Expansion Experiment of Multi-stage Precision Control Process for Lithium Enrichment in Qarhan Salt Lake Brine

LYU Xuecheng; SHI Zhonglu; TANG Yongquan; LI Zhiwei

doi:10.3969/j.issn.1000-6532.2024.04.007

2024 No. 4

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Article navigation > Multipurpose Utilization of Mineral Resources > 2024 > 45(4): 50-56

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LYU Xuecheng, SHI Zhonglu, TANG Yongquan, LI Zhiwei. Expansion Experiment of Multi-stage Precision Control Process for Lithium Enrichment in Qarhan Salt Lake Brine[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(4): 50-56. doi: 10.3969/j.issn.1000-6532.2024.04.007

Citation:

LYU Xuecheng, SHI Zhonglu, TANG Yongquan, LI Zhiwei. Expansion Experiment of Multi-stage Precision Control Process for Lithium Enrichment in Qarhan Salt Lake Brine[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(4): 50-56. doi: 10.3969/j.issn.1000-6532.2024.04.007

Expansion Experiment of Multi-stage Precision Control Process for Lithium Enrichment in Qarhan Salt Lake Brine

1.
Qinghai Salt Lake Magnesium Industry Co., Ltd., Golmud 816000, Qinghai, China
2.
Qinghai Salt Lake Industry Group Co., Ltd., Golmud 816000, Qinghai, China
3.
Qinghai Salt Lake Yuantong Potash Fertilizer Co., Ltd., Golmud 816000, Qinghai, China
4.
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lake, Chinese Academy of Sciences, Xining 810008, Qinghai, China
5.
Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining 810008, Qinghai, China

More Information

Corresponding author: LI Zhiwei, 13997270763@163.com

Received Date: 27 October 2023

Publish Date: 25 August 2024

Abstract

Abstract

This is an article in the field of mining engineering. In view of the concentration and enrichment of lithium ions in old halide in Qerhan Salt Lake, the expansion experiment of the multi-stage precision control process of old halide enrichment was completed by means of evaporation crystallization and step separation. The enrichment law of lithium and boron during evaporation was studied. The concentration of lithium ions reached more than 1 g/L, and high quality hydrochloromagnite was obtained. The material balance of the evaporation process of the salt pan was carried out, and the actual halogen yield and lithium yield of each phase of salt extraction were obtained, as well as the production capacity of the sun salt pan and the area distribution ratio of each level of the salt pan, which can provide reliable data support for the comprehensive development and utilization of potassium old brine extraction in Qerhan Salt Lake in the future.
- Mining engineering /
- Salt lake brine /
- Lithium /
- Bischofite /
- Existing state /
- Salt field process

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References

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