|
| Preparation of Nickel-Niobium Alloy Powder Precursor from Niobium Ore |
|
Received:October 30, 2016
Revised:November 02, 2016
Accepted:November 04, 2016
Published Online:January 22, 2017
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2017.02.010 |
| KeyWord:niobium ore; nickel-niobium oxide; sulfuric acid roasting; leaching rate |
| Author | Institution |
| sun ying |
1. 省部共建高品质特殊钢冶金与制备国家重点实验室 |
| he qi |
1. 省部共建高品质特殊钢冶金与制备国家重点实验室 |
| li qiu ju |
1. 省部共建高品质特殊钢冶金与制备国家重点实验室 |
|
| Hits: 2106 |
| Download times: 2244 |
| Abstract: |
| Niobium-nickel alloy powder precursor NiNbO6 was prepared directly from niobium ore. Effects of grinding size, roasting temperature, roasting time, ratio of acid to ore, and sulfuric acid concentration on niobium leaching rate during sulfuric acid roasting were investigated. The results show that niobium leaching rate is 94% above with niobium recovery of 93% under the optimum conditions including grinding size of -0.025 mm, roasting temperature of 300 ℃, roasting time of 3 h, ratio of acid to ore of 2.5, and sulfuric acid concentration of 10 mol/L. |
| Close |
|
|
|