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| Exploration on Deep Dehydration of Red Mud |
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Received:February 26, 2024
Revised:March 05, 2024
Accepted:March 07, 2024
Published Online:August 08, 2024
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| DOI：doi：10.3969/j.issn.1007-7545.2024.09.022 |
| KeyWord:red mud; deep dehydration; moisture content; filter aid |
| Author | Institution |
| ZHANG Yanli |
中铝郑州有色金属研究院有限公司 |
| YAN Kun |
国家铝冶炼工程技术研究中心;中铝郑州有色金属研究院有限公司 |
| HE Xinzhong |
国家铝冶炼工程技术研究中心;中铝郑州有色金属研究院有限公司 |
| LEI Shuxi |
国家铝冶炼工程技术研究中心;中铝郑州有色金属研究院有限公司 |
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| Abstract: |
| Applying the red mud from domestic and foreign mines of a enterprise as the research object, by studying the effects of 7 physical filter aids and 5 chemical filter aids on water content in the red mud filter cake, solid waste XS and surfactant PL50 were selected as physical and chemical filter aids for dehydration and conditioning process of red mud, and the optimal addition amount was determined. Under the combined conditioning of solid waste XS and surfactant PL50, the domestic and foreign ore red mud were pressed for 20 min under the secondary pressing pressure of 1.32 MPa at room temperature and the water content of the filter cake dropped by 3.18% and 6.11% respectively. |
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