E25’s patent applications for low carbon HPMSM process

Element 25 Limited (ASX: E25) has lodged two key international patent applications for its battery grade high-purity manganese sulphate monohydrate (HPMSM) production process.

The patent applications have been lodged under the Patent Co-operation Treaty (PCT), claiming priority from Australian Patent Application(s) 2022903576 & 2022903573 and aims to protect two key manganese processing steps in Element 25’s flowsheet.

The flowsheet was developed to convert the company’s Butcherbird manganese concentrate into HPMSM, a critical raw material for the manufacture of lithium-ion batteries.

In a statement released by Element 25 today, the company says these two key processing steps “are critical to delivering the advantages of [the] HPMSM process compared to existing processes currently in production, namely: reduced energy consumption compared to roast reduction processing; and reduced reagent consumption compared to traditional neutralisation”.

“Separation of waste residues in forms that can be used in existing industrial processes, thereby minimising or eliminating waste disposal requirements,” the statement continued.

“These innovations mean that the E25 process can claim industry-leading low carbon intensity and compete on cost in target markets when compared with existing producers.”

Element 25 expects its patent applications to be processed in 2024. The company is also developing a processing facility in Louisiana to produce up to 135,000tpa of HPMSM for the US electric vehicle (EV) supply chains.