Simultaneous extraction of uranium and niobium from a low-grade natural betafite ore
This work efficiently investigated the simultaneous extraction of uranium (U) and niobium (Nb) from a low-grade natural betafite ore by using novel technique, namely, sulfatizing roasting coupled to sulfuric acid leaching process. First, the sulfatizing roasting was adopted to alert the properties o...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-02-01
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| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2022-0260 |
| _version_ | 1811159451789426688 |
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| author | Lv Zihu Zhao Dengkui Sun Qiliang Liu Changmiao Cheng Hongwei Yang Fei Zhang Bo |
| author_facet | Lv Zihu Zhao Dengkui Sun Qiliang Liu Changmiao Cheng Hongwei Yang Fei Zhang Bo |
| author_sort | Lv Zihu |
| collection | DOAJ |
| description | This work efficiently investigated the simultaneous extraction of uranium (U) and niobium (Nb) from a low-grade natural betafite ore by using novel technique, namely, sulfatizing roasting coupled to sulfuric acid leaching process. First, the sulfatizing roasting was adopted to alert the properties of the raw ore, aiming to destroy the crystal structure of the ores and convert the valuable elements to soluble sulfate compounds. Moreover, the influences of the parameters affecting the sulfatizing roasting including roasting temperature, amount of sulfuric acid, and roasting time were studied. The results indicated that the extraction of U and Nb from the ores with sulfatizing roasting was an order of magnitude higher than the extraction of U and Nb from the ores without roasting under the same test conditions. Then, the effects of amount of sulfuric acid concentration, liquid–solid ratio, leaching temperature, and leaching time on U and Nb recoveries were systematically investigated. To verify the process parameters of extracting U and Nb for the novel technique, three validating tests were conducted, and the results showed that over 95% of U and 85% of Nb were leached out under the optimal conditions. The novel technique was proven as advantageous since it conspicuously improved the leaching rates of U and Nb and promoted the refractory natural betafite ores to become an economic source for uranium. |
| first_indexed | 2024-04-10T05:41:21Z |
| format | Article |
| id | doaj.art-bb17a299811342cba09e26c71c6b2f49 |
| institution | Directory Open Access Journal |
| issn | 2191-0324 |
| language | English |
| last_indexed | 2024-04-10T05:41:21Z |
| publishDate | 2023-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-bb17a299811342cba09e26c71c6b2f492023-03-06T10:24:53ZengDe GruyterHigh Temperature Materials and Processes2191-03242023-02-01421pp. 667110.1515/htmp-2022-0260Simultaneous extraction of uranium and niobium from a low-grade natural betafite oreLv Zihu0Zhao Dengkui1Sun Qiliang2Liu Changmiao3Cheng Hongwei4Yang Fei5Zhang Bo6Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou, 450006, PR ChinaZhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou, 450006, PR ChinaZhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou, 450006, PR ChinaZhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou, 450006, PR ChinaZhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou, 450006, PR ChinaKey Laboratory of Radioactive and Rare Scattered Mineral Comprehensive Utilization, Ministry of Land and Resources, Shaoguan 512026, PR ChinaZhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou, 450006, PR ChinaThis work efficiently investigated the simultaneous extraction of uranium (U) and niobium (Nb) from a low-grade natural betafite ore by using novel technique, namely, sulfatizing roasting coupled to sulfuric acid leaching process. First, the sulfatizing roasting was adopted to alert the properties of the raw ore, aiming to destroy the crystal structure of the ores and convert the valuable elements to soluble sulfate compounds. Moreover, the influences of the parameters affecting the sulfatizing roasting including roasting temperature, amount of sulfuric acid, and roasting time were studied. The results indicated that the extraction of U and Nb from the ores with sulfatizing roasting was an order of magnitude higher than the extraction of U and Nb from the ores without roasting under the same test conditions. Then, the effects of amount of sulfuric acid concentration, liquid–solid ratio, leaching temperature, and leaching time on U and Nb recoveries were systematically investigated. To verify the process parameters of extracting U and Nb for the novel technique, three validating tests were conducted, and the results showed that over 95% of U and 85% of Nb were leached out under the optimal conditions. The novel technique was proven as advantageous since it conspicuously improved the leaching rates of U and Nb and promoted the refractory natural betafite ores to become an economic source for uranium.https://doi.org/10.1515/htmp-2022-0260uraniumniobiumbetafiteleachingsulfatizing roasting |
| spellingShingle | Lv Zihu Zhao Dengkui Sun Qiliang Liu Changmiao Cheng Hongwei Yang Fei Zhang Bo Simultaneous extraction of uranium and niobium from a low-grade natural betafite ore High Temperature Materials and Processes uranium niobium betafite leaching sulfatizing roasting |
| title | Simultaneous extraction of uranium and niobium from a low-grade natural betafite ore |
| title_full | Simultaneous extraction of uranium and niobium from a low-grade natural betafite ore |
| title_fullStr | Simultaneous extraction of uranium and niobium from a low-grade natural betafite ore |
| title_full_unstemmed | Simultaneous extraction of uranium and niobium from a low-grade natural betafite ore |
| title_short | Simultaneous extraction of uranium and niobium from a low-grade natural betafite ore |
| title_sort | simultaneous extraction of uranium and niobium from a low grade natural betafite ore |
| topic | uranium niobium betafite leaching sulfatizing roasting |
| url | https://doi.org/10.1515/htmp-2022-0260 |
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