American Rare Earths Announces Strong Initial Beneficiation Optimization Results and Updated Preliminary Mineral Processing Flowsheet

Core Insights - American Rare Earths has released a preliminary updated mineral processing flowsheet for the Halleck Creek Rare Earths Project, marking a significant milestone towards establishing the next producing rare earths mine in the United States [1][4][28] Mineral Processing Flowsheet - The updated flowsheet incorporates recent hydrometallurgical test results, indicating progress in optimizing the mineral processing methods [4][12] - The ongoing optimization work is expected to enhance the recovery of rare earth elements (REEs) from the ore, with preliminary results showing promising outcomes [3][12] Beneficiation Optimization - Preliminary Reflux Classifier Concentrator (RCC) tests suggest a more efficient alternative to spirals as the primary beneficiation method, achieving a mass yield of 14.0% and a TREO recovery of 78.4% [5][15] - The RCC method demonstrated a 44% decrease in mass yield compared to spirals, with a significantly higher enrichment factor of 5.66 [17] Comminution Tests - Ongoing comminution optimization tests aim to reduce fines generated during ore processing, which could positively impact both beneficiation processing and overall REE recoveries [3][6][12] - The company is testing multiple conventional milling methods to optimize the front-end process [6][11] Future Steps - A bulk sample of Halleck Creek ore will be processed through the entire preliminary updated flowsheet, excluding the separation and finishing step, to complete the necessary datasets for the forthcoming Pre-Feasibility Study (PFS) [10][12] - The results from the ongoing optimization tests are expected to further validate the technical and economic viability of the Halleck Creek project [12][29]