Li Xin, Li Ming, Liang Bin. Removal of Vanadium from Acidic Chromium Solution by Ferric Sulfate[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(4): 20-24. doi: 10.7513/j.issn.1004-7638.2016.04.004
Citation:
Li Xin, Li Ming, Liang Bin. Removal of Vanadium from Acidic Chromium Solution by Ferric Sulfate[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(4): 20-24. doi: 10.7513/j.issn.1004-7638.2016.04.004
Li Xin, Li Ming, Liang Bin. Removal of Vanadium from Acidic Chromium Solution by Ferric Sulfate[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(4): 20-24. doi: 10.7513/j.issn.1004-7638.2016.04.004
Citation:
Li Xin, Li Ming, Liang Bin. Removal of Vanadium from Acidic Chromium Solution by Ferric Sulfate[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(4): 20-24. doi: 10.7513/j.issn.1004-7638.2016.04.004
1. School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China;
2. State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Research Institute Co., Ltd., Panzhihua 617000, Sichuan, China
Received Date: 2016-03-25 Available Online:
2023-12-04
The vanadium in acidic chromium solution,produced by the processes of sodium roasting for vanadium slag containing high concentration of chromium,leaching the roasted vanadium slag then precipitating vanadium from the leaching solution,should be removed to obtain qualified chromium products.Using ferric sulfate as agent for vanadium removal,the effects of addition amount of ferric sulfate,reaction temperature and pH value on the efficiency of vanadium removal were investigated. The results show that with mole ratio of Fe/V=9,reaction at 80℃ and 6~7 of terminal point pH,97% of the removal efficiency for vanadium can be obtained with less than 0.08 g/L of residual vanadium in the solution and less than 3.7% of chromium loss rate,which satisfies the requirements for the subsequent production of sodium dichromate or chromium sesquioxide.
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