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- Title
Vanadium Recovery from Oil Fly Ash by Carbon Removal and Roast-Leach Process.
- Authors
Jung, Myungwon; Mishra, Brajendra
- Abstract
This research mainly focuses on the recovery of vanadium from oil fly ash by carbon removal and the roast-leach process. The oil fly ash contained about 85% unburned carbon and 2.2% vanadium by weight. A vanadium-enriched product was obtained after carbon removal, and the vanadium content of this product was 19% by weight. Next, the vanadium-enriched product was roasted with sodium carbonate to convert vanadium oxides to water-soluble sodium metavanadate. The roasted sample was leached with water at 60°C, and the extraction percentage of vanadium was about 92% by weight. Several analytical techniques, such as inductively coupled plasma atomic emission spectroscopy (ICP-AES), x-ray fluorescence (XRF), and thermogravimetric and differential thermal analysis (TG-DTA), were utilized for sample analyses. Thermodynamic modeling was also conducted with HSC chemistry software to explain the experimental results.
- Subjects
FLY ash leaching; VANADIUM oxide; SODIUM carbonate; X-ray fluorescence; THERMOGRAVIMETRY; DIFFERENTIAL thermal analysis
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2018, Vol 70, Issue 2, p168
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-017-2653-7