|
| Study on Purification Technology of Spent Si3N4 Combined SiC Refractory from Electronic Aluminium Processes |
|
Received:March 07, 2020
Revised:April 02, 2020
Accepted:October 14, 2020
Published Online:January 29, 2021
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:Electrolytic aluminum; Sii3N4 bounded sic; refractory; purification |
| Author | Institution |
| liupeng |
滨州市宏通资源综合利用有限公司 |
| shenshifu |
BGRIMM group |
|
| Hits: 1890 |
| Download times: 818 |
| Abstract: |
| In this paper, the main chemical composition, mineral composition, hardness and distribution characteristics of NaF in spent SiC-Si3N4 refractory were studied, the acid leaching conditions which affecting this refractory purity were also studied. This study showed that 96.45% purity of SiC-Si3N4 refractory could be obtained by the combined water-acid leaching process, and the leaching rate of Na, F reached 91.89%, 97.80% respectively, the main impurity phases were SiO2, mullite, SiCN, AlN and ect.. |
| Close |
|
|
|