylphenyl)-N,N-di-(isobutyl)carbamoylmethylphosphine oxide (CMPO, 1) has been determined, as has that of its 1 : 1 chelate complex with uranyl nitrate (2), its 1 : 1 monodentate complexes with Ph 3 SnCl (3) and Me 2 SnCl 2 (4) bonding via the P O group. A 1 : 1 bidentate complex with Ph 2 SnCl 2 bonding via both P O and C O functionalities (5) was obtained which in solution exhibits a C O → Sn bond dissociation to exist as the monodentate isomer coordinating only through the P O group.

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Section: 28mentioning

confidence: 99%

Di(p‐tert‐butylphenyl)‐N,N‐di‐(iso‐butyl)carbamoylmethylphosphine oxide and its organotin and uranyl adducts: structural and spectroscopic characterization

Kapoor

Guillory

Schulte

et al. 2005

Applied Organom Chemis

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“…A few chromatographic methods are reported for the recovery of Am(III) from nitric acid [15][16][17][18]. After decreasing the acidity by partial neutralization, solvent extraction and sorption of Am(III) on hollow fiber loaded with suitable extractants have also been reported [19,20].…”

Section: Introductionmentioning

confidence: 99%

Removal of americium from effluent generated during the purification of plutonium by anion exchange

2015

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Studies have been carried out on removal of americium from the effluent generated during anion exchange purification of plutonium. Americium 241, generated by the beta decay of Plutonium-241, is the major source of activity in this highly acidic effluent and its removal would render the waste easily disposable. A simple and effective co-precipitation method, using thorium oxalate has been investigated for the treatment of this alpha active aqueous waste. Experiments have been carried out to identify optimum conditions to obtain high percentage co-precipitation with minimum amount of co-precipitant. Efforts were carried out to correlate the optimum conditions of co-precipitation of americium obtained in these experiments with solubility of thorium oxalate and americium oxalate calculated from solubility products of these compounds, stability constants of thorium and americium oxalate complexes taken from literature. The saturation capacity of thorium oxalate for Am(III) was also calculated by analyzing the d value data using Langmuir adsorption equation. The strong tendency of americium to get coprecipitated and the high capacity exhibited by thorium oxalate for the uptake of americium indicate feasibility of using this method for the treatment of anion exchange effluent.

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ChemInform Abstract: AMERICIUM RECOVERY AND PURIFICATION USING A COMBINED ANION EXCHANGE‐EXTRACTION CHROMATOGRAPHY PROCESS

Yamada¹,

Martella²,

Navratil³

1983

Chemischer Informationsdienst

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Americium recovery and purification using a combined anion exchange-extraction chromatography process

Cited by 28 publications

References 6 publications

Di(p‐tert‐butylphenyl)‐N,N‐di‐(iso‐butyl)carbamoylmethylphosphine oxide and its organotin and uranyl adducts: structural and spectroscopic characterization

Di(p‐tert‐butylphenyl)‐N,N‐di‐(iso‐butyl)carbamoylmethylphosphine oxide and its organotin and uranyl adducts: structural and spectroscopic characterization

Removal of americium from effluent generated during the purification of plutonium by anion exchange

ChemInform Abstract: AMERICIUM RECOVERY AND PURIFICATION USING A COMBINED ANION EXCHANGE‐EXTRACTION CHROMATOGRAPHY PROCESS

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