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A Melting Route to Synroc for Hanford HLW Immobilization
Published online by Cambridge University Press: 15 February 2011
Abstract
For the HLW fractions of certain Hanford tank wastes, wasteforms consisting mainly of crystalline Synroc phases in an aluminosilicate matrix can be formed by melting at 1350–1450°C in a neutral atmosphere, with waste loadings of up to 70 wt%, depending on the waste composition. The leachability of all measured elements in 7-day PCT tests was <0.1 g/m2/d at 90°C in the best materials.
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