European Metals says tests support Cinovec’s ability to initially produce battery-grade lithium carb

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European Metals Holdings Ltd (LON:EMH, ASX:EMH, NASDAQ:ERPNF) said results from locked-cycle tests (LCT) further supported the Cinovec project’s ability to initially produce battery-grade lithium carbonate.

The locked-cycle tests were a metallurgical processing assessment conducted on ore concentrate extracted from the company’s flagship Cinovec lithium-tin project in the Czech Republic. The LCTs tested zinnwaldite concentrate from the southern part of Cinovec, representative of the first five years of mining.

“In a significant vote of confidence for our Pre-Feasibility Study, the proposed process methodology has been confirmed by excellent locked-cycle test results which also include new processes involving recycle streams,” said European Metals executive chairman Keith Coughlan.

“The robustness of the process was further confirmed by the stabilisation of the process streams, enabling the work to stop after only four of the six test cycles were completed.” 

Battery grade lithium carbonate was produced in every LCT with lithium recoveries of up to 92.0% achieved in the four LCTs performed.

“The recovery of up to 92% of the lithium in the zinnwaldite concentrate at this early stage of DFS testwork is very promising for increased recoveries during the planned process optimisation work.”

Further optimisation work in hydrometallurgy processing steps is expected to improve lithium recoveries from concentrate to greater than 92.0%.

“An improved fluoride removal step which is cheaper and cleaner represents only the beginning of further optimisation work which we expect will result in greater lithium recoveries and even stronger economics for the Cinovec project.

European Metals has a 49% stake in Cinovec. The project hosts the largest lithium resource in Europe and one of the world’s largest undeveloped tin resources.

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