Fine particle flotation for Florida dolomitic phosphate Fine Particle Flotation for Florida Dolomitic Phosphate Pebbles Zhengxing Gu A Florida dolomitic phosphate pebble sample was processed using a 1.2 liter stirrer-tank flotation cell and 2-in ID packed flotation column aiming at achieving a phosphate concentrate containing more than 30% P2O5 and less than 1.0% MgO contents at high P2O5 recovery.
Froth Flotation Principles Froth Flotation Process for Copper. Froth Flotation Cells are a big factor in the production of copper concentrates in various sections of the world. They are extensively used for producing a high-grade copper-sulphide concentrate low in iron.
Effect of Sodium Chloride on Dolomite Flotation Flotation response of apatite and dolomite has been studied using dodecylamine hydrochloride cationic and sodium oleate anionic collectors. Selective separation of apatite from dolomite, using dodecylamine as the collector, was predicted by the single mineral flotation results.
Selective reverse flotation of apatite from dolomite in Reverse flotation is an effective method for obtaining apatite concentrates by floating dolomite from phosphate ore Abouzeid, 2008, Sis and Chander, 2003a . The most widely used collectors for the flotation separation of apatite from dolomite are conventional fatty acids.
Effect and mechanism of phosphoric acid in the apatite To illustrate the effect of H3PO4 on the flotation separation of apatite and dolomite, mixed mineral flotation tests were carried out Table 1 . In the presence of H3PO4, a concentrate with 27.32 wt% P2O5 and 5.78 wt% MgO was obtained from the feed that contained 19.95 wt% P2O5 and 10.27 wt% MgO.
Cellulase as a new phosphate depressant in dolomite The amine flotation sink product was combined with the undersized fraction of dolomite flotation sink product to form a composite phosphate concentrate.
Flotation Research on Dolomite-Containing Magnesite Ore Because of the strong electrostatic forces, the floatability of dolomite was higher in the flotation system of lauryl amine. As the solubility product of calcium oleate is bigger, the floatability of dolomite which compared to magnesite is much higher in the flotation system of sodium oleate.
Promising Options for Solving the Dolomite Problem of the Option 2 involves crushing and grinding of high-dolomite phosphate pebbles followed by dolomite flotation at slightly acidic pH using a new collector that does not require phosphoric acid as a phosphate depressant, achieving a final concentrate analyzing less than 0.9% MgO at about 87% P 2 O 5 recovery. Option 3 is a gravity separation technique using an innovative separation jig, and its full potential remains to be demonstrated.
Cellulase as a new phosphate depressant in dolomite from the natural phosphate ore. The flotation experiments were carried out to apply this new process using the calcareous phosphate ore. Under the optimum flotation conditions, 0.04% cellulase and 0.5 mM oleic acid, a phosphate concentrate containing 0.89% MgO with a P 2 O 5 recovery of 75% was obtained from the phosphate ore containing 2.2% MgO.
Froth Flotation Principles Zinc-Copper-Gold-Silver flotation: Handling 3000 tons per day this Canadian concentrator produces 250 tons of copper concentrate with some gold and silver and 100 tons of zinc concentrate per day. Flotation is all “Sub-A” including Supercharged No. 30 machines.
Flotation of Dolomite from Apatite For artificial mixed minerals flotation experiments, the mass ratio of apatite and dolomite mineral was 1:1 for binary mixture. The flotation process was the same as single mineral tests. After the flotation process, the concentrates and tailings were assayed for P and Ca. The recovery of apatite was calculated based on P 2O
Hydrochloric acid leaching for upgrading flotation sufficient to produce a concentrate product with high Al 2 O 3 grade from the ores with a single flotation process, especially from these containing abundant carbonate minerals. In this investigation, hydrochloric acid leaching was used to remove dolomite impurity from the flotation concentrate of a bauxite ore, to improve its Al 2 O 3 grade and Al 2 O 3 /SiO 2
US4364824A The combined steps of first grinding, dolomite flotation, sizing and an amine flotation to remove insolubles silica produced a significantly upgraded phosphate concentrate product containing more than 65% BPL, less than 6% insolubles silica , and less than 1% MgO as a measure of dolomite .
Dolomite Flotation Concentrate dolomite flotation concentrate - africar-hire.co.za. Separation of magnesite from its contaminants by reverse flotation . 1966-05-11 1968-12-31 Basic Inc Selective flotation of dolomite away from magnesite achieving enhanced copper flotation concentrate grade by oxidation and flotation.
Flotation of phosphate ores containing dolomite The combined steps of first grinding, dolomite flotation, sizing and an amine flotation to remove insolubles silica produced a significantly upgraded phosphate concentrate product containing more than 65% BPL, less than 6% insolubles silica , and less than 1% MgO as a measure of dolomite .
REMOVAL OF DOLOMITE FROM PHOSPHATE PEBBLE CONCENTRATE BY Dolomite is generally concentrated in the pebble fraction, typically within the size range of 1 to 20 mm. Geological and mineralogical statistics show that up to 50% of the phosphate resource would be wasted if the lower zone is
BENEFICIATION OF DOLOMITE AND MAGNESITE vealed the presence of dolomite, calcite, talc, chlorite, iron oxides and pyrites. Flotation concentrate produced under the optimum condition of 45.8% -200 mesh grind, 1.0 kg/tonne of sod. silicate, 0.75 kg/tonne of sod. oleate and 0.02 kg/tonne of pine oil-analysed 0.37% SiO2 with 92.7% yield. After two cleanings using 0.25
An Alternative Flotation Process for Apatite Concentration An Alternative Flotation Process for Apatite Concentration of the Itataia Carbonaceous Uranium-Phosphate Ore Flotation carbonates Air Apatite concentrate Froth Conditioning-50% solids-Collector sulphosuccinate An Alternative Flotation Process for Apatite Concentration of the Itataia Carbonaceous Uranium-Phosphate Ore