Removing of Si in the NaOH molten salt reaction of titanium slag to produce TiO2
文献类型：会议论文
| 作者 | Han, Yanfang1,2; Sun, Tichang2; Li, Jie1; Wang, Lina1; Xue, Tianyan1; Qi, Tao1 |
| 出版日期 | 1905-07-04 |
| 会议日期 | December 16, 2011 - December 18, 2011 |
| 会议地点 | Guilin, China |
| 关键词 | Cleaning - Fused salts - Reaction rates - Silica - Temperature - Silicon - Liquids - Silicates - Slags - Titanium - Titanium dioxide |
| 卷号 | 418-420 |
| DOI | 10.4028/www.scientific.net/AMR.418-420.387 |
| 页码 | 387-392 |
| 英文摘要 | NaOH solution was utilized in the molten salt reaction of titanium slag for investigating desiliconization effects. The thermodynamic behaviors of Si in the reaction system was examined to explore the impacts of molten salt reaction conditions on the conversion rates of the foreign substance Si and the target element Ti. On this basis, the influences of NaOH concentration, liquid-solid ratio, cleaning temperature and cleaning time on Si removing rate were discussed. The experimental results showed that, Si reacted with NaOH to produce sodium silicate was feasible in terms of thermodynamics within the temperature interval 400-1000K. 3Na2O·2SiO2, 2Na 2O·SiO2 could stably exist under high reaction temperature. As the reaction time extended and temperature rose, the conversion rate of Si was increasing. In the process of Si removing by NaOH cleaning of molten salt reaction products, as NaOH concentration, liquid-solid ratio, cleaning temperature and cleaning time increased, Si removing rate became larger. The optimum alkali cleaning conditions were: NaOH concentration 150g/l, liquid-solid ratio 3:1, cleaning temperature 50掳C and cleaning time 60min, then the desiliconization rate reached 61.16%. 漏 (2012) Trans Tech Publications, Switzerland. |
| 资助机构 | Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany |
| 会议录 | 2nd International Conference on Advances in Materials and Manufacturing, ICAMMP 2011
 |
| 学科主题 | Sodium Hydroxide |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59456]  |
| 作者单位 | 1.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology (NELHCPT), Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 2.Civil and Environment Engineering School, University of Science and Technology Beijing, Beijing 100083, China |
| 推荐引用方式 GB/T 7714 | Han, Yanfang,Sun, Tichang,Li, Jie,et al. Removing of Si in the NaOH molten salt reaction of titanium slag to produce TiO2[C]. 见:. Guilin, China. December 16, 2011 - December 18, 2011. |
入库方式： OAI收割
来源：过程工程研究所
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