Mechanisms of mechanochemical activation during comprehensive utilization of high-alumina coal fly ash
文献类型：期刊论文
| 作者 | Yang, Chennian; Zhang, Jianbo2; Li, Shaopeng; Li, Huiquan2; Hou, Xinjuan; Zhu, Ganyu |
| 刊名 | WASTE MANAGEMENT
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 116页码:190-195 |
| 关键词 | High-alumina coal fly ash Desilication Mechanochemical activation Aluminum-silicon mass ratio Mechanism |
| ISSN号 | 0956-053X |
| DOI | 10.1016/j.wasman.2020.08.003 |
| 英文摘要 | High-alumina coal fly ash (HAFA) is an important aluminum and silicon resource. In terms of its comprehensive utilization, how to efficiently separate aluminum and silicon must be resolved. In this work, a mechanochemical activation method in the desilication process is adopted and investigated. Desilication ratio, efficient desilicated ratio, microscopic appearance, and coordination structure change in aluminum-silicon atoms are investigated during mechanochemical activation process. Results indicate that the Al-O-Si coordination structure in HAFA can be transformed from Q(4) (3A1) and Q(4) (2A1) to reactive Q(2) (1A1) structure, and the radio of Q(2) (1A1) with high activity increased from 6.93% to 14.47%, which can improve HAFA reaction activity obviously. During the desilication process, the aluminum-silicon mass ratio (A/S) can be elevated from 1.23 to 2.56 after the process optimization, which provides a high-quality raw material for further high-valued utilization of HAFA. (C) 2020 Elsevier Ltd. All rights reserved. |
| WOS关键词 | SI-29 ; EXTRACTION ; RECOVERY ; AL2O3 ; AL-27 ; FOCUS |
| 资助项目 | National Key Research and Development Program of China[2019YFC1904302] ; National Nature Science Foundation of China[51804293] ; National Nature Science Foundation of China[U1810205] ; National Nature Science Foundation of China[51704272] ; State Key Laboratory of Solid Waste Reuse for Building Materials[SWR-2019-005] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000571231800020 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key Research and Development Program of China ; National Nature Science Foundation of China ; State Key Laboratory of Solid Waste Reuse for Building Materials |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/42183]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhang, Jianbo; Li, Huiquan |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100090, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Chennian,Zhang, Jianbo,Li, Shaopeng,et al. Mechanisms of mechanochemical activation during comprehensive utilization of high-alumina coal fly ash[J]. WASTE MANAGEMENT,2020,116:190-195. |
| APA | Yang, Chennian,Zhang, Jianbo,Li, Shaopeng,Li, Huiquan,Hou, Xinjuan,&Zhu, Ganyu.(2020).Mechanisms of mechanochemical activation during comprehensive utilization of high-alumina coal fly ash.WASTE MANAGEMENT,116,190-195. |
| MLA | Yang, Chennian,et al."Mechanisms of mechanochemical activation during comprehensive utilization of high-alumina coal fly ash".WASTE MANAGEMENT 116(2020):190-195. |
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。