Structure and ion-exchange characteristics of polyantimonic acid

Baetslé, L.H.; Huys, D.

doi:10.1016/0022-1902(68)80489-0

Cited by 98 publications

(33 citation statements)

References 7 publications

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“…For the two hydrated metal oxides, antimony pentoxide and titanium dioxide [12,15] Sb 2 O s nH 2 0 and Ti0 2 nH 2 0, respectively, similar results were obtained, as discussed before for zirconium-and titaniumphosphates (Figures 1 e and 0· In the neutral medium (pH 7) and weak nitric acid media (pH land 2) cesium was retained, especially on antimony pentoxide up to 30g Cs/kg HAP, whereas for titanium dioxide lower loading capacities were achieved. For increasing and decreasing H + -concentrations, the loading capacities went down; thus, these exchange materials are not applicable except in about neutral solutions.…”

Section: Resultsmentioning

confidence: 99%

“…These references [3 -18] refer to the chemical composition, production procedure and their application for cesium separation mostly performed for sea water and in alkaline medium. For HCl and HN0 3 media Brought to you by | New York University Bobst Library Technical Services Authenticated Download Date | 6/28/15 12:37 AM some data are available in particular for AMP-1 [4,5] and HAP [12], but not for sorption of cesium in nitric acid solutions in presence of high salt concentrations occuring in PUREX PROCESS. CSN0 3 was used as cesium carrier and 132 Cs (Ey = 668 keV, tl/2 = 6.47 d) as tracer for the radioactive γ-measurement, which was performed with an intrinsic Ge-detector of a FWHM = 1.7 keV and an efficiency of 15% at the 1332 keV line of 60 Co, relative to a 3 χ 3 inch planar Nal-detector.…”

Section: Methodsmentioning

confidence: 97%

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Separation of Cesium from Acid ILW-Purex Solutions by Sorption on Inorganic Ion Exchangers

Faubel

Ali

1986

Radiochimica Acta

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The separation of cesium by use of the inorganic ion exchanger ammonium molybdatophosphate from nitric acid solutions of intermediate level waste (ILW) from reprocessing of spent fuel elements according to the PUREX PROCESS has been demonstrated.Other inorganic exchange materials have shown high sorption values only for certain pH ranges: -ammonium hexacyano cobaltous ferrate (pH 12, 35 g Cs/kg) -potassium hexacyano nickel ferrate (pH 10, 30 g Cs/kg) -zirconium phosphate (pH 7, 100 g Cs/kg) -titanium phosphate (pH 7, 15 g Cs/kg) -antimony pentoxide (pH 2, 30 g Cs/kg) -titanium oxide (pH 7, 1 g Cs/kg) Except for high salt loading of 3.6 AT NaN0 3 , a significant loss of capacities usually occurs; this does not allow the use of these exchangers. However, ammonium molybdatophosphate shows excellent performance with high salt loadings and in a broad pHrange from pH 9 to conc. HN0 3 with a breakthrough-capacity of 60 g Cs/kg.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 97%

Separation of Cesium from Acid ILW-Purex Solutions by Sorption on Inorganic Ion Exchangers

Faubel

Ali

1986

Radiochimica Acta

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“…Its structure was solved with H 2 O and H 3 O + occupying sites 16d and 8b (50 and 100 % occupied, respectively) in the archetypal perovskite lattice. It was also shown that the phase synthesized by aging acidified (HCl) precipitates at room temperature [24] was identical in nature. Lower hydrates exhibit a subtly different pyrochlore-type structure.…”

Section: Solution Geochemistrymentioning

confidence: 99%

Dispersion of antimony from oxidizing ore deposits

Diemar

Filella

Leverett

et al. 2009

Pure and Applied Chemistry

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, at 25 °C in 0.100 mol dm -3 aqueous HNO 3 was also investigated. Equilibrium dissolved Sb concentrations were 3.3 ± 1.0 × 10 -7 and 7.7 ± 2.1 × 10 -8 mol dm -3 , respectively. These values have been used to re-evaluate the geochemical mobility of Sb in the supergene environment. It is concluded that the element is geochemically immobile in solution and in soils. This was in part validated by an orientation soil geochemical survey over the Bayley Park prospect near Armidale, New South Wales, Australia. Anomalous soil Sb levels are confined to within 100 m of known stibnite mineralization.

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“…AntlmonlcAcld Cubic antimonic .acid (abbreviatedCcihA) ·in the granular form was purchased from Toagosei Chemical Industry Co. Its chemical formula is expressed as Sb 20s·4H20 (10) and it is considered to consist of three H 3Sb30s(OH)s units and one H5Sbs06(OH)ls~nit per unit cell (11). According to our elemental analysis, about 1.2% hydrogen ions in the purchased CSbA are replaced by sodium ions.…”

Section: Experim:entalmentioning

confidence: 99%

Cubic Antimonic Acid as Column-Packing Material for Chromatographic Lithium Isotope Separation

Shimizu

Tayama

et al. 1999

Separation Science and Technology

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The applicability of granular cubic antimonic acid (C-SbA) as column packing material in chromatographic lithium isotope separation was investigated. The feed solution should have the buffer capacity to promote lithium uptake, and its pH has to be kept as low as 2.25 to prevent the decomposition of the granular C-SbA in order to obtain a sharp front boundary of the lithium sorption zone. The pH and the chemical composition of the eluent should be finely controlled to obtain a displacement-type chromatogram. The lithium isotope separation effect was about ten times larger than that achieved on an organic ion exchanger.

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Structure and ion-exchange characteristics of polyantimonic acid

Cited by 98 publications

References 7 publications

Separation of Cesium from Acid ILW-Purex Solutions by Sorption on Inorganic Ion Exchangers

Separation of Cesium from Acid ILW-Purex Solutions by Sorption on Inorganic Ion Exchangers

Dispersion of antimony from oxidizing ore deposits

Cubic Antimonic Acid as Column-Packing Material for Chromatographic Lithium Isotope Separation

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