|
| Distribution of RE during Acid Leaching of RE-bearing Phosphorus Concentrates |
|
Received:June 17, 2015
Revised:June 19, 2015
Accepted:June 23, 2015
Published Online:October 19, 2015
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2015.11.009 |
| KeyWord:phosphorus concentrate, rare earth, acid leaching, recovery |
| Author | Institution |
| zhao ping |
贵州省地质矿产中心实验室 贵州;贵州大学材料与冶金学院 贵州 |
| jin hui xin |
贵州省冶金工程与过程节能重点实验室 贵州;贵州省冶金工程与过程节能重点实验室 贵州;贵州大学材料与冶金学院 贵州 |
| MAO Xiao-hao |
贵州大学 |
| wang mei long |
贵州大学材料与冶金学院 |
| GU Song |
贵州大学 |
| ZHENG Xiao-qian |
贵州大学 |
|
| Hits: 2080 |
| Download times: 2169 |
| Abstract: |
| Enrichment and distribution of rare earth (RE) during acid leaching of RE-bearing phosphorus concentrates under different initial phosphoric acid concentration and ratio of liquid to solid (L/S) were investigated. The results show that high initial phosphoric acid concentration and L/S can improve recovery of RE from solution, but enrichment RE in solution tends to rise firstly and then drop along with rising of L/S. Total recovery of ∑REO and P2O5 is 68.01% and 90% above respectively under the optimum leaching conditions including initial phosphoric acid concentration of 25%, excessive coefficient of sulfate of 1.0, L/S of 6, reaction temperature of 75 ℃, reaction duration of 3 h, and slurry concentration of 58%. |
| Close |
|
|
|