Abstract

Samples of sodium aluminum iron phosphate glass were synthesized containing rhenium as a surrogate of technetium from radioactive waste. The phase composition, structure and water resistance of the obtained glasses were investigated. It was shown that the samples with the rhenium oxide inclusion up to 2.88 wt % are X-ray amorphous and homogeneous, and their anionic motif corresponds to the glassy one. It was found that the oxidation state of rhenium in the obtained glasses is Re(VII), and 97% of iron is in the form of Fe(III) and 3% in the form of Fe(II). The glass was established to be highly resistant to leaching at 90°C. The rate of Re leaching from glasses in accordance with the international product consistency test (PCT) and the semi-dynamic test of State Standard GOST R 52126-2003 is no more than 6 × 10^–6 and 3 × 10^–6 g/(cm² day), respectively.

中文翻译：

---

Aluminum作为磷酸铁铝玻璃中a的替代物的固定化

摘要

合成了铝aluminum磷酸铁钠玻璃样品，其中含有rh作为放射性废物的tech替代物。研究了所得玻璃的相组成，结构和耐水性。结果表明，氧化inclusion夹杂物含量最高为2.88 wt％的样品为X射线无定形且均质的，其阴离子图案对应于玻璃态。发现所获得的玻璃中of的氧化态为Re（VII），并且97％的铁为Fe（III）的形式和3％的Fe（II）的形式。确定该玻璃在90℃下具有高度的耐浸出性。根据国际产品一致性测试（PCT）和国家标准GOST R 52126-2003的半动态测试，从眼镜中再浸出的速率不超过6×10 ^–6和3×10 ^–6 g /（cm ²天）。