|
| Study on Separation of Heavy Rare Earth by Ion Exchange Chromatography with Amino Metylene Phosphonic Acid Resin |
|
Received:July 30, 2012
Revised:August 01, 2012
Accepted:August 02, 2012
Published Online:November 26, 2012
|
| View Full Text View/Add Comment Download reader |
| DOI：10.3969/j.issn.1007-7545.2012.12.009 |
| KeyWord:amino methylene phosphonic acid resin; heavy rare earth; ion exchange chromatography; separation; Tm; Yb; Lu |
| Author | Institution |
| JIAO Yunfen |
江西理工大学 |
| HE Xiaolin |
福建上杭赣闽有色金属实业发展有限公司 |
| LIAO ChunFa |
江西理工大学冶金与化学工程学院 |
| JIANG PingGuo |
江西理工大学冶金与化学工程学院 |
|
| Hits: 3031 |
| Download times: 3360 |
| Abstract: |
| The dynamic absorption and elution of heavy rare earth (thulium, ytterbium and lutetium rich material) were studied by ion exchange chromatography with amino methylene phosphonic acid resin. The effects of concentration of stripping agents, acidity, effluent velocity and temperature on elution of Tm-Yb-Lu were investigated. The results show that the absorption rate is improved with the raw liquid velocity of 0.1 mL/ (cm2?min). Tm, Yb and Lu could be separated from each other completely under the conditions including flow rate of 0.3 mL/(cm2?min), temperature of 30 ℃, pH of 8.0, and EDTA concentration of 0.02 mol/L. |
| Close |