Yin Zhaoqian, Li Qianwen, Peng Yicun, Wu Liuzhu, Pan Shaoyan. Study on Preparation of Sodium Metavanadate[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(2): 17-23. doi: 10.7513/j.issn.1004-7638.2015.02.004
Citation:
Yin Zhaoqian, Li Qianwen, Peng Yicun, Wu Liuzhu, Pan Shaoyan. Study on Preparation of Sodium Metavanadate[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(2): 17-23. doi: 10.7513/j.issn.1004-7638.2015.02.004
Yin Zhaoqian, Li Qianwen, Peng Yicun, Wu Liuzhu, Pan Shaoyan. Study on Preparation of Sodium Metavanadate[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(2): 17-23. doi: 10.7513/j.issn.1004-7638.2015.02.004
Citation:
Yin Zhaoqian, Li Qianwen, Peng Yicun, Wu Liuzhu, Pan Shaoyan. Study on Preparation of Sodium Metavanadate[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(2): 17-23. doi: 10.7513/j.issn.1004-7638.2015.02.004
1. Pangang Group Research Institute Co., Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China;
2. Vanadium Industry Company, Pangang Group, Panzhihua 617023, Sichuan, China
Sodium metavanadate with more than 99.5% purity was prepared through dissolution for impurities and ammonia removal and dilution crystallization,with ammonium polyvanadate as raw material.The results show that the pH value at terminal point is the main influence factor for the time of ammonia removal in the solution. The optimum parameters for dilution crystallization are as follows: concentration of vanadium 150~200 g /L,pH 7.3~8.1,volume ratio of crystallization agent and solution 1:1,and crystallization period 1 h. The yield of vanadium can reach 97.7%.
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