Australian Rare Earths Simplifies Koppamurra Process Flowsheet to Produce High-Purity MREO

Australian Rare Earths (ASX: AR3) has simplified and improved the processing flowsheet for its Koppamurra ionic clay project in South Australia, resulting in the production of a high-purity mixed rare earth oxide (MREO).

Recent metallurgical test work demonstrated a viable process to produce the MREO using conventional low-risk calcination and oxalic acid precipitation.

This introduces a downstream purification pathway considerably more straightforward than mixed rare earth carbonate flowsheets used by similar projects.

China is the world’s largest producer and exporter of oxalic acid — known for its use as the active ingredient in many commercial rust and stain removers — with alternate sources of supply coming from India, Japan, South Korea, and Europe.

Read the full article: https://smallcaps.com.au/article/australian-rare-earths-simplifies-koppamurra-process-flowsheet-to-produce-high-purity-mreo