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| Progress in Resource Utilization of Aluminum Electrolytic Waste Cell Lining* |
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Received:April 25, 2022
Revised:May 10, 2022
Accepted:May 12, 2022
Published Online:July 04, 2022
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| DOI： |
| KeyWord:Spent pot-lining; Solid waste,;Separation and recovery; Harmless treatment,;Graphitization |
| Author | Institution |
| lixuelian |
School of Minerals Processing and Bioengineering, Central South University |
| wangli |
School of Minerals Processing and Bioengineering, Central South University |
| zenghua |
School of Minerals Processing and Bioengineering, Central South University |
| xurui |
School of Minerals Processing and Bioengineering, Central South University |
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| Abstract: |
| Spent pot-lining from aluminum smelters is a kind of dangerous solid waste produced by aluminum electrolytic industry, containing soluble fluoride and cyanide, which will cause harm to the surrounding environment. The reasons for the formation of waste aluminum electrolytic tank lining, waste comprehensive recycling technology of cathode carbon block and refractory waste harmless handling technology were briefly introduced, the existence form and distribution position of harmful substances in spent pot-lining were summarized, and the penetration behavior of sodium in electrolytic aluminum, the mechanism and influencing factors of graphitization of cathode carbon block were also analyzed. |
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