American Rare Earths starts small-scale processing of rare earths ore
ASX-listed American Rare Earths has started with small-scale continuous processing of ore from the Halleck Creek operation at US metallurgy and metallisation company Novex's research facility, in Washington, to produce neodymium and praseodymium oxide followed by metal.
Notably, the pilot plant is separate from a larger pilot plant planned at the Saskatchewan Research Council in 2027.
The testwork is being carried out by American Rare Earths' wholly-owned subsidiary Wyoming Rare, as part of the Halleck Creek process verification and selected rare earth metal production demonstration programme. The Halleck Creek project is based in Wyoming, with Cowboy State Mine being the first development phase of the broader Halleck Creek project.
The programme is intended to enhance the metallurgical understanding of ore from Halleck Creek, while producing high-purity rare earth oxide and metal material. American Rare Earths says magnet manufacturers cannot use oxide directly, rather they need metal and alloy. The step from separated oxide to metal, however, remains one of the narrowest points in the supply chain globally outside of China.
American Rare Earths aims to connect the Halleck Creek resource with the midstream step of rare earths processing in the US.
For now, Wyoming Rare has a memorandum of understanding in place with Novex to take Halleck Creek material through a single connected circuit - from concentrate through leaching, purification and separation to neodymium and praseodymium oxide and metal.
As results from the programme become available, American Rare Earths will consider a larger campaign with Novex targeting a 200 g neodymium and praseodymium metal bar, which would require additional concentrate, and separation and metallisation work for samarium, dysprosium and yttrium.
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