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| Recovery of TiO2-enriched material from vanadium titano-magnetite concentrates by partial carbon reduction and mild acid leaching | |
| Safdar, Faiza1,2; Zhang, Ying2,3; Zheng, Shili2; Chen, Xing2; Sun, Pei4; Zhang, Yang2; Li, Ping2 | |
| 2020-05-01 | |
| Source Publication | HYDROMETALLURGY
 |
| ISSN | 0304-386X |
| Volume | 193Pages:10 |
| Abstract | Vanadium-titano magnetite (VTM) is a typical resource in China. The typical method used to recover valuable elements from VTM concentrates is by the blast furnace smelting method. However, titanium is nearly all wasted in the form of blast furnace slag. A new pathway towards obtaining TiO2-enriched material for titanium extraction was designed in this study. The main means is the combination of partial carbon reduction and mild acid leaching. After reduction and leaching, most of the iron and other elements are transferred into solution, leaving a TiO2-enriched residue. Iron and vanadium are reclaimed from the leaching liquid later. In this study, the reduction and leaching parameters were optimized, which included reducing at 1000 degrees C for 3 h with a carbon addition of 6% by mass of VTM and leaching at 80 degrees C for 3-4 h by using a 0.2 mol/L H2SO4 solution with a liquid-to-solid ratio of 100:1. The dehydrated residue was mainly rutile containing 72.2 wt% TiO2, which is a satisfactory material for Ti extraction. In addition, upon determining the phase composition and the mass loss after reduction with different dosages of carbon, the reduction route for iron in the magnetite phase and the main gas byproduct during reduction were analyzed. This study provides a new idea for extracting titanium from VTM concentrates. |
| Keyword | Vanadium titano-magnetite (VTM) Titanium dioxide Carbon reduction Acid leaching Enrichment |
| DOI | 10.1016/j.hydromet.2020.105324 |
| Language | 英语 |
| WOS Keyword | SOLID-STATE ; ILMENITE ; IRON ; SEPARATION ; BEHAVIOR ; KINETICS |
| Funding Project | Beijing Natural Science Foundation[2192056] ; Natural Science Foundation of China[51771179] ; State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization ; CAS Interdisciplinary Innovation Team |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| Funding Organization | Beijing Natural Science Foundation ; Natural Science Foundation of China ; State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization ; CAS Interdisciplinary Innovation Team |
| WOS ID | WOS:000528201300017 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/40345 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang, Ying; Zheng, Shili |
| Affiliation | 1.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, 1 Bei Er Jie, Beijing 100190, Peoples R China 3.State Key Lab Vanadium & Titanium Resources Compr, 90 Taoyuan St, Panzhihua 617000, Sichuan, Peoples R China 4.Univ Utah, Mat Sci & Engn, 135 5 1460 E, Salt Lake City, UT 84112 USA |
| Recommended Citation GB/T 7714 | Safdar, Faiza,Zhang, Ying,Zheng, Shili,et al. Recovery of TiO2-enriched material from vanadium titano-magnetite concentrates by partial carbon reduction and mild acid leaching[J]. HYDROMETALLURGY,2020,193:10. |
| APA | Safdar, Faiza.,Zhang, Ying.,Zheng, Shili.,Chen, Xing.,Sun, Pei.,...&Li, Ping.(2020).Recovery of TiO2-enriched material from vanadium titano-magnetite concentrates by partial carbon reduction and mild acid leaching.HYDROMETALLURGY,193,10. |
| MLA | Safdar, Faiza,et al."Recovery of TiO2-enriched material from vanadium titano-magnetite concentrates by partial carbon reduction and mild acid leaching".HYDROMETALLURGY 193(2020):10. |
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