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Immobilization of Sodium-Bearing High-Level Radioactive Waste in Synroc Containing (Na0.5Nd0.5)TiO3-Type Perovskite

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Abstract:

This study on the immobilization of high-sodium-bearing HLW in synroc indicates that (Na0.5Nd0.5)TiO3-type perovskite can be used to incorporate a high content of sodium in synroc. Synroc samples containing 13.0 wt% waste oxide and 5.7 wt% Na2O show very well chemical durability and physical properties. The standard Synroc-C formulation can incorporate only 2 wt% Na2O, so this study greatly improved the immobilization ability of sodium in Synroc-related material.

Document Type: Research Article

DOI: https://doi.org/10.1111/j.1151-2916.1997.tb02819.x

Affiliations: China Institute of Atomic Energy. Beijing 102413. China

Publication date: 1997-01-01

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