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Patent Us2423022 Froth Flotation Of Silica From Iron Ore By

Aug 25 2017 Improved sparge compositions for reverse froth flotation separation and uses thereof and methods of reverse froth flotation are described The sparge compositions comprise sulfonated polymeric modifiers which can act as dispersants and depressants and the compositions are suitably used in the reverse froth flotation of particulate material containing ultrafine particles