Heavy Rare Earths Limited (ASX:HRE) has reported results from its ongoing metallurgical investigation of rare earth mineralization at its 100% owned Cowalinya project in the Norseman-Esperance region of Western Australia.
HRE executive director, Richard Brescianini, said, “We are making excellent progress on our metallurgical programme to establish an optimal process route for the rare earth resources at Cowalinya. Our earlier reported sizing work gave us confidence that simple, low-cost screening can deliver a two-fold increase in rare earth concentration for leaching.”
Highlights include that sizing work indicates simple, low-cost screening capable of delivering two-fold increase in rare earths grade. Diagnostic leaching test work produces very high extractions of magnet rare earths (as high as 91.3%).
Additionally, high extractions achieved with low acid consumption (as low as 3.8kg/t). A programme is underway to develop downstream flowsheet to a mixed rare earth carbonate (MREC) product and generate samples for customer assessment.
Overall, HRE expects new mineral resources and a maiden exploration target for Cowalinya project in Q3 2023
More recent diagnostic leaching of this upgraded material has yielded several highly promising magnet rare earth extractions with low acid consumption, both of which are central to technical and commercial viability. Whilst we acknowledge some variability in these results and the need to further optimize leach performance, our forward programme now has its sights firmly set on producing samples of a mixed rare earth Carbonate, the first possible entry point by HRE into the rare earth supply chain.” Added Richard.
To find out more, please visit www.hreltd.com.au
