Titanium-Enriched Slag Prepared by Atmospheric Hydrochloric Acid Leaching of Mechanically Activated Vanadium Titanomagnetite Concentrates
| Autor: | Xiang-Kui Cheng, Zhe Wang, Jing-Wei Li, Jun Liu, Jin-Chuan Liu, Yin-He Lin, Yu-Long Jia, Guo-Liang Yin, En-Hui Wu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Vanadium chemistry.chemical_element Hydrochloric acid engineering.material Article chemistry.chemical_compound mechanical activation Specific surface area General Materials Science vanadium titanomagnetite concentrates Microscopy QC120-168.85 QH201-278.5 Slag TiO2 extraction Engineering (General). Civil engineering (General) TK1-9971 Descriptive and experimental mechanics chemistry titanium-enriched slag visual_art hydrochloric acid Leaching Titanium dioxide visual_art.visual_art_medium engineering Electrical engineering. Electronics. Nuclear engineering Leaching (metallurgy) TA1-2040 Ilmenite Nuclear chemistry Titanium |
| Zdroj: | Materials Volume 14 Issue 22 Materials, Vol 14, Iss 6736, p 6736 (2021) |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma14226736 |
| Popis: | The titanium-enriched slag was obtained via atmospheric hydrochloric acid leaching of mechanically activated vanadium titanomagnetite concentrates (VTMCs). Under the influence of mechanical activation, specific physicochemical changes were observed via X-ray diffractometry, scanning electron microscopy, and granulometric laser diffraction analysis. Experimental findings revealed that the mechanical activation of VTMCs resulted in a decrease in the median volume particle diameter (d50) and an increase in the specific surface area (SA) with an increased milling time. The results of the leaching experiment revealed that the mechanical activation treatment favors the extraction of iron (Fe) and titanium dioxide (TiO2) from the VTMCs. The Fe and TiO2 extractions from the mechanically activated sample after 10 h compared with the unactivated sample were increased by 12.82% and 4.73%, respectively. The presence of the ilmenite phase in the titanium-enriched slag was confirmed by X-ray diffractometry and EDS patterns, and the content of the TiO2 in the enriched slag can get as high as 43.75%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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