Determination of sulfur environments in borosilicate waste glasses using X-ray absorption near-edge spectroscopy

McKeown, David A.; Muller, Isabelle S.; Gan, Hao; Pegg, Ian L.; Stolte, Wayne C.

doi:10.1016/j.jnoncrysol.2003.09.035

Cited by 72 publications

(96 citation statements)

References 30 publications

(65 reference statements)

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“…The absence of Raman bands related to S-S bonds, S(IV) or S(V) complexes, which provide broad bands in the region 300 -460 cm -1 [72,73] supports this. Further literature support for this conclusion is provided by X-Ray absorption spectroscopy for other sulfate-doped radioactive waste borosilicate glasses prepared under oxidising conditions [73] and from redox potentials [74], which show that lower sulfur oxidation states are not formed in glasses produced under oxidising conditions.…”

Section: Accepted Manuscriptmentioning

confidence: 53%

Modelling the sulfate capacity of simulated radioactive waste borosilicate glasses

Bingham

Vaishnav

Forder

et al. 2017

Journal of Alloys and Compounds

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(2017). Modelling the sulfate capacity of simulated radioactive waste borosilicate glasses. Journal of Alloys and Compounds, 695,[656][657][658][659][660][661][662][663][664][665][666][667]. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Copyright and re-use policy M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT

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Section: Accepted Manuscriptmentioning

confidence: 53%

Modelling the sulfate capacity of simulated radioactive waste borosilicate glasses

Bingham

Vaishnav

Forder

et al. 2017

Journal of Alloys and Compounds

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“…Another possibility is a distribution of sulfur redox states in these glasses rather than sulfate ions only. Some evidence for this distribution in partially reduced melts was reported by McKeown et al (2004). The results from 13 melter segments are compiled in Table 2.1.…”

Section: Wtp Law Glass Studiesmentioning

confidence: 55%

Preliminary Investigation of Sulfur Loading in Hanford LAW Glass

Vienna¹,

Hrma²,

Buchmiller³

et al. 2004

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SummaryA preliminary estimate was developed for loading limits for high-sulfur low-activity waste (LAW) feeds that will be vitrified into borosilicate glass at the Hanford Site in the waste-cleanup effort. Previous studies reported in the literature were consulted to provide a basis for the estimate. The examination of previous studies led to questions about sulfur loading in Hanford LAW glass, and scoping tests were performed to help answer these questions. The results of these tests indicated that a formulation approach developed by Vienna and colleagues shows promise for maximizing LAW loading in glass. However, there is a clear need for follow-on work.The approach taken by the Waste Treatment and Immobilization Plant (WTP) was based on a sulfur:sodium product. Specifically, the technical basis for WTP glass formulations was initially given by: The approach taken in this study demonstrated increasing sulfur tolerance with increasing alkali and alkali-earth concentrations. Therefore,

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“…The concentration of ZrO 2 was increased (3 to 6 wt%) at the expense of either Al 2 O 3 or B 2 O 3 in order to increase glass durability, but was limited to about 6 wt% or less because of the tendency for crystallization of zirconium phases at ZrO 2 concentrations in the glass of greater than ≈6.5 wt%. V 2 O 5 was added to all four glass compositions at a concentration of 1.0 wt% because it is an additive that improves sulfate solubility [2, 5-7, [43][44][45][46]; at higher concentrations it also increases sulfate volatilization from the melter during feed processing [4].…”

Section: Glass Formulationmentioning

confidence: 99%

Final Report - LAW Envelope C Glass Formulation Testing to Increase Waste Loading, VSL-05R5900-1

Kruger¹,

Pegg²,

Matlack³

et al. 2013

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Determination of sulfur environments in borosilicate waste glasses using X-ray absorption near-edge spectroscopy

Cited by 72 publications

References 30 publications

Modelling the sulfate capacity of simulated radioactive waste borosilicate glasses

Modelling the sulfate capacity of simulated radioactive waste borosilicate glasses

Preliminary Investigation of Sulfur Loading in Hanford LAW Glass

Final Report - LAW Envelope C Glass Formulation Testing to Increase Waste Loading, VSL-05R5900-1

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