Chemically Durable Iron Phosphate Glasses for Vitrifying Sodium Bearing Waste (SBW) Using Conventional and Cold Crucible Induction Melting (CCIM) Techniques
A simulated sodium bearing waste (SBW) was successfully vitrified in iron phosphate glasses (IPG) at a maximum waste loading of 40 wt% using conventional and cold crucible induction melting (CCIM) techniques. No sulfate segregation or crystalline phases were detectable in the IPG when examined by SEM and XRD. The IPG wasteforms containing 40 wt% SBW satisfy current DOE requirements for aqueous chemical durability as evaluated from their bulk dissolution rate (DR), product consistency test, and vapor hydration test. The fluid IPG wasteforms can be melted at a relatively low temperature (1000°C) and for short times (<6 h). These properties combined with a significantly higher waste loading, and the feasibility of CCIM melting offer considerable savings in time, energy, and cost for vitrifying the SBW stored at the Idaho National Engineering and Environmental Laboratory in iron phosphate glasses.
C. Kim et al., "Chemically Durable Iron Phosphate Glasses for Vitrifying Sodium Bearing Waste (SBW) Using Conventional and Cold Crucible Induction Melting (CCIM) Techniques," Journal of Nuclear Materials, vol. 322, no. 2-3, pp. 152-164, Elsevier, Nov 2003.
The definitive version is available at http://dx.doi.org/10.1016/S0022-3115(03)00325-8
Mining and Nuclear Engineering
Materials Science and Engineering
United States. Department of Energy
Keywords and Phrases
Crucibles; Crystalline materials; Iron compounds; Scanning electron microscopy; X ray diffraction; Product consistency; Glass
International Standard Serial Number (ISSN)
Article - Journal
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