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| Study on Pre-desliming-flotation Tests of Spodumene Ore in Australia |
| Received:May 17, 2019 Revised:May 29, 2019 |
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| DOI：doi:10.3969/j.issn.1671-9492.2019.06.013 |
| KeyWord:spodumene; desliming; SDS; flotation |
| Author | Institution |
| YU Fushun |
School of Environment and Resources engineering,Shandong University of Technology |
| JIANG Man |
School of Environment and Resources engineering,Shandong University of Technology |
| WANG Jianlei |
Shandong Huate magnetoelectricity science and techonology Ltd |
| LI Jun |
Shandong Huate magnetoelectricity science and techonology Ltd |
| AN Fengwen |
Shandong Huate magnetoelectricity science and techonology Ltd |
| PAN Dilai |
Xinjiang Fuyun Hengsheng Beryllium Industry Co,Ltd |
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| Abstract: |
| Spodumene ore imported from Australia contains a large amount of slime, which has a negative impact on flotation. Different methods such as hydraulic sedimentation and flotation were used for pre-desliming spodumene ore. The desliming actions of different methods and their effects on subsequent spodumene flotation were investigated. It is found that desliming of spodumene ore by flotation with sodium dodecyl sulfate as reagent achieves the best desliming effect. The desliming amount is large, while lithium grade of the discarded slime is low, hence the lithium loss in the sludge is small; and the grade of rough spodumene concentrate obtained by flotation after desliming can be improved greatly. After pre-desliming, spodumene ore can obtain good beneficiation indexes through a flotation process of one roughing, two cleaning and three scavenging. Closed circuit test shows that the content of Li2O in this imported spodumene ore is 1.42%. After pre-desliming-flotation process, Li2O grade of the concentrate is 5.83%, and 78.54% of Li2O recovery can be achieved in spodumene concentrate. |
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