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| Treatment of Diaspore Bayer Red Mud with Calcification-Carbonation Continuous Process |
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Received:November 29, 2016
Revised:January 10, 2017
Accepted:January 11, 2017
Published Online:March 21, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.04.005 |
| KeyWord:Bayer process; red mud; calcification-carbonization; hydrogarnet |
| Author | Institution |
| xieliqun |
东北大学 多金属共生矿生态化冶金教育部重点实验室 |
| zhang ting an |
东北大学 多金属共生矿生态化冶金教育部重点实验室 |
| lv guo zhi |
东北大学 多金属共生矿生态化冶金教育部重点实验室 |
| zhu xiao feng |
东北大学 多金属共生矿生态化冶金教育部重点实验室 |
| wang yan xiu |
东北大学 多金属共生矿生态化冶金教育部重点实验室 |
| yang jin lin |
东北大学 多金属共生矿生态化冶金教育部重点实验室 |
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| Abstract: |
| A novel “calcification-carbonation” method with low cost and large-scale was developed to recover alumina from Bayer red mud. Calcification-carbonation continuous method was explored to simplify process. The calcification product was carbonated directly without solid-liquid separation. Process of calcification and carbonation was operated in one reactor. Comparative study shows that 34.6% and 35.6% alumina are recovered from diasporic red mud by traditional and continuous method, and Na2O content in processed red mud is 0.23% and 0.17 % respectively. Feasibility to continuously treat Bayer red mud by “calcification-carbonation” method is proved preliminarily. |
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