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| Effect of Dissolution Performance of Bauxite by Different Additives in Bayer Process |
| Received:November 27, 2017 Revised:January 23, 2018 |
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| DOI： |
| KeyWord:lime Bayer process; additive; hydro calcium ferrite; N/S |
| Author | Institution |
| YANG Fan |
昆明理工大学 冶金与能源工程学院 |
| ZHANG Tao |
昆明理工大学 冶金与能源工程学院 |
| XIE Gang |
昆明理工大学 冶金与能源工程学院 共伴生有色金属资源加压湿法冶金技术国家重点实验室 |
| SHI Yusheng |
昆明理工大学 冶金与能源工程学院 |
| SHI Chunyang |
昆明理工大学 冶金与能源工程学院 |
| YU Xiaohua |
昆明理工大学 冶金与能源工程学院 |
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| Abstract: |
| The dissolution of a bauxite deposit in China is studied by different additives (magnesium oxide, dicalcium ferrite, hydro calcium ferrite, hydro calcium ferrite with red mud magnetic iron oxide) instead of lime Bayer process. The results show that hydro calcium ferrite is the best. When C/S = 1.3,the red mud N/S decrease to 0.31, A/S drop to 1.2, the dissolution rate increase to 96.91%. By the means of this study, can optimize the production process and develop new additives to provide a reference for the alumina production enterprises to increase energy-saving and emission-reducing. |
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