Study on Tungsten Extraction Removal from High Concentration Sodium Molybdate Solution AITranslate
Abstract AITranslate
Primary amine extractant HBDW-201 was used to selectively extract tungsten from high concen- tration sodium molybdate solution. The effects were investigated of extractant composition, reaction tem- perature,contact time,feed pH value,and phase ratio on extraction separation of tungsten and molybde- num. The conditions of Mo elution and W stripping from loaded organic phase were also studied. The re- sults show that tungsten extraction rate can be close to 100% and the molybdenum extraction rate reaches 13.31% after the four-stage countercurrent extraction under the conditions of extractant composition of 20% HBDW-201 and sulfonated kerosene,feed solution containing about 30 g/L WO3,100 g/L Mo,feed pH= 7.55,and phase ratio O/A= 1.5 ： 1,temperature of 25 ℃ and contact time of 10 min,and the finally obtained sodium molybdate solution contains more than 80 g/L Mo and less than 5 × 10^- 6 g/L WO3. Thus, deep removal of tungsten from high concentration sodium molybdate solution can be achieved with this method. Using 0.6 mol/L NaOH as the eluent,Mo elution rate is 61.86%,W elution rate is 11.38% andthe mass ratio of Mo and W is 2.30 in washing water by washing the organic phase under the conditions of phase ratio O/A= 5 ： 1 and 30 ℃ Using 2 mol/L NaOH as stripping agent under the conditions of O/A= 5： 1,30 ℃ temperature and 10 rain contact time,W single-stage stripping rate reaches over 99% ,Mo strip- ping rate reaches 97.39% ,and the stripping solution with 79.67 g/L WO3 and 16.30 g/L Mo is obtained, which could be further treated by the existing tungsten and molybdenum separation process.
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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:
Primary amine extractant HBDW-201 was used to selectively extract tungsten from high concen- tration sodium molybdate solution. The effects were investigated of extractant composition, reaction tem- perature,contact time,feed pH value,and phase ratio on extraction separation of tungsten and molybde- num. The conditions of Mo elution and W stripping from loaded organic phase were also studied. The re- sults show that tungsten extraction rate can be close to 100% and the molybdenum extraction rate reaches 13.31% after the four-stage countercurrent extraction under the conditions of extractant composition of 20% HBDW-201 and sulfonated kerosene,feed solution containing about 30 g/L WO3,100 g/L Mo,feed pH= 7.55,and phase ratio O/A= 1.5 ： 1,temperature of 25 ℃ and contact time of 10 min,and the finally obtained sodium molybdate solution contains more than 80 g/L Mo and less than 5 × 10^- 6 g/L WO3. Thus, deep removal of tungsten from high concentration sodium molybdate solution can be achieved with this method. Using 0.6 mol/L NaOH as the eluent,Mo elution rate is 61.86%,W elution rate is 11.38% andthe mass ratio of Mo and W is 2.30 in washing water by washing the organic phase under the conditions of phase ratio O/A= 5 ： 1 and 30 ℃ Using 2 mol/L NaOH as stripping agent under the conditions of O/A= 5： 1,30 ℃ temperature and 10 rain contact time,W single-stage stripping rate reaches over 99% ,Mo strip- ping rate reaches 97.39% ,and the stripping solution with 79.67 g/L WO3 and 16.30 g/L Mo is obtained, which could be further treated by the existing tungsten and molybdenum separation process.
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| GB/T 7714-2015 | [1] WANG Ao-nan, XIAO Lian-sheng, CAO Zuo-ying, et al. Study on Tungsten Extraction Removal from High Concentration Sodium Molybdate Solution[J]. Rare Metals and Cemented Carbides, 2017(2): 13-19. |
| MLA | [1] WANG Ao-nan, et al., "Study on Tungsten Extraction Removal from High Concentration Sodium Molybdate Solution." Rare Metals and Cemented Carbides, no. 2, 2017, pp. 13-19. |
| APA | [1] WANG Ao-nan, XIAO Lian-sheng, CAO Zuo-ying, ZHANG Gui-qing, LI Qing-gang, CENG Li, & GUAN Wen-juan. (2017). Study on Tungsten Extraction Removal from High Concentration Sodium Molybdate Solution. Rare Metals and Cemented Carbides(2), 13-19. |
| IEEE | [1] WANG Ao-nan, XIAO Lian-sheng, CAO Zuo-ying, ZHANG Gui-qing, LI Qing-gang, CENG Li, and GUAN Wen-juan, "Study on Tungsten Extraction Removal from High Concentration Sodium Molybdate Solution," Rare Metals and Cemented Carbides, no. 2, pp. 13-19, 2017. keywords: {tungsten;molybdenum;high concentration sodium molybdate;primary amine;extraction;separa- tion;stripping} |