|
| Research Progress of Aluminum Resource Recovery Technology in Coal Fly Ash |
|
Received:November 20, 2023
Revised:November 29, 2023
Accepted:December 11, 2023
Published Online:April 16, 2024
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2024.05.008 |
| KeyWord:coal fly ash; aluminum; acid method; alkali method; circular economy |
| Author | Institution |
| LUO Zhenyong |
贵阳铝镁设计研究院有限公司 |
| CHEN Muyang |
内蒙古工业大学 |
| GONG Yanbing |
内蒙古工业大学 |
| Byambagar Batdelger |
School of Applied Sciences,Mongolian University of Science and Technology |
| Tungalagtamir Bold |
School of Applied Sciences,Mongolian University of Science and Technology |
|
| Hits: 1402 |
| Download times: 1015 |
| Abstract: |
| Coal fly ash (CFA) is a bulk industrial solid waste generated from coal combustion in thermal power plants, which is rich in aluminum resources. Based on the dual drive of ecological and environmental benefits and the scarcity of bauxite resources in China, it is of great significance to recover aluminum resources from CFA. The methods of recovering aluminum resources from CFA by acid method, alkali method and other methods were mainly reviewed, and the main technical indexes such as alumina extraction rate, reaction temperature and acid-base concentration were compared. The advantages and disadvantages of the existing technologies are summarized and discussed. It is pointed out that the construction of upstream and downstream industrial chain is an urgent issue for the industrialization of aluminum resources recovery from CFA. It is suggested that closely combining with the development of local regional circular economy, the development of green, mild and new technology of comprehensive utilization of by-products is the only way to develop the comprehensive utilization industry of fly ash in the future. |
| Close |