Study on Extraction of Scandium from Sulphuric Acid Leaching Solution of Tungsten Residue AITranslate
Abstract AITranslate
The extraction of scandium from the leaching solution of tungsten residue was carried out by P204-TBP,sulfuric acid eluted the iron in the loaded organic phase and scandium was stripped in the eluted organic phase by sodium hydroxide.The results show that in the system of 5% P204+3% TBP+ kerosene, the extraction rate of scandium is 97.37% through five-stage counter current extraction with O/A ratio of 1∶10,temperature of 25 ℃,and time of 15min.Through five-stage counter current elution by 4 mol/L H2SO4,the elution rate of iron is 98.63%,while the scandium loss rate is less than 1%.The eluted organic phase was stripped with 3mol/L sodium hydroxide.The single-stage stripping rate of scandium reaches 98.31%.By using the method,the purity of crude scandium can reach more than 82%,and the total recovery rate of scandium is more than 95%.
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Basic Information:
DOI：
Chinese Library Classification Number:TF845.1[冶金工程—有色金属冶金]
Citation Information:
The extraction of scandium from the leaching solution of tungsten residue was carried out by P204-TBP,sulfuric acid eluted the iron in the loaded organic phase and scandium was stripped in the eluted organic phase by sodium hydroxide.The results show that in the system of 5% P204+3% TBP+ kerosene, the extraction rate of scandium is 97.37% through five-stage counter current extraction with O/A ratio of 1∶10,temperature of 25 ℃,and time of 15min.Through five-stage counter current elution by 4 mol/L H2SO4,the elution rate of iron is 98.63%,while the scandium loss rate is less than 1%.The eluted organic phase was stripped with 3mol/L sodium hydroxide.The single-stage stripping rate of scandium reaches 98.31%.By using the method,the purity of crude scandium can reach more than 82%,and the total recovery rate of scandium is more than 95%.
quote
| GB/T 7714-2015 | [1] ZHOU Guo-tao, LI Qing-gang, LIU Yong-chang, et al. Study on Extraction of Scandium from Sulphuric Acid Leaching Solution of Tungsten Residue[J]. Rare Metals and Cemented Carbides, 2018(6): 1-9. |
| MLA | [1] ZHOU Guo-tao, et al., "Study on Extraction of Scandium from Sulphuric Acid Leaching Solution of Tungsten Residue." Rare Metals and Cemented Carbides, no. 6, 2018, pp. 1-9. |
| APA | [1] ZHOU Guo-tao, LI Qing-gang, LIU Yong-chang, ZHANG Gui-qing, CAO Zuo-ying, ZENG Li, & GUAN Wen-juan. (2018). Study on Extraction of Scandium from Sulphuric Acid Leaching Solution of Tungsten Residue. Rare Metals and Cemented Carbides(6), 1-9. |
| IEEE | [1] ZHOU Guo-tao, LI Qing-gang, LIU Yong-chang, ZHANG Gui-qing, CAO Zuo-ying, ZENG Li, and GUAN Wen-juan, "Study on Extraction of Scandium from Sulphuric Acid Leaching Solution of Tungsten Residue," Rare Metals and Cemented Carbides, no. 6, pp. 1-9, 2018. keywords: {tungsten residue;scandium;P204-TBP extraction;H2SO4 elution,NaOH stipping;recycle} |