Study on Comprehensive Recovery of Lithium Mica and Feldspar from Low Grade Lepidolite Ore in Yifeng of Jiangxi

YANG Zhizhao; YANG Siqi; XIE Fanxin; HU Xin; ZHANG Yongbing; ZHOU Hepeng; LUO Xianping

doi:10.13779/j.cnki.issn1001-0076.2022.03.004

2022 Vol. 42, No. 3

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Article navigation > Conservation and Utilization of Mineral Resources > 2022 > 42(3): 24-29

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YANG Zhizhao, YANG Siqi, XIE Fanxin, HU Xin, ZHANG Yongbing, ZHOU Hepeng, LUO Xianping. Study on Comprehensive Recovery of Lithium Mica and Feldspar from Low Grade Lepidolite Ore in Yifeng of Jiangxi[J]. Conservation and Utilization of Mineral Resources, 2022, 42(3): 24-29. doi: 10.13779/j.cnki.issn1001-0076.2022.03.004

Citation:

YANG Zhizhao, YANG Siqi, XIE Fanxin, HU Xin, ZHANG Yongbing, ZHOU Hepeng, LUO Xianping. Study on Comprehensive Recovery of Lithium Mica and Feldspar from Low Grade Lepidolite Ore in Yifeng of Jiangxi[J]. Conservation and Utilization of Mineral Resources, 2022, 42(3): 24-29. doi: 10.13779/j.cnki.issn1001-0076.2022.03.004

Study on Comprehensive Recovery of Lithium Mica and Feldspar from Low Grade Lepidolite Ore in Yifeng of Jiangxi

1.
Jiangxi Provincial Key Laboratory of Environmental Pollution Control of Mining and Metallurgy, Ganzhou 341000, Jiangxi, China
2.
Engineering Research Center for Efficient Development and Application of Tungsten Resources, Ministry of Education, Ganzhou 341000, Jiangxi, China

More Information

Corresponding author: ZHOU Hepeng, zhp0919@163.com

Received Date: 16 May 2022

Publish Date: 25 June 2022

Abstract

Abstract

The lepidolite ore in Yifeng area of Jiangxi Province is seriously weathered and the occurrence form of minerals is complex. The theoretical grade of Li₂O in lepidolite is low. In order to realize the efficient recovery of lithium and feldspar from the lepidolite ore, the detail beneficiation test research was carried out. The results showed that the process of desliming-flotation-magnetic separation was adopted. First, the raw ore was deslimed to reduce the cover of fine gangue minerals on the surface of lithium mica. Then, the flotation of lithium mica with highly selective collector ZY could effectively separate lepidolite from gangue minerals. The lepidolite concentrate with Li₂O content of 1.73% and recovery rate of 75.87% was obtained. After iron removal from flotation tailings by high gradient magnetic separation with magnetic field intensity of 1.5 T, the feldspar concentrate with operation yield of 94.31%, Na₂O 5.78%, K₂O 3.08%, Fe₂O₃ 0.07% and whiteness of 67.21% could be obtained and used as ceramic material. The process had achieved good beneficiation indexes for the treatment of lepidolite ore, and realized the comprehensive recovery of lepidolite and feldspar.
- lepidolite /
- feldspar /
- collector /
- comprehensive recovery /
- flotation /
- magnetic separation

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References

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