|
| Fluoride Leaching Test from Spent Pot Lining of Aluminum Electrolysis Cell |
|
Received:October 14, 2014
Revised:October 18, 2014
Accepted:October 20, 2014
Published Online:February 15, 2015
|
| View Full Text View/Add Comment Download reader |
| DOI：10.3969/j.issn.1007-7545.2015.03.008 |
| KeyWord:aluminum electrolysis cell; spent pot lining; fluoride; leaching; comprehensive utilization |
| Author | Institution |
| ZHAO Junxue |
西安建筑科技大学 冶金工程学院 |
| ZHANG Bo |
西安建筑科技大学 冶金工程学院 |
| BAO Longfei |
陕西煎茶岭镍业有限公司 |
| TANG Wendan |
西安建筑科技大学 冶金工程学院 |
| SHI Ruimeng |
西安建筑科技大学 冶金工程学院 |
| FANG Zhao |
西安建筑科技大学 冶金工程学院 |
|
| Hits: 2262 |
| Download times: 3130 |
| Abstract: |
| Based on XRD analysis and component analysis, spent pot lining (SPL) of aluminum electrolysis cell was leached to recover fluoride. The effects of ratio of liquid to solid (L/S), particle size and temperature on leaching rate of fluoride were investigated. The results show that leaching rate of soluble F- with water is 97.8% under the optimum conditions including particle size of 0.075~0.096 mm, L/S of 55︰1, temperature of 85 ℃, and leaching duration of 2 h. The content of soluble fluoride in residue is 45 mg/L which can be disposed as non-hazardous waste. |
| Close |