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| Exploration on Flotation Technology of Aluminum Electrolysis Spent Cathode |
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Received:June 27, 2022
Revised:August 14, 2022
Accepted:August 17, 2022
Published Online:February 23, 2023
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| DOI： |
| KeyWord:Electrolytic aluminium; Spent cathode; Flotation; Electrolyte; Graphite |
| Author | Institution |
| Shen Shifu |
BGRIMM Technology Group |
| Cui Shilei |
Binzhou Hongtong Comprehensive Utilization of Resources Co Ltd |
| Wang Jinling |
BGRIMM Technology Group |
| Liu Haiying |
BGRIMM Technology Group |
| Chen Yongjian |
Binzhou Hongtong Comprehensive Utilization of Resources Co Ltd |
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| Abstract: |
| The main components of the spent cathode of aluminum electrolysis are graphite, sodium fluoride, cryolite, etc.. The spent cathode is dangerous wastes, and is difficult to make harmless disposal and resource utilization.SSFlotation separation of graphite and electrolyte is one of the comprehensive utilization methods to spent cathode.SSIn this paper, the main chemical composition and phase composition of the spent cathode, the particle size of the fluoride salt, the main technical parameters of flotation separation of graphite and fluoride salt were studied. The fixed carbon content of graphite powder obtained by closed-circuit test reached 78.56%, and the fluorine content of NaF product reached 42.85%.S |
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