Kinetics on the desiliconization during alkaline leaching of titanium slag
文献类型：会议论文
| 作者 | Liu, Jianhua1,2,3; Chu, Jinglong2,3; Xue, Tianyan2,3; Han, Yanfang4; Qi, Tao2,3 |
| 出版日期 | 1905-07-03 |
| 会议日期 | May 28, 2011 - May 30, 2011 |
| 会议地点 | Changsha, China |
| 关键词 | Activation energy - Sodium hydroxide - Atmospheric pressure - Hydrometallurgy - Kinetics - Leaching - Titanium dioxide |
| 卷号 | 233-235 |
| DOI | 10.4028/www.scientific.net/AMR.233-235.1322 |
| 页码 | 1322-1327 |
| 英文摘要 | Abstract. In order to reduce the silicon content to the maximum allowed value for the production of high-purity titanium dioxide, a hydrometallurgical process on the desiliconization during alkaline leaching of titanium slag under atmospheric pressure was studied. The effect of leaching temperature, initial NaOH concentration, leaching time and mass ratio of alkali to slag, on the efficiency of silicon removal were investigated. The results show that when the mass concentration of NaOH is 30%, mass ratio of alkali to slag 3:1, the leaching temperature 120 掳C and the retention time about 120min, the content of silicon in solid is reduced to 0.45%. Simultaneously, the content of aluminum is reduced to 1.62%, without affecting the content of titanium. The kinetics on the desiliconization during alkaline leaching of titanium slag was carried out. The results show that under the leaching parameters mentioned above, the apparent activation energy is calculated to be 45.43kJ/mol. 漏 (2011) Trans Tech Publications, Switzerland. |
| 资助机构 | Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany |
| 会议录 | 2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
 |
| 学科主题 | Slags |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59526]  |
| 作者单位 | 1.Graduate School of Chinese Academy of Sciences, Beijing 100190, China 2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing 100190, China 3.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 4.School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China |
| 推荐引用方式 GB/T 7714 | Liu, Jianhua,Chu, Jinglong,Xue, Tianyan,et al. Kinetics on the desiliconization during alkaline leaching of titanium slag[C]. 见:. Changsha, China. May 28, 2011 - May 30, 2011. |
入库方式： OAI收割
来源：过程工程研究所
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