Solubility of AlCl3路6H2O in the Fe(II) + Mg + Ca + K + Cl + H2O system and its salting-out crystallization with FeCl2
文献类型：会议论文
| 作者 | Gao, Wencheng1; Li, Zhibao1; Asselin, Edouard2 |
| 出版日期 | 2013-10-02 |
| 关键词 | Aluminum chloride - Alumina - Aluminum oxide - Phase diagrams - Fly ash - Iron compounds - Magnesium compounds - Phase equilibria - Solubility - Recovery |
| 卷号 | 52 |
| 期号 | 39 |
| DOI | 10.1021/ie401850a |
| 页码 | 14282-14290 |
| 英文摘要 | Phase equilibria determination for the Al + Fe(II) + Mg + Ca + K + Cl + H2O system showed that FeCl2 is effective to promote the salting-out crystallization of AlCl3路6H2O. A novel process to recover AlCl3路6H2O from fly ash by salting-out crystallization with FeCl2 is proposed and proven feasible. This novel process includes leaching of fly ash by hydrochloric acid, reduction of Fe3+ to Fe2+, salting-out crystallization of AlCl3路6H2O with FeCl2, and filtering followed by washing. The solubility of AlCl3路6H2O in the Fe(II) + Mg + Ca + K + Cl + H2O system was determined over the entire practical concentration range and from 283.2 to 363.2 K using a dynamic method. The experimental solubilities were regressed to obtain new mixed solvent electrolyte (MSE) model parameters. These new parameters were capable of accurately representing the experimental data of the system from 283.2 to 343.2 K. The phase diagram of the ternary AlCl3-FeCl2-H 2O system at 298.2 and 333.2 K was successfully constructed with the aid of the new MSE model parameters. Based on the phase diagram, a promising route to recover AlCl3路6H2O by salting-out crystallization with FeCl2 was generated and verified to be feasible in laboratory experiments. All the results generated from this study will provide fundamental data for industrial applications aiming at the recovery of alumina from fly ash resources. 漏 2013 American Chemical Society. |
| 资助机构 | American Chemical Society |
| 学科主题 | Electrolytes |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59405]  |
| 作者单位 | 1.Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 2.Department of Materials Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada |
| 推荐引用方式 GB/T 7714 | Gao, Wencheng,Li, Zhibao,Asselin, Edouard. Solubility of AlCl3路6H2O in the Fe(II) + Mg + Ca + K + Cl + H2O system and its salting-out crystallization with FeCl2[C]. 见:. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。