Golmud Salt Lake Co., Ltd. invests over 7.04 million tons/year lithium salt project and starts construction
Thread Content
coordinate: Qinghai Province Golmud Charhan Salt Lake Area Project: Investment amount of Salt Lake Co., Ltd.’s 40,000 tons/year basic lithium salt integration project: 7.098 billion yuan latest project: On June 6, Qinghai Salt Lake Industry Co., Ltd. started construction of a 40,000-ton/year basic lithium salt integration project in Qarhan Salt Lake.
The project will be completed in two years with an annual output of 20,000 tons of battery-grade lithium carbonate and 20,000 tons of lithium chloride. The project uses adsorption method to extract lithium chloride from old brine, and is divided into five process units: salt field and storage tank, adsorption lithium extraction, membrane refining and concentration, reaction lithium precipitation and lithium chloride. The project first uses an adsorbent that is selective for lithium to adsorb lithium ions in the lithium-rich liquid containing old brine or concentrated salt field sunlight, and then elutes the lithium ions to obtain a qualified adsorption liquid. The adsorption tail liquid is returned to the potash fertilizer salt field system. ； The adsorption qualified liquid is refined through membrane separation coupling technology + electrodialysis concentration technology + continuous ion exchange technology + MVR evaporation concentration technology to obtain refined high lithium qualified liquid ； The high-lithium qualified liquid is divided into two channels. One channel generates battery-grade lithium carbonate products through lithium precipitation reaction, and the other channel generates lithium chloride products through evaporation and desalination.