United Lithium Corp. announced the results from flotation testing of spodumene-rich pegmatite sample materials using an innovative and proprietary flotation technology. This test program was conducted on lithium (Li) bearing pegmatite samples collected from a Canadian source containing 1.4—2.1% Li2O to develop a proprietary process flowsheet that can then be applied to various other spodumene rich ore deposits. The scope of the program included sample preparation and characterization as well as flotation. The greatest hard rock concentrations of lithium-containing minerals occur in granitic pegmatites. The most important of these minerals are spodumene (Li2O.Al2O3.4SiO2), petalite (Li2O.Al2O3.8SiO2) and lepidolite (LiF·KF·Al2O3·3SiO2). Among these minerals, spodumene is considered the most important commercial lithium mineral due to its higher Li content and better processing characteristics. Process Research Ortech (PRO) was contracted by United Lithium Corp. to develop a sustainable process flowsheet for the recovery of lithium from a hard rock deposits. The primary lithium mineral to be concentrated is the alumina-silicate mineral, spodumene. For Phase 1 of the program (making a flotation concentrate) materials from a lithium-rich pegmatite was sourced in Canada for testing. The QEMSCAN analysis was carried out at Activation Laboratories Ltd. in Ancaster, Ontatrio, Canada on two size fractions of the feed: -200M (21-0165) and +200M (21-0164). The results of the QEMSCAN came after most of the flotation runs were completed. As shown in Table 2, spodumene is the predominant Li bearing mineral present in the feed, and the coarser fraction is enriched in this mineral. The success of this program using this “greener” flotation technology encourages United Lithium to continue forward by testing lithium-rich pegmatite material from its 100% owned Barbara Lake Lithium Project in Ontario, Canada, and its 100% owned Bergby Lithium project in Sweden and continue with development of a sustainable flowsheet for lithium recovery. United Lithium also plans to test Li-rich materials that will be collected as part of due diligence programs for projects that may be acquired by the Company in the future. The PRO test work flowsheet was conceived and supervised by Dr. Abdul Halim, VP Technology of Process Research Ortech. He has over 15 years of experience in developing and optimizing innovative and sustainable technologies for critical metals including lithium, cobalt, nickel & other base metals, PGMs, gold, germanium and rare earths (REEs) from mined natural resources and recycled materials through bench, pilot, and demonstration plant operations. He has authored more than 50 scientific and technical papers, holds 5 US patents, and has authored a number of book chapters in these areas. He worked at FLSmidth, Salt Lake City, USA, and SGS Lakefield, Canada prior to joining Process Research Ortech as a VP Technology.