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Medallion Resources Updates on Success of Rare Earth Element Separation Technology and Status of Techno-Economic and Life Cycle Assessments
VANCOUVER, British Columbia, June 02, 2021 (GLOBE NEWSWIRE) -- Medallion Resources Ltd. (TSX-V: MDL; OTCQB: MLLOF; Frankfurt: MRDN) – “Medallion” or the “Compan
About this update from Gamma Resources Ltd.
[{"type":"text","content":" VANCOUVER, British Columbia, June 02, 2021 (GLOBE NEWSWIRE) -- Medallion Resources Ltd. (TSX-V: MDL; OTCQB: MLLOF; Frankfurt: MRDN) – “Medallion” or the “Company”), is pleased to announce the successful separation and purification of the magnetic rare-earth elements (REE) neodymium (Nd) and praseodymium (Pr), from US-sourced mineral sand monazite. This is a significant milestone for the Company and highlights the value-add opportunity created by the recent exclusive licensing of the Ligand Assisted Displacement (LAD) Chromatography method and underlying patents from Purdue University (see press release dated 18th February 2021). Medallion Separates Neodymium and Praseodymium using LAD Chromatography Utilizing the Medallion Monazite Process, the Company extracted REEs from monazite sourced from an operational mineral sand mine in the eastern USA, into a pregnant leach solution (PLS); This PLS was passed into the LAD Chromatography process and the target REEs Nd and Pr were extracted directly from solution without the need for additional conditioning or purification of the PLS; The high efficiency of the LAD method is in part enabled by the ability to directly extract the highest value and most critical REEs from solution at high purity. Progressive group separation of all REEs (as required by the incumbent solvent extraction method) is not needed within the LAD Chromatography system; Published test work by Purdue University demonstrates >99% recovery of REE from solution by the LAD method; The LAD method can equally be applied to the direct extraction of heavy REEs dysprosium (Dy) and terbium (Tb) from solution, which will form the basis of additional test work; LAD Chromatography can be considered an environmentally friendly process, as it is highly efficient and does not depend upon solvents from the petrochemical industry. The technology was highlighted in a 2020 article in The Journal of Green Chemistry “Two-zone ligand-assisted displacement chromatography for producing high-purity praseodymium, neodymium, and dysprosium with high yield and high productivity from crude mixtures derived from waste magnets”; Monazite is an REE rich (up to 60% REE) mineral that can be accessed in large volume as a by-product from heavy mineral sand mines in the US, Australia, Africa, and elsewhere. It is consistently enriched in the high-dem...