Knowledge Management System Of Institute of process engineering,CAS
| Recovery of titanium and vanadium from titanium-vanadium slag obtained by direct reduction of titanomagnetite concentrates | |
| Liu, Xue-Jie1,2; Chen, De-Sheng1; Chu, Jing-Long1; Wang, Wei-Jing1,2; Li, Yong-Li1; Qi, Tao1 | |
| 2022-05-01 | |
| Source Publication | RARE METALS
 |
| ISSN | 1001-0521 |
| Volume | 41Issue:5Pages:1688-1696 |
| Abstract | 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. |
| Keyword | Recovery Titanium-vanadium slag Roasting Water leaching Titanomagnetite concentrates |
| DOI | 10.1007/s12598-015-0532-3 |
| Language | 英语 |
| WOS Keyword | OPTIMIZATION ; PARAMETERS ; EXTRACTION ; IRON |
| Funding Project | 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 Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | National Natural Science Foundation of China ; National Science Foundation for Distinguished Young Scholars of China ; Key Research Program of the Chinese Academy of Sciences |
| WOS ID | WOS:000776767800029 |
| Publisher | NONFERROUS METALS SOC CHINA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/52601 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Qi, Tao |
| Affiliation | 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 |
| Recommended Citation 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment