Abstract
THE recovery of metalliferous minerals from crude ores in the condition of cleanliness necessary for metallurgical operations is accomplished by the removal of the non-metalliferous material, leaving the valuable minerals in a concentrated condition. In this removal advantage is chiefly taken of the higher specific gravity of the metalliferous material, which permits its separation either when falling vertically in still water or when travelling horizontally in moving water. This is known as water or gravity-concentration; it depends upon the differential movement of heavy and light minerals in water.
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The Flotation Method of Ore Concentration . Nature 99, 66–67 (1917). https://doi.org/10.1038/099066a0
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DOI: https://doi.org/10.1038/099066a0