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http://dx.doi.org/10.7844/kirr.2022.31.2.40

Recovery Process of Vanadium from the Leaching Solution of Salt-Roasted Vanadate Ore  

Yoon, Ho-Sung (Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources)
Heo, Seo-Jin (Resource Recycling Department, University of Science and Technology(UST))
Park, Yu-Jin (Resource Recycling Department, University of Science and Technology(UST))
Kim, Chul-Joo (Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources)
Chung, Kyeong Woo (Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources)
Kim, Rina (Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources)
Jeon, Ho-Seok (Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources)
Publication Information
Resources Recycling / v.31, no.2, 2022 , pp. 40-48 More about this Journal
Abstract
In this study, the effects of solution components were investigated in the recovery of vanadium as ammonium metavanadate from vanadium-ore-salt roasting-water leaching solution. The vanadium-containing solution is strongly alkaline (pH 13), so the pH must be lowered to 9 or less to increase the ammonium metavanadate precipitation efficiency. However, in the process of adjusting the solution pH using sulfuric acid, aluminum ions are co-precipitated, which must be removed first. In this study, aluminum was precipitated in the form of an aluminum-silicate compound using sodium silicate, and the conditions for minimizing vanadium loss in this process were investigated. After aluminum removal, the silicate was precipitated and removed by adjusting the solution pH to 9 or less using sulfuric acid. In this process, the concentration and addition rate of sulfuric acid have a significant influence on the loss of vanadium, and vanadium loss was minimized as much as possible by slowly adding dilute sulfuric acid. Ammonium metavanadate was precipitated using three equivalents of ammonium chloride at room temperature from the aluminum-free, aqueous solution of vanadium following the pH adjustment process. The recovery yield of vanadium in the form of ammonium metavanadate exceeded 81%. After washing the product, vanadium pentoxide with 98.6% purity was obtained following heat treatment at 550 ℃ for 2 hours.
Keywords
Vanadium; Ammonium metavanadate; Ammonium chloride; Aluminum; Silicate;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Heo, S. J., Kim, R., Chung, K. W., et al., 2021 : Effect of Precipitation Temperature and Solution pH on the Precipitation of Ammonium Metavanadate, Journal of the Korean Institute of Resources Recycling, 30(6), pp.3-11.
2 Xiong, P., Zhang, Y., Bao, S., et al., 2018 : Precipitation of vanadium using ammonium salt in alkaline and acidic media and the effect of sodium and phosphorus, Hydrometallurgy, 180, pp.113-120.   DOI
3 Shlewit, H. and Alibrahim, M., 2006 : Extraction of sulfur and vanadium from petroleum coke by means of salt-roasting treatment, Fuel, 85(5-6), pp.878-880.   DOI
4 Chithaiah, P., Nagabhushana, G. P., Chandrappa, G. T., 2014 : Synthesis of single crystalline (NH4)2V6O16·1.5H2O nest-like structures, Physica E, 59, pp.218-222.   DOI
5 Mandhane, P. G., Joshi, R. S., Ghawalkar, A. R., et al., 2009 : Ammonium metavanadate: A mild and efficient catalyst for the synthesis of coumarins, Bulletin of the Korean Chemical Society, 30(12), pp.2969-2972.   DOI
6 Brinker, C. J., Scherer, G. W., 1990 : Sol-gel science : the physics and chemistry of sol-gel processing, Academic Press, America.
7 Long, S., Feng, Q., Zhang, G., et al., 2014 : Recovery of vanadium from alkaline leaching solution from roasted stone coal, Sci Asia, 40, pp.69-72.   DOI
8 Du, G., Sun, Z., Xian, Y., et al., 2016 : The nucleation kinetics of ammonium metavanadate precipitated by ammonium chloride, Journal of Crystal Growth, 441, pp.117-123.   DOI
9 Moskalyk, R. R., and Alfantazi, A. M., 2003 : Processing of vanadium: a review, Minerals Engineering, 16(9), pp. 793-805.   DOI
10 Burwell, B., 1961 : Extractive metallurgy of vanadium, JOM, 13(8), pp.562-566.   DOI
11 Agarwal, D. C., Nigam, P. C., and Srivastava, R. D., 1978 : Kinetics of vapor phase oxidation of methyl alcohol over supported V2O5 K2SO4 catalyst. Journal of Catalysis, 55(1), pp.1-9.   DOI
12 Yoon, H. S., Heo, S. J., Kim, C. J., et al., 2020 : Precipitation Characteristics of Ammonium Metavanadate from Sodium Vanadate Solution by Addition of Ammonium Chloride, Journal of the Korean Institute of Resources Recycling, 29(5), pp,28-37.   DOI