Technological Study on Rare Earth and Niobium Extraction from Tailings of Beneficiated Complex Rare Metal Associated Ore AITranslate
Abstract AITranslate
The process was studied of rare earth and niobium extraction from tailings of beneficiated complex rare metal associated ore.The results indicate that rare earth and niobium can be efficiently leached by sulfuric acid acidification-staged leaching.When the mass ratio of acid to ore is 1.8,acidification temperature is 350℃,acidification time is 120 min,the liquid-solid ratio of the first leaching stage is 1∶1,leaching temperature is 80℃,leaching time is 90 min,the liquid-solid ratio of the second leaching stage is 8∶1,leaching temperature is 25 ℃ and leaching time is 9 0min,the REO and Nb2O5 contents in the leached tailings are 0.96% and 0.75%,respectively,and the leaching rates of rare earth and niobium are 85.03% and 80.88%,respectively.Niobium leaching rate is 80.26% in the first stage and rare earth leaching rate is83.85%in the second stage.The recovery of niobium and rare earth can be realized by separately treating with the leaching solution from the first stage and the second stage.
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Basic Information:
DOI：
Chinese Library Classification Number:TD955[矿业工程—选矿]
Citation Information:
The process was studied of rare earth and niobium extraction from tailings of beneficiated complex rare metal associated ore.The results indicate that rare earth and niobium can be efficiently leached by sulfuric acid acidification-staged leaching.When the mass ratio of acid to ore is 1.8,acidification temperature is 350℃,acidification time is 120 min,the liquid-solid ratio of the first leaching stage is 1∶1,leaching temperature is 80℃,leaching time is 90 min,the liquid-solid ratio of the second leaching stage is 8∶1,leaching temperature is 25 ℃ and leaching time is 9 0min,the REO and Nb2O5 contents in the leached tailings are 0.96% and 0.75%,respectively,and the leaching rates of rare earth and niobium are 85.03% and 80.88%,respectively.Niobium leaching rate is 80.26% in the first stage and rare earth leaching rate is83.85%in the second stage.The recovery of niobium and rare earth can be realized by separately treating with the leaching solution from the first stage and the second stage.
quote
| GB/T 7714-2015 | [1] LIU Yong, LIU Mu-dan, LIU Zhen-zhen. Technological Study on Rare Earth and Niobium Extraction from Tailings of Beneficiated Complex Rare Metal Associated Ore[J]. Rare Metals and Cemented Carbides, 2015(1): 21-25. |
| MLA | [1] LIU Yong, et al., "Technological Study on Rare Earth and Niobium Extraction from Tailings of Beneficiated Complex Rare Metal Associated Ore." Rare Metals and Cemented Carbides, no. 1, 2015, pp. 21-25. |
| APA | [1] LIU Yong, LIU Mu-dan, & LIU Zhen-zhen. (2015). Technological Study on Rare Earth and Niobium Extraction from Tailings of Beneficiated Complex Rare Metal Associated Ore. Rare Metals and Cemented Carbides(1), 21-25. |
| IEEE | [1] LIU Yong, LIU Mu-dan, and LIU Zhen-zhen, "Technological Study on Rare Earth and Niobium Extraction from Tailings of Beneficiated Complex Rare Metal Associated Ore," Rare Metals and Cemented Carbides, no. 1, pp. 21-25, 2015. keywords: {tailing of beneficiated rare metal associated ore;sulfuric acid acidification-staged leaching;rare earth extraction;niobium extraction} |