Performance Comparison of P204/P507 for Extraction Separation of Vanadium and Iron in Sulfuric Acid System AITranslate
Abstract AITranslate
Iron ions and other impurities existing in the leaching solution of vanadium-containing minerals seriously affect the separation and enrichment of vanadium.In this paper,P204 and P507 were used as extractants to extract vanadium from the simulated leaching solution containing V(Ⅳ)and Fe(Ⅱ)by solvent extraction.The effects of pH value,vanadium concentration and iron concentration on the vanadium extraction effect and vanadium-iron separation effect were investigated.At the same time,the structural changes of the organic phase before and after extraction were also analyzed.The results show that the effect of pH on vanadium extraction and vanadium-iron separation is significant.P204 is more suitable for the vanadium-iron separation under strongly acidic conditions(pH1),while P507 is more appropriate under sub-strongly acidic conditions(pH=2).When the pH value is 2,the concentration of V4+is 0.07 g/L,the concentration of Fe2+is 14 g/L,the O/A ratio is 1.5,the temperature is 25°C,and the stirring time is 10 min,the extraction rate of vanadium by P507 reaches above 99%,and the extraction rate of iron is below 5%,showing a good separation effect of vanadium and iron.The infrared spectrum shows that the extraction of vanadium by P204 and P507 is a cation exchange process,which is presented by the replacement of H~+with VO2+in P—OH functional group of the extractant.
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Basic Information:
DOI：
Chinese Library Classification Number:TF841.3[冶金工程—有色金属冶金]
Citation Information:
Iron ions and other impurities existing in the leaching solution of vanadium-containing minerals seriously affect the separation and enrichment of vanadium.In this paper,P204 and P507 were used as extractants to extract vanadium from the simulated leaching solution containing V(Ⅳ)and Fe(Ⅱ)by solvent extraction.The effects of pH value,vanadium concentration and iron concentration on the vanadium extraction effect and vanadium-iron separation effect were investigated.At the same time,the structural changes of the organic phase before and after extraction were also analyzed.The results show that the effect of pH on vanadium extraction and vanadium-iron separation is significant.P204 is more suitable for the vanadium-iron separation under strongly acidic conditions(pH1),while P507 is more appropriate under sub-strongly acidic conditions(pH=2).When the pH value is 2,the concentration of V4+is 0.07 g/L,the concentration of Fe2+is 14 g/L,the O/A ratio is 1.5,the temperature is 25°C,and the stirring time is 10 min,the extraction rate of vanadium by P507 reaches above 99%,and the extraction rate of iron is below 5%,showing a good separation effect of vanadium and iron.The infrared spectrum shows that the extraction of vanadium by P204 and P507 is a cation exchange process,which is presented by the replacement of H~+with VO2+in P—OH functional group of the extractant.
quote
| GB/T 7714-2015 | [1] MA Chen, ZHU Xiao-bo, LI Wang, et al. Performance Comparison of P204/P507 for Extraction Separation of Vanadium and Iron in Sulfuric Acid System[J]. Rare Metals and Cemented Carbides, 2023(3): 18-22. |
| MLA | [1] MA Chen, et al., "Performance Comparison of P204/P507 for Extraction Separation of Vanadium and Iron in Sulfuric Acid System." Rare Metals and Cemented Carbides, no. 3, 2023, pp. 18-22. |
| APA | [1] MA Chen, ZHU Xiao-bo, LI Wang, & LIU Yue. (2023). Performance Comparison of P204/P507 for Extraction Separation of Vanadium and Iron in Sulfuric Acid System. Rare Metals and Cemented Carbides(3), 18-22. |
| IEEE | [1] MA Chen, ZHU Xiao-bo, LI Wang, and LIU Yue, "Performance Comparison of P204/P507 for Extraction Separation of Vanadium and Iron in Sulfuric Acid System," Rare Metals and Cemented Carbides, no. 3, pp. 18-22, 2023. keywords: {vanadium-iron separation;solvent extraction;P204;P507;sulfuric acid system;extraction mechanism;infrared spectrum} |