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Silica Reduction In Iron Ores By Reverse Flotation

role of silica and alumina content in the flotation of iron ores,in reverse flotation, the removal of silica from iron ores is typically carried out by amine based collectors. reagents such as dodecylamine, ether amines, ether monoamines, di-amines and quaternary ammonium salts are used in cationic flotation ( ma et al., 2011 , vieira and peres, 2007 )..laboratory column flotation studies for reduction of alumina and …,earlier studies (rao et al., 2011; vijaya kumar et al., 2005a, 2005 b, 2010) on iron ores of india indicated that slilica and alumina could be reduced by reverse cationic column flotation as a value addition step on a pre-concentrate obtained from an another.(pdf) reverse cationic flotation of iron ores with complex silicate …,starch is the most widely used depressant in the reverse cationic flotation of iron ores. there is however, an indication from recent studies, that other polysaccharides may successfully replace them..froth flotation of iron ores,a variety of flotation routes have been developed to remove silica from iron minerals. the flotation routes of iron ore can be classified into five major groups, i.e. cationic flotation of iron oxide, cationic flotation of quartz, anionic flotation of iron oxide, anionic flotation of quartz, and combination.

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