|
| Purification and Separation of Aluminum from Nitric Acid Leached Lixivium of Laterite-nickel Ore |
|
Received:December 10, 2014
Revised:December 12, 2014
Accepted:December 15, 2014
Published Online:April 21, 2015
|
| View Full Text View/Add Comment Download reader |
| DOI：10.3969/j.issn.1007-7545.2015.05.004 |
| KeyWord:laterite-nickel ore; nitrate leach liquor; aluminum; purification; filtration |
| Author | Institution |
| MA Bao-zhong |
北京矿冶研究总院 |
| YANG Wei-jiao |
北京矿冶研究总院 |
| YANG-Bo |
北京矿冶研究总院 |
| CHEN Yong-qiang |
北京矿冶研究总院 |
| WANG Cheng-yan |
北京矿冶研究总院 |
|
| Hits: 2414 |
| Download times: 2235 |
| Abstract: |
| Purification and separation of aluminum from nitric acid leached lixivium of laterite-nickel ore by neutralization precipitation were investigated. The effects of reaction temperature, pH value before ageing, and ageing time on aluminum removal were studied. The results show that vaccum filtration rate of aluminum precipitate slurry after adding 5% CaSO4 is 0.109 m3/(h?m2), which is 5.4 times higher than that of traditional method, loss rate of nickel and cobalt in obtained aluminum precipitate slag is 2% below under the optimum conditions including reaction temperature of 40 ℃, pH value before aging of 3.9~4.1, aging time of 30 min, and filtration negative pressure of -0.04 MPa. |
| Close |