Recovery of titanium and vanadium from titanium-vanadium slag obtained by direct reduction of titanomagnetite concentrates
文献类型：期刊论文
| 作者 | Liu, Xue-Jie1,2; Chen, De-Sheng1; Chu, Jing-Long1; Wang, Wei-Jing1,2; Li, Yong-Li1; Qi, Tao1 |
| 刊名 | RARE METALS
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 41期号:5页码:1688-1696 |
| 关键词 | Recovery Titanium-vanadium slag Roasting Water leaching Titanomagnetite concentrates |
| ISSN号 | 1001-0521 |
| DOI | 10.1007/s12598-015-0532-3 |
| 英文摘要 | A process of NaOH molten salt roasting-water leaching to treat titanium-vanadium slag obtained by direct reduction of titanomagnetite concentrates was investigated. X-ray diffraction (XRD), scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS), and thermogravimetry-differential scanning calorimetry (TG-DSC) techniques were used to characterize the samples. The results show that anosovite (MgxTi3-xO5) and clinopyroxene [Ca(Ti,MgAl)(SiAl)(2)O-6] are the major phases of titanium-vanadium slag. In the NaOH molten salt roasting process, titanium is converted to intermediate product Na2TiO3 and vanadium is converted to water-soluble vanadate. The response surface methodology (RSM) was used to optimize the roasting process conditions. NaOH to slag mass ratio (N/S) and roasting temperature are the main influential factors. Under the optimal roasting conditions, i.e., roasting temperature of 550 degrees C, N/S of 1.20, and roasting time of 80 min, the conversions of titanium and vanadium are 96.5 % and 93.0 %, respectively. In the water leaching process, Na2TiO3 is converted to amorphous structure of H2TiO3 since Na+ is exchanged with H+. Up to 93.0 % vanadium is leached out under the optimal leaching conditions. Titanium and vanadium in the titanium-vanadium slag can be separated and then recovered. |
| WOS关键词 | OPTIMIZATION ; PARAMETERS ; EXTRACTION ; IRON |
| 资助项目 | National Natural Science Foundation of China[51090380] ; National Natural Science Foundation of China[51004091] ; National Natural Science Foundation of China[51104139] ; National Natural Science Foundation of China[21006015] ; National Science Foundation for Distinguished Young Scholars of China[51125018] ; Key Research Program of the Chinese Academy of Sciences[KGZD-EW-201-2] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000776767800029 |
| 出版者 | NONFERROUS METALS SOC CHINA |
| 资助机构 | National Natural Science Foundation of China ; National Science Foundation for Distinguished Young Scholars of China ; Key Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/52600]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Qi, Tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xue-Jie,Chen, De-Sheng,Chu, Jing-Long,et al. Recovery of titanium and vanadium from titanium-vanadium slag obtained by direct reduction of titanomagnetite concentrates[J]. RARE METALS,2022,41(5):1688-1696. |
| APA | Liu, Xue-Jie,Chen, De-Sheng,Chu, Jing-Long,Wang, Wei-Jing,Li, Yong-Li,&Qi, Tao.(2022).Recovery of titanium and vanadium from titanium-vanadium slag obtained by direct reduction of titanomagnetite concentrates.RARE METALS,41(5),1688-1696. |
| MLA | Liu, Xue-Jie,et al."Recovery of titanium and vanadium from titanium-vanadium slag obtained by direct reduction of titanomagnetite concentrates".RARE METALS 41.5(2022):1688-1696. |
入库方式： OAI收割
来源：过程工程研究所
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