Study on Technology Optimization of Heavy Medium Separation - Flotation for a Spodumene Ore

CONG Longfei; LUO Jiajing; GU Yuan; ZHOU Zhangchun; QU Xianmin

doi:10.13779/j.cnki.issn1001-0076.2021.05.004

2021 Vol. 41, No. 5

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CONG Longfei, LUO Jiajing, GU Yuan, ZHOU Zhangchun, QU Xianmin. Study on Technology Optimization of Heavy Medium Separation - Flotation for a Spodumene Ore[J]. Conservation and Utilization of Mineral Resources, 2021, 41(5): 25-30. doi: 10.13779/j.cnki.issn1001-0076.2021.05.004

Citation:

CONG Longfei, LUO Jiajing, GU Yuan, ZHOU Zhangchun, QU Xianmin. Study on Technology Optimization of Heavy Medium Separation - Flotation for a Spodumene Ore[J]. Conservation and Utilization of Mineral Resources, 2021, 41(5): 25-30. doi: 10.13779/j.cnki.issn1001-0076.2021.05.004

Study on Technology Optimization of Heavy Medium Separation - Flotation for a Spodumene Ore

1.
Weihai Shangpin mechanical equipment technology Co. Ltd, Weihai 264200, Shandong, China
2.
School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
3.
Shandong Special Equipment Inspection Institute Weihai Branch, Weihai 264200, Shandong, China

Received Date: 02 August 2021

Publish Date: 25 October 2021

Abstract

Abstract

In order to improve the 1 200 t/d heavy medium separation process of a spodumene concentrator in Shandong province, based on the original flotation and heavy medium separation data and combined with the flotation test of broken ore, the combined heavy medium flotation separation process was used to carry out the beneficiation experiment. The results show that heavy medium separation is feasible for spodumene ore. The main valuable ore is spodumene and tantalum niobite, gangue is quartz, feldspar, mica, etc. The new NTMC500-350/400-T cyclone separation effect is obviously improved. When the separation density is 2.90 g/cm³ and Li₂O grade is 4.30%, the recovery rate of type X Li₂O is about 7.00% higher than that of type Y. After the improved heavy medium process, chemical grade lithium concentrate with Li₂O grade of 5.20% was obtained when the separation density of one stage was 2.80 g/cm³ and that of the second stage was 3.15 g/cm³. The combined separation process will input the heavy medium ore into the flotation process, respectively, to maximize the utilization of resources, and obtain the separation index of Li₂O grade of 5.20%, Li₂O recovery of 83.43%, the fine mineral rate of 35.46%, to solve the problems of heavy medium separation medium ore where about, the flotation process into grinding, high operation cost, high raw ore loss rate.
- spodumene /
- heavy medium separation /
- flotation /
- spiral chute /
- joint separation

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