Vanadium Separation from Sodium Tungstate Solution by Solvent Extraction with Quaternary Ammonium Salt of N263 AITranslate
Abstract AITranslate
Vanadium was selectively separated by solvent extraction from vanadium-containing sodium tung- state solution. The effects were investigated of extraction system composition,initial feed pH,phase ratio, oscillation time and temperature on vanadium extraction, extraction stages and stripping system were de- termined,and the effect of recycling extractant was also investigated. The experimental results show that employing the organic solution containing 20% N263, 40% 2-octanol and 40% sulfonated kerosene to sep- arate vanadium from the solution with initial pH of 8.70,66.21 g/L WO3 and 11.46 g/L V2O3 ,V2O5 ex- traction rate is more than 99.95% ,WO3 co-extraction rate is only about 8.00%, and the concentration of V2O5 in raffinate can be below 10 mg/L after 6-stage countercurrent extraction with O/A ratio of 1/2.5 at room temperature. The loaded organic phase can be stripped by using 1.5 mol/L NaCl and 2 mol/L NaOH solution,and the single-stage stripping rate of V2O5 reaches 95.24% while that of WO3 reaches 100% with O/A ratio of 3/1 at room temperature. The extractant basically has the same extraction effect for vanadium and tungsten during recycling.
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Basic Information:
DOI：
Chinese Library Classification Number:TF804.2[冶金工程—有色金属冶金]
Citation Information:
Vanadium was selectively separated by solvent extraction from vanadium-containing sodium tung- state solution. The effects were investigated of extraction system composition,initial feed pH,phase ratio, oscillation time and temperature on vanadium extraction, extraction stages and stripping system were de- termined,and the effect of recycling extractant was also investigated. The experimental results show that employing the organic solution containing 20% N263, 40% 2-octanol and 40% sulfonated kerosene to sep- arate vanadium from the solution with initial pH of 8.70,66.21 g/L WO3 and 11.46 g/L V2O3 ,V2O5 ex- traction rate is more than 99.95% ,WO3 co-extraction rate is only about 8.00%, and the concentration of V2O5 in raffinate can be below 10 mg/L after 6-stage countercurrent extraction with O/A ratio of 1/2.5 at room temperature. The loaded organic phase can be stripped by using 1.5 mol/L NaCl and 2 mol/L NaOH solution,and the single-stage stripping rate of V2O5 reaches 95.24% while that of WO3 reaches 100% with O/A ratio of 3/1 at room temperature. The extractant basically has the same extraction effect for vanadium and tungsten during recycling.
quote
| GB/T 7714-2015 | [1] LI Qiang, XIAO Lian-sheng, ZHANG Gui-qing, et al. Vanadium Separation from Sodium Tungstate Solution by Solvent Extraction with Quaternary Ammonium Salt of N263[J]. Rare Metals and Cemented Carbides, 2017(2): 20-27. |
| MLA | [1] LI Qiang, et al., "Vanadium Separation from Sodium Tungstate Solution by Solvent Extraction with Quaternary Ammonium Salt of N263." Rare Metals and Cemented Carbides, no. 2, 2017, pp. 20-27. |
| APA | [1] LI Qiang, XIAO Lian-sheng, ZHANG Gui-qing, CAO Zuo-ying, LI Qing-gang, CENG Li, & GUAN Wen-juan. (2017). Vanadium Separation from Sodium Tungstate Solution by Solvent Extraction with Quaternary Ammonium Salt of N263. Rare Metals and Cemented Carbides(2), 20-27. |
| IEEE | [1] LI Qiang, XIAO Lian-sheng, ZHANG Gui-qing, CAO Zuo-ying, LI Qing-gang, CENG Li, and GUAN Wen-juan, "Vanadium Separation from Sodium Tungstate Solution by Solvent Extraction with Quaternary Ammonium Salt of N263," Rare Metals and Cemented Carbides, no. 2, pp. 20-27, 2017. keywords: {sodium tungstate solution;vanadium;separation;solvent extraction;stripping} |