Extraction chromatographic material with HDEHP on polyacrylonitrile (PAN)

Šebesta, F.; Kameník, Jan

doi:10.1007/s10967-009-0441-8

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…The liquid organic phases were replaced by composite sorbents with polyacrylonitrile (PAN) as a binding matrix. PAN was proposed as a binding polymer for inorganic ion-exchangers [47] and later used also as a support material for extraction agents [48][49][50][51][52].…”

Section: Introductionmentioning

confidence: 99%

Separation of curium from americium using composite sorbents and complexing agent solutions

Šťastná

John

Šebesta

et al. 2014

J Radioanal Nucl Chem

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The EXAm and the AmSel liquid-liquid extraction processes have been used as bases for the development of chromatographic systems for separation of curium(III) from americium(III). The liquid organic phases were replaced by composite sorbents with PAN binding matrix and complexing agent in nitric acid solutions were employed as aqueous phases. The influence of complexing agent and nitric acid concentrations on weight distribution coefficients and separation factor and the kinetics of the actinide uptake were determined in batch experiments with trace amounts of 241 Am and 244 Cm. The efficiency of Cm(III) separation from Am(III) was evaluated in column experiment.

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Section: Introductionmentioning

confidence: 99%

Separation of curium from americium using composite sorbents and complexing agent solutions

Šťastná

John

Šebesta

et al. 2014

J Radioanal Nucl Chem

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“…For example, ammonium molybdophosphate has long been known for its high selectivity for cesium sorption. [10][11][12][13][14] A series of calixcrowns also show high selectivity for certain metal ions such as cesium and strontium. [15][16][17][18] However, commercialization of these new monomers has been hampered by high costs and poor solubility.…”

Section: Introductionmentioning

confidence: 99%

Crosslinking induced by irradiation raises selectivity of polymeric adsorbent

Hoshina

Seko

2012

J of Applied Polymer Sci

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Amine‐type adsorbents were prepared by radiation‐induced graft polymerization. The sorption behaviors for an individual metal ion of Cu2+ and Pb2+ separately, as well as with mixed Cu2+/Pb2+, were studied in both column and batch mode. Ethylenediamine‐type adsorbent exhibited a high capacity for Cu2+ and Pb2+ at a high flow rate of 1000 h−1, but low selectivity in the mixed Cu2+/Pb2+ solutions. Radiation‐induced crosslinking of the amine‐type adsorbent was performed in water to improve selectivity. Crosslinking of the material was demonstrated by gel fraction, water content, and scanning electron microscopy image. Compared with the results from the noncrosslinked adsorbents, the breakthrough curve of Cu2+ right shifted, whereas the breakthrough curve of Pb2+ left shifted, indicating the higher adsorption capacity of Cu2+ and the lower adsorption capacity of Pb2+ from the crosslinked adsorbent. After 300 kGy irradiation, the crosslinked adsorbent was found to selectively adsorb Cu2+ from the mixed Cu2+/Pb2+ solution. The results revealed that crosslinking raised the selectivity of the adsorbents. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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