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bio flotation of iron ores

Jan 02, 2012· The history of iron ore flotation started with direct flotation of iron oxides using anionic collectors such aspetroleum sulphonate,fatty acids and hydroxamates. In 1950s, the direct flotation route was integrated in plants, including Humboldt Mine (USA, 1954), Republic Mines, (USA, 1956), and Anshan Iron & Steel Corporation, (China, 1958).

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