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NIOSHTIC The flotation process includes depression of phosphate minerals with fluosilicic acid and anionic flotation of carbonate minerals, followed immediately by cationic flotation of silica In laboratory and pilot plant tests the washing-sizing beneficiation plant feed ore was screened at 150 mesh and classified in hydrocyclones at 20 um...
Pyrite unintentional pyrite flotation is undesirable in a Cu-Au ore flotation circuit due to the detrimental effect on Cu final grade Therefore, in order to improve final concentrate grade, pyrite depression strategies (eg aeration, sulphite, cyanide addition, etc) have been used over the years to minimise pyrite recovery...
Copper Iron Flotation From Ethiopia Copper Iron Flotation From Ethiopia Copper ore divides into ore sulfideore oxide and mixing ore according to its oxide rate the main process for copper ore is flotation for refractory mixed copper ore and refractory oxide ore normally use hydrometallurgy process is a high technological ent...
Selective flotation of phosphate The observed optimum flotation of calcite and dolomite by carboxylic acids as a function of the starch consumption, and the subsequent depression of flotation, may be chiefly due to the adsorbed conformation structures of the starch molecules to the strength of the hydrogen bonds with the surfaces of hydrated minerals...
EP0453677A1 A flotation process is disclosed wherein the selectivity to the valuable mineral is improved by the depression of silica or siliceous gangue by the use of a hydroxy-containing compound such as an alkanol amine The process is useful in the flotation of oxide minerals as well as in sulfide flotation...
Calcium Carbonate Flotation Machine Carbonate Depression In Flotation carbonate depression in flotation flotation routes for a phosphate ore bearing silicatecarbonate gangue ii calcite flotation in the presence of carbon dioxide followed by apatite iii carbonate flotation with oleic acid at pH mechanism of apatite depression and...
Minerals | Free Full Bastnaesite is the principal source of light rare earth elements, containing the cerium subgroup or lighter rare earth elements []Froth flotation is an effective method for separating bastnaesite from gangue minerals [1,3] and has received increasing attention in recent yearsHydroxamic acid is a widely used collector in bastnaesite flotation [4,5,6,7]...
Depression of Gangue Minerals Using Tailor Carboxymethyl cellulose, CMC, is widely used in mineral processing as a flotation depressant, mainly for the depression of carbonate and talcaceous gangue in the flotation of Cu-Ni sulfide and PGM or Although CMC is a common depressant that can be used in the flotation of different ores, understanding of the interaction mechanisms between CMC and....
Calcium chloride Calcium chloride is an inorganic compound, a salt with the chemical formula CaCl 2It is a white coloured crystalline solid at room temperature, and it is highly soluble in water It can be created by neutralising hydrochloric acid with calcium hydroxide Calcium chloride is commonly encountered as a hydrated solid with generic formula CaCl 2 (H 2 O) x, where x = 0, 1, 2, 4, and 6...
Calcite carbonate and phosphate can be somewhat altered in the presence of one another Carbonate and phosphate species can be expected to chemisorb - --on the calcite surface and thus can compete with oleate for the surface Casites resulting in flotation depression Ca on the ~ - - -...
NIOSHTIC A flotation process was developed by the Bureau of Mines for separation of carbonate and phosphate minerals, occurring in unaltered phosphate ores of the phosphoria formation The process involves depression of phosphate minerals with fluosilicic acid and flotation of carbonate ,...
EP0453677B1 EP0453677B1 - Depression of the flotation of silica or siliceous gangue in mineral flotation - Google Patents Depression of the flotation of silica or siliceous gangue in mineral flotation Download PDF Info Publication number EP0453677B1 EP0453677B1 ....
Copper Molybdenum Flotation depressant Recovery of copper is by standard flotation reagents identified in the copper ore flotation description Molybdenum will float naturally with the copper but can be crowded in the froth by the copper mineralization and use of a moly collector (such as diesel oil, kerosene, refined oils, pine oil or xanthate ester) enhances its floatability...
Minerals | Free Full Determination of the appropriate depressing reagents for sinking valuable minerals in the presence of collectors for carbonates is a cardinal stage in obtaining an efficient separation in the direct flotation of Mg carbonate One of the essential challenges during flotation in the presence of Mg carbonate is the occurrence of slim...