Study on the denitrogenization kinetics of uranium during electron beam cold hearth refining
文献类型：期刊论文
| 作者 | Chen, B.1; Du, Z. H.1; Liu, K.1; Zhang, X. J.2; Wang, Z. H.2 |
| 刊名 | VACUUM
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 172页码:6 |
| 关键词 | Uranium Electron beam cold hearth refining Denitrogenation Dynamics |
| ISSN号 | 0042-207X |
| DOI | 10.1016/j.vacuum.2019.109014 |
| 通讯作者 | Chen, B.(bchen@imr.ac.cn) |
| 英文摘要 | An investigation of kinetics of release of nitrogen from uranium melt were carried out under pressure of less than 0.01Pa via electron beam cold hearth refining. The results indicated that electron beam smelting was an effective purifacation method to reduce nitrogen, the nitrogen decreased sharply to be 10% of initial after 60 min refining. The nitrogen removal rate is first order with respect to nitrogen content in the melt, and the release process is controlled by nitrogen transfer in liquid diffusion layer. The mass transfer coefficient was determined, and the values were estimated to be 0.82 x 10(-5) m s(-1) and 1.40 x 10(-5) m s(-1) at 1940 degrees C and 2320 degrees C, respectively. The release of denitrogenation increased with melt temperature, and apparent activation energy of the release was calculated to be 68 kJ mol(-1) from Arrhenius type equation. |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000509788900011 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/137242]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Chen, B. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.China Acad Engn Phys, Mianyang 621900, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, B.,Du, Z. H.,Liu, K.,et al. Study on the denitrogenization kinetics of uranium during electron beam cold hearth refining[J]. VACUUM,2020,172:6. |
| APA | Chen, B.,Du, Z. H.,Liu, K.,Zhang, X. J.,&Wang, Z. H..(2020).Study on the denitrogenization kinetics of uranium during electron beam cold hearth refining.VACUUM,172,6. |
| MLA | Chen, B.,et al."Study on the denitrogenization kinetics of uranium during electron beam cold hearth refining".VACUUM 172(2020):6. |
入库方式： OAI收割
来源：金属研究所
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