Recovery of Fluorite from a Low-grade Rare Earth Tailing in Sichuan

ZHOU Zheng; OUYANG Anni; XIONG Wenliang; XIA Xiaohong; YANG Wei; XIE Zhiyuan; ZHU Yingjiang

doi:10.3969/j.issn.1000-6532.2024.04.006

2024 No. 4

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Article navigation > Multipurpose Utilization of Mineral Resources > 2024 > 45(4): 43-49

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ZHOU Zheng, OUYANG Anni, XIONG Wenliang, XIA Xiaohong, YANG Wei, XIE Zhiyuan, ZHU Yingjiang. Recovery of Fluorite from a Low-grade Rare Earth Tailing in Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(4): 43-49. doi: 10.3969/j.issn.1000-6532.2024.04.006

Citation:

ZHOU Zheng, OUYANG Anni, XIONG Wenliang, XIA Xiaohong, YANG Wei, XIE Zhiyuan, ZHU Yingjiang. Recovery of Fluorite from a Low-grade Rare Earth Tailing in Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(4): 43-49. doi: 10.3969/j.issn.1000-6532.2024.04.006

Recovery of Fluorite from a Low-grade Rare Earth Tailing in Sichuan

1.
Institute of Multipurpose Utilization of Mineral Resources, CAGS, Sichuan Rare Earth Technology Innovation Center, Technical Innovation Center of Rare Earth Resources, China Geological Survey, Chengdu 610041, Sichuan, China
2.
Sichuan Geological and Mineral Resources Group Co., Ltd., Chengdu 610062, Sichuan, China
3.
Sichuan Hedi Mining Industry Development Co., Ltd., Dechang 615500, Sichuan, China

More Information

Corresponding author: OUYANG Anni, ouyanganni@139.com

Received Date: 12 June 2023

Publish Date: 25 August 2024

Abstract

Abstract

This is an article in the field of mining processing engineering. This article takes Dechang Daluchao rare earth mineral processing tailings as the research object, conducts a beneficiation test study on fluorspar recovery, and determines the beneficiation process flow and reagent of "flotation desulphurization - mixed flotation - flotation separation of fluorite, strontium and barium" for fluorite recovery. In the flotation test, the new MQY collector and DC-2 high-efficiency inhibitor were used to efficiently capture fluorite while achieving precise separation of fluorite and gangue minerals. In the final full-process test, a fluorspar concentrate with a CaF₂ grade of 94.39% and a recovery rate of 51.41% was obtained. The test indicators were relatively ideal. This article tested and verified the feasibility of recovering fluorspar from the Dalunchao rare earth tailings. The final beneficiation process is reasonable and has good test indicators. It can be used as a technical basis for the utilization and recovery of fluorspar resources in the Dalunchao rare earth tailings.
- Mining processing engineering /
- Rare earth tailings /
- Fluorite /
- Mixed flotation /
- Inhibitor

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References

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