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| Study of Rare Earth Separation from Rare Earth Bearing Apatite Concentrates |
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Received:May 07, 2013
Revised:May 07, 2013
Accepted:May 13, 2013
Published Online:November 20, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.12.009 |
| KeyWord:apatite; rare earth; nitric acid leaching; neutralization and precipitation; separation |
| Author | Institution |
| Liu yong |
广州有色金属研究院 |
| Liu zhenzhen |
广州有色金属研究院 |
| Liu Mudan |
广州有色金属研究院 |
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| Abstract: |
| Rare earth was separated from rare earth bearing apatite concentrates by nitric acid leaching and neutralization precipitation. The results show that nitric acid leaching rate of phosphorus and REO is 98.80% and 65.34% respectively. The precipitation rate of phosphorus and REO is 12.07% and 93.78% respectively when nitric acid leaching solution is neutralized and precipitated. The total leaching rate of phosphorus and REO is 87.34% and 4.35% respectively with the simplified flowsheet. |
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