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Column Flotation of a Montana Talc Ore.
SME Preprint 90-110 1990 :7 pages
Tests were conducted to assess the potential of column flotation for beneficiation of a talc ore from Montana. This ore contained approximately 80 pct talc, with the gangue comprised mainly of chlorite, silica, and dolomite. A tributylamine, mibc, and sodium silicate reagent suite proved effective for talc flotation. Rougher- cleaner column flotation in a continuous open circuit produced a final talc concentrate that contained 0.90 pct al2o3, 0.17 pct cao, and 1.28 pct fe2o3. These analyses represented impurity rejections of 77, 85, and 65 pct respectively. Weight recovery for this open circuit was 52 pct; however, weight recovery was estimated to be 75 pct with cleaner tailings recycle. Results from this investigation show that column flotation is a viable means for beneficiating talc.
SME Preprint 90-110, 1990, 7 PP.
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