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首页> 外文期刊>Journal of Nuclear Materials: Materials Aspects of Fission and Fusion >Solubility of uranium oxide in molten salt electrolysis bath of LiF-BaF2 with LaF3 additive
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Solubility of uranium oxide in molten salt electrolysis bath of LiF-BaF2 with LaF3 additive

机译:掺LaF3的LiF-BaF2熔盐电解槽中氧化铀的溶解度

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摘要

The solubility of UO2 in the molten mixtures of equimolar LiF-BaF2(1:1) with LaF3 as additive was studied in the range of 1423 K-1523 K. The molten fluoride salt mixture LiF-BaF2 LaF3 was equilibrated with a sintered uranium oxide pellet at 1423 K, 1473 K, 1523 K and the salt samples were collected after equilibration. Studies were conducted in the range of 10%-50% by weight additions of LaF3 in the equimolar LiF-BaF2(1:1) base fluoride salt bath. Solubility of UO2 increased with rise in LaF3 concentration in the molten fluoride in the temperature range of 1423 K-1523 K. At a given concentration of LaF3, the UO2 solubility increased monotonously with temperature. With mixed solvent, when UF4 was added as a replacement of part of LaF3 in LiF-BaF2(1:1)-10 wt% LaF3 and LiF-BaF2(1:1)-30 wt% LaF3, there was an enhancement of solubility of UO2. (C) 2015 Elsevier B.V. All rights reserved.
机译:研究了UO2在等摩尔LiF-BaF2(1:1)与LaF3作为添加剂的熔融混合物中的溶解度,其溶解度为1423 K-1523K。熔融氟化盐混合物LiF-BaF2 LaF3用烧结的氧化铀平衡。在1423 K,1473 K,1523 K下沉淀,平衡后收集盐样品。在等摩尔的LiF-BaF2(1:1)基础氟化物盐浴中,LaF3的添加量为10%-50%(重量)。在1423 K-1523 K的温度范围内,UO2的溶解度随LaF3浓度的增加而增加。在给定的LaF3浓度下,UO2的溶解度随温度单调增加。在混合溶剂中,当添加UF4代替LiF-BaF2(1:1)-10 wt%LaF3和LiF-BaF2(1:1)-30 wt%LaF3中的一部分LaF3时,溶解度会提高的UO2。 (C)2015 Elsevier B.V.保留所有权利。

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