Brazilian Critical Minerals (ASX:BCM) has achieved magnetic rare earth oxide (MREO) recoveries of up to 83% in phase 2 met testwork, the company reported on Tuesday.
The company was able to use ammonium sulphate at ambient temperatures “over low leach times of only 30 minutes duration.”
BCM has been working on perfecting the downstream extraction of REEs at its Brazilian acreage, which it hopes to do within more ESG-friendly parameters.
In recent history, the stock was looking at using microbes to achieve the same results one could get from using acids. Success there was piecemeal.
The company noted on Tuesday that some 107sq.km of its Ema project remains undrilled and untested – and also that the mineralisation on-site is fit to be processed at facilities “common in China.”
Sydney’s nuclear-material-handling ANSTO facility also continues to help BCM optimise its downstream aims.
BCM is targeting a maiden JORC for publication later this month.
The stock last traded at 2.1cps.