Study on Tantalum and Niobium Recovery by Acid Leaching and Sodium Alkali Fusing from Tungsten Residue AITranslate
Abstract AITranslate
The enrichment and recovery of tantalum and niobium through acid leaching and sodium alkali fusing from tungsten residue is studied. When 5 % HCl consumption amounts to 2.5 times of the theoretical value,reaction temperature is 40 ℃ and reaction time is 30 min,72.1% of the iron and 74.7% of the manganese can be removed and the recovery of tantalum and niobium are 92% and 84.6% respectively. Then the acid leach residue was fused in NaOH and Na2CO3. When the mass ratio of acid leach residue to alkali is 3 ： 2 and reaction time is 60 min,the content of Ta2O5 and Nb2O5 in the product could be 0.48% and 2.74% respectively. And the recovery of tantalum and niobium are 83 % and 74.8 % respectively. The total recoveries of tantalum and niobium are 76.4% and 63.3% respectively. It shows that tantalum and niobium can be effectively enriched and recovered from tungsten residue by acid leach and sodium alkali fusing.
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Basic Information:
DOI：
Chinese Library Classification Number:TF841.6[冶金工程—有色金属冶金]
Citation Information:
The enrichment and recovery of tantalum and niobium through acid leaching and sodium alkali fusing from tungsten residue is studied. When 5 % HCl consumption amounts to 2.5 times of the theoretical value,reaction temperature is 40 ℃ and reaction time is 30 min,72.1% of the iron and 74.7% of the manganese can be removed and the recovery of tantalum and niobium are 92% and 84.6% respectively. Then the acid leach residue was fused in NaOH and Na2CO3. When the mass ratio of acid leach residue to alkali is 3 ： 2 and reaction time is 60 min,the content of Ta2O5 and Nb2O5 in the product could be 0.48% and 2.74% respectively. And the recovery of tantalum and niobium are 83 % and 74.8 % respectively. The total recoveries of tantalum and niobium are 76.4% and 63.3% respectively. It shows that tantalum and niobium can be effectively enriched and recovered from tungsten residue by acid leach and sodium alkali fusing.
quote
| GB/T 7714-2015 | [1] ZHANG Li, ZHONG Hui, DAI Yan-yang. Study on Tantalum and Niobium Recovery by Acid Leaching and Sodium Alkali Fusing from Tungsten Residue[J]. Rare Metals and Cemented Carbides, 2008(2): 6-9. |
| MLA | [1] ZHANG Li, et al., "Study on Tantalum and Niobium Recovery by Acid Leaching and Sodium Alkali Fusing from Tungsten Residue." Rare Metals and Cemented Carbides, no. 2, 2008, pp. 6-9. |
| APA | [1] ZHANG Li, ZHONG Hui, & DAI Yan-yang. (2008). Study on Tantalum and Niobium Recovery by Acid Leaching and Sodium Alkali Fusing from Tungsten Residue. Rare Metals and Cemented Carbides(2), 6-9. |
| IEEE | [1] ZHANG Li, ZHONG Hui, and DAI Yan-yang, "Study on Tantalum and Niobium Recovery by Acid Leaching and Sodium Alkali Fusing from Tungsten Residue," Rare Metals and Cemented Carbides, no. 2, pp. 6-9, 2008. keywords: {tungsten residue;acid leach;sodium alkali fusing;tantalum and niobium;recovery} |