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玻璃固化过程中硫酸盐对锝/铼挥发的影响

彭来康, 牛晨晨, 朱永昌, 杨德博, 崔竹, 徐凯

彭来康, 牛晨晨, 朱永昌, 杨德博, 崔竹, 徐凯. 玻璃固化过程中硫酸盐对锝/铼挥发的影响[J]. 核化学与放射化学, 2023, 45(1): 41-47. DOI: 10.7538/hhx.2023.45.01.0041
引用本文: 彭来康, 牛晨晨, 朱永昌, 杨德博, 崔竹, 徐凯. 玻璃固化过程中硫酸盐对锝/铼挥发的影响[J]. 核化学与放射化学, 2023, 45(1): 41-47. DOI: 10.7538/hhx.2023.45.01.0041
shu
PENG Lai-kang, NIU Chen-chen, ZHU Yong-chang, YANG De-bo, CUI Zhu, XU Kai. Effect of Sulfate on Technetium/Rhenium Volatilization During Vitrification[J]. Journal of Nuclear and Radiochemistry, 2023, 45(1): 41-47. DOI: 10.7538/hhx.2023.45.01.0041
Citation: PENG Lai-kang, NIU Chen-chen, ZHU Yong-chang, YANG De-bo, CUI Zhu, XU Kai. Effect of Sulfate on Technetium/Rhenium Volatilization During Vitrification[J]. Journal of Nuclear and Radiochemistry, 2023, 45(1): 41-47. DOI: 10.7538/hhx.2023.45.01.0041
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玻璃固化过程中硫酸盐对锝/铼挥发的影响

  • 1.

    武汉理工大学 硅酸盐建筑材料国家重点实验室,湖北 武汉430070

  • 2.

    中国建筑材料科学研究总院,北京100024

Effect of Sulfate on Technetium/Rhenium Volatilization During Vitrification

  • 1.

    State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China

  • 2.

    China Building Materials Academy, Beijing 100024, China

摘要

    摘要
  • 摘要: 硫酸盐是核废液玻璃固化过程中影响Tc/Re挥发的关键无机盐组成，但其对Tc/Re挥发影响的作用机制尚不清晰。本工作通过设计简化组成体系（SiO2-KReO4-K2SO4），采用X射线衍射（XRD）、热重分析（TG-DSC）和电感耦合等离子体原子发射光谱（ICP-AES）等表征方法开展升温过程中硫酸盐对Re挥发的影响研究。研究结果表明，当Re与S质量比≥1.80时，硫酸盐对Re挥发基本无影响；而当Re与S质量比＜1.80时，硫酸盐的存在可降低Re的挥发温度，并促进Re挥发。
    Abstract: Sulfate is quite crucial to influence Tc/Re volatilization during nuclear liquid waste vitrification, but the mechanism of the effect is not yet clear. In this paper, the simplified SiO2-KReO4-K2SO4 system was used to study the effect of sulfate on Re volatilization during vitrification, and the heat-treated samples were characterized with XRD, TG-DSC and ICP-AES. The results show that sulfate hardly effects Re volatilization, when the mass ratio of Re to S ≥1.80; whereas, when the mass ratio of Re to S <1.80, sulfate promotes Re volatilization and reduces the Re volatilization temperature.
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    • 参考文献(21)
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  • 刊出日期:  2023-02-19

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