Flotation Low-Grade Gold Ores
A. Preface Withinrecent years the flotation methodfor concentrating ores has been intensively developed andextended, with the result that processing costs on manyimportant ores have been considerably lowered. Exploitation of some mineral deposits would not be economicallyfeasible if flotation methods werenotused. Fiftyyears agothepossibility ofconcentrating ores byflotation …
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