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| Process Mineralogy of Niobium-tantalum Ore in Sichuan |
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Received:November 12, 2015
Revised:November 17, 2015
Accepted:November 18, 2015
Published Online:August 31, 2016
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| DOI： |
| KeyWord:process mineralogy; niobium-tantalum ore; pyrochlore; occurrence state |
| Author | Institution |
| WANG Mingyan |
State Key Laboratory of Science and Technology of Mineral Processing,Beijing Key Laboratory of Metal Mineral Resources Test and Evaluation |
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| Abstract: |
| Based on process mineralogy study, the grade of Nb2O5 and Ta2O5 is 0.065% and 0.0034% respectively in sichuan niobium-tantalum ore. Niobium mainly occurs in pyrochlore, followed by fergusonite, a few exists in manganocolumbite, fersmite, loparite and so on; tantalum mainly occurs in niobium-containing minerals such as pyrochlore. The disseminated size of pyrochlore is mainly fine-grained, and the percentage of -0.074mm is 77.43%. Results show that the ore belongs to low-grade refractory ore, with low grade, variety of occurrence state and fine grain. |
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