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Defense Metals to Initiate Flotation Pilot Plant Processing of 30 Tonne Bulk Sample Based on Positive Bench Scale Metallurgical Testwork
Defense Metals to Initiate Flotation Pilot Plant Processing of 30 Tonne Bulk Sample Based ...
About this update from Defense Metals Corp.
[{"type":"text","content":"\n\n\n\nDefense Metals to Initiate Flotation Pilot Plant Processing of 30 Tonne Bulk Sample Based on Positive Bench Scale Metallurgical Testwork\n\n/* Style Definitions */\nspan.prnews_span\n{\nfont-size:8pt;\nfont-family:\"Arial\";\ncolor:black;\n}\na.prnews_a\n{\ncolor:blue;\n}\nli.prnews_li\n{\nfont-size:8pt;\nfont-family:\"Arial\";\ncolor:black;\n}\np.prnews_p\n{\nfont-size:0.62em;\nfont-family:\"Arial\";\ncolor:black;\nmargin:0in;\n}\n\n\n\n\n\n\n\nCanada NewsWire\nVANCOUVER, Feb. 24, 2020\n\n\n\nVANCOUVER, Feb. 24, 2020 /CNW/ - Defense Metals Corp. (\"Defense Metals\") (TSX-V:DEFN / OTCQB:DFMTF / FSE:35D) is pleased to announce that it has informed SGS Canada Inc. (\"SGS\") of its intention to move forward with pilot plant processing of its 30 tonne Wicheeda Rare Earth Element Property (\"Wicheeda\") bulk sample.\n\n \n \n\n \nBench-scale flotation (Phase 1a) and hydrometallurgical (Phase 1b) studies led to the successful development of a flowsheet capable of producing a high grade 48.7% total rare earth oxide (TREO) flotation concentrate at 85.7% TREO recovery. Subsequent hydrometallurgical treatment yielded a high grade 67.5% total rare earth element (TREE) mixed REE hydroxide precipitate via ~90% TREE leach extraction from the flotation concentrate, and overall recoveries (into a leach liquor) of 76-78% TREE from the original bulk sample (See Defense Metals News Releases dated October 23, 2019; and February 18, 2020). \nThe success of this yearlong metallurgical flowsheet optimization process, which showed Wicheeda REE mineralization is amenable to relatively simple treatment via well-established flotation, and hydrochloric acid leach / caustic crack REE extraction methods, gives Defense Metals the confidence to move forward with initiation of larger-scale pilot plant processing of the 30 tonne bulk sample. \nDefense Metals has reviewed and executed the Phase 2 flotation pilot plant proposal recommended by SGS. The objectives of pilot plant testing are to \nConfirm metallurgy in a pilot plant environment, Generate data to support engineering, and Produce a large amount of concentrate for downstream hydrometallurgy testing.The pilot plant will treat up to 30 tonnes of material in a continuous manner over 180 hours of operation, at an anticipated feed-rate of approximately 150 kg per hour based on the ...