20151212 · Review of reverse flotation of iron ore is presented with a focus on the polysaccharide depressants used and the corresponding adsorption phenomena. Iron oxide minerals have a special affinity for starch and other polysaccharides, and this special property facilitates their depression during the reverse cationic flotation of silica with ether …
view more201381 · Reverse flotation studies indicated ∼65% Fe with 85% recovery. Four different starches, namely soluble starch, corn starch, potato starch and rice starch with different characteristics have been studied as depressants for hematite in cationic flotation using dodecylamine as the collector. Surface charge measurement and Fourier transform ...
view more2021814 · A broad application of this process in industrial field is the flotation of iron ores which is of two types: direct and reverse flotation.
view more201711 · For this purpose the effect of collector type, pH, collector concentration and stage dosing on reverse flotation of iron sulfide ore from magnetite ore was investigated.
view more201221 · The presence of slimes is, in general, harmful to the flotation of iron ores, affecting the selectivity and the quality of the concentrates, besides causing an increase in reagents consumption. Th ...
view more2014310 · Highlights • The main routes of iron ore flotation were reviewed. • Reverse cationic flotation is the most used flotation method of iron ore beneficiation. • Ether amines and starches are usually used as collectors and depressant, respectively. • Selective depressants for Fe-bearing silicates deserve further investigations.
view more2021120 · The Froth Flotation Process is about taking advantage of the natural hydrophobicity of liberated (well ground) minerals/metals and making/playing on making them hydrophobic (water-repel) individually to carefully separate them from one another and the slurry they are in. For this purpose we use chemicals/reagents:
view more2010101 · Iron ore concentration through flotation represents an important application of reagents in mineral processing. Nowadays all Brazilian iron ore concentrators use starch as iron oxides depressant.
view more2015328 · The term beneficiation in regard to iron ores encompasses all of the methods used to process ore to improve its chemical, physical and metallurgical characteristics in ways which makes it a more desirable feed for the iron making furnace. Such methods include crushing and grinding, washing, filtration, sorting, sizing, gravity …
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