| UO2—HF—HCl—H2O体系中介稳溶液的研究 |
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| 引用本文： | 程英芳.UO2—HF—HCl—H2O体系中介稳溶液的研究[J].原子能科学技术,1989,23(1):77-81. |
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| 作者姓名： | 程英芳 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 铀是基本的核燃料,是重要的能源资源,UF_4则是生产金属铀工艺中的重要化合物。湿法生产UF_4又是重要手段之一。但在工业上如何用水法生产合格的UF_4,有不少值得研究的问题,其中对湿法生产UF_4中生产工艺条件的控制是关键,因此必须深入了解和掌握UF_4的生成和结晶的平衡条件。本文研究了UO_2-HF-HCl-H_2O四元体系80℃相平衡,平衡75h,盐酸浓度150g/l载面中介稳溶液的性质,测定了它的区域,分解时间和组成的关系,找到了能够生成良好的UF_4晶体的条件和区域。
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| 关 键 词： | UF4 介稳溶液 相平衡 铀化合物 铀 |
INVESTIGATION OF THE METASTABLE SOLUTION IN THE VO_2-HF-HCI-H_2O SYSTEM |
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| CHENG YINGFANG Chang Chun Institute of Applied Chemistry,Academia Sinica.INVESTIGATION OF THE METASTABLE SOLUTION IN THE VO_2-HF-HCI-H_2O SYSTEM[J].Atomic Energy Science and Technology,1989,23(1):77-81. |
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| Authors: | CHENG YINGFANG Chang Chun Institute of Applied Chemistry Academia Sinica |
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| Abstract: | The properties of the metastable solution in the UO_2-HF-HCl-H_2O system are studied. The metastable region is determined by the optical method. When the conditions are changed, the metastable solution decomposes and the characteristic curve of the uranium tetrafluoride is produced. According to the experimental results, the optimal conditions to produce the uranium tetrafluoride by the wet method is described. |
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| Keywords: | Uranium tetrafluoride Metastable solution Phase equilibrium |
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