Naslov
Chemically durable iron phosphate glasses for vitrifying sodium bearing waste (SBW) using cold crucible induction melting (CCIM) technique

Autori
Kim, Cheol-Woon ; Ray, Chandra ; Zhu, D. ; Day, Delbert E. ; Aloy, Albert ; Moguš-Milanković, Andrea ; Karabulut, Mevlut

Izvornik
Journal of nuclear materials (0022-3115) 322 (2003), 2-3; 152-164

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Iron phosphate glasses ; nuclear waste ; cold crucible induction melter

Sažetak
A simulated sodium bearing waste (SBW) was successfully vitrified in iron phosphate glasses (IPG) at a maximum waste loading of 40 wt% by conventional melting and a cold crucible induction melter (CCIM). 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 (PCT), and vapor hydration test (VHT). 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 a considerable savings in time, energy, and cost for vitrifying the SBW stored at the Idaho National Engineering and Environmental Laboratory (INEEL) in iron phosphate glasses.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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