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.

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Cellulase as a new phosphate depressant in dolomite

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. Keywords: flotation, cellulose, cellophane, dolomite, oleic acid Introduction The phosphate/oleic acid flotation system has been studied extensively since the beginning of the flotation reached.

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PDF To all who contributed and guided me in the accomplishment

10. The concentrate is reconditioned (30 seconds) with sulfuric acid (maintains pH 4-5). This is followed by flotation to remove dolomite. Final processing involves cationic flotation of the fine silica from the dewatered dolomite flotation cell. Resulting phosphate concentrate contained ~ 28% P 2 O 5, ~ 1% MgO and 2.9% insolubles.

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Purification of sphalerite concentrate in the chemical and

Purification of sphalerite concentrate in the chemical and flotation way. In this paper the results of the investigation of magnesium removal, from zinc concentrate derived from zinc-lead ore enrichment plant, have been presented. The characteristics of the initial concentrate and the occurrence forms of dolomite in this material are estimated.

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Specific Refractory Gold Flotation and Bio-Oxidation

One concentrate was predominated by dolomite (hereafter referred to as dolomite-containing flotation concentrate—DC) whilst the other was predominated by apatite (hereafter referred to as apatite-containing flotation concentrate—AC). Both dolomite and apatite were initially present in the two flotation feed ores, however, their variable

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Froth Flotation Circuit Design And Basic Testwork

Froth flotation is a very important mineral concentration process that is used to recover a vast array of different minerals containing valuable commodities such as copper, lead, zinc, nickel, molybdenum, tungsten, silver, gold, phosphate and potash.

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PDF) Flotation of chromite and serpentine

In column flotation tests for the fresh wastewater stream containing 3% chromite fines, a recovery and grade of approximately 40% and 43.5%, respectively were obtained with sodium dodecyl sulphate

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The production of ferroniobium at the Niobec mine

A rougher carbonate concentrate is floated in two flotation columns followed by a bank of 2 DR-300 cells. Feed to the cells is maintained at 43% solids. About 30% by weight of the mill feed is floated off. The flotation concentrate consists of very fine calcite particles -50 µm ) (and medium size apatite.

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Dolomite flotation of high magnesium phosphate ores using

iii collecting ability and flotation selectivity. When 10% of DSS1 was used with the fatty acid soap as collector, at least 10% more dolomite can be removed with less P

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Dolomite Mining Process

Dolomite mining process is the solution of separating dolomite concentrate from Dolomite raw ore. Based on mosaic structure of the Dolomite mine and years of mining process experiences, we applying Dolomite mining process of two-stage crushing, washing, then three-stage separating, flotation process will be used to process Dolomite with complex structures.

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Dolomite Crusher, Dolomite Mining, Dolomite Mines, Dolomite

【Process Introduction】 Dolomite mining process is the solution of separating dolomite concentrate from Dolomite raw ore. Based on mosaic structure of the Dolomite mine and years of mining process experiences, Xinhai applying Dolomite mining process of two-stage crushing, washing, then three-stage separating, flotation process will be used to process Dolomite with complex structures.

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Cellulase as a new phosphate depressant in dolomite-phosphate

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. Keywords: flotation, cellulose, cellophane, dolomite, oleic acid Introduction The phosphate/oleic acid flotation system has been studied extensively since the beginning of the flotation reached.

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Improving flotation separation of apatite from dolomite

1/9/2020 · Moreover, the selectivity index (SI) was used to evaluate the impact of PAMS on the separation features of apatite and dolomite by direct flotation, and its calculation formula is expressed as follows (Cao et al., 2019b): (1) SI = ε C A ε T A × ε T D ε C D where SI is the selectivity index; ε C A and ε C D express the apatite and dolomite recoveries in concentrate, respectively; ε T A and ε T D represent the apatite and dolomite

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US6341697B1 - Selective flotation of phosphate minerals

A method is disclosed for separating phosphate minerals from a mineral mixture, particularly from high-dolomite containing phosphate ores. The method involves conditioning the mineral mixture by contacting in an aqueous in environment with a collector in an amount sufficient for promoting flotation of phosphate minerals. The collector is a hydroxamate compound of the formula; wherein R is

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PDF) Separation of dolomite from phosphate minerals by

A phosphate concentrate containing 0.5% MgO and 32.2% P2O5 was obtained from a mixture of natural pure phosphate and dolomite minerals containing 10.2% MgO and 24.1% P2O5 at a recovery of 88% when

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Minerals | Free Full-Text | Influence of Sodium Phosphate

However, the flotation recoveries of the two minerals are not much different, as the difference in recoveries of magnesite and dolomite should be enlarged further, and the recovery of dolomite should be reduced to a certain value at the same time, in order to achieve the effective flotation separation and obtain the magnesite concentrate with

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Fine particle flotation for Florida dolomitic phosphate

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% P 2

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Mountain Pass rare earth mine - CONCENTRATION OF MINERALS

The bastnäsite ore was finely ground, and subjected to froth flotation to separate the bulk of the bastnäsite from the accompanying barite, calcite, and dolomite. Marketable products include each of the major intermediates of the ore dressing process: flotation concentrate, acid-washed flotation concentrate, calcined acid-washed bastnäsite

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dolomite flotation concentrate

dolomite flotation concentrate. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals.

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22 - Flotation of Niobium

The calcite/dolomite in actual practice is recovered using fatty acid as a collector and starch or dextrin as the pyrochlore depressant during calcite–dolomite flotation. A number of studies have been conducted [1,2] in which different fatty acid modifica-tions were examined. High selectivity and high calcite–dolomite recoveries were obtained

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Flotation Research on Dolomite-Containing Magnesite Ore

The rougher concentrate product was reground to 100 % -125 μm and floated at the predetermined optimum flotation conditions. Clean talc concentrate at a recovery of 70% with a grade of 93.5 %

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Promising options for solving the dolomite problem ... - SME

Option I entails three methods for reducing MgO content in the concentrate from the Crago process, including adding a dolomite depressant in the rougher flotation step, dolomite flotation of the cleaner concentrate, and scrubbing the cleaner concentrate in quartz sand, which could reduce MgO content in the final concentrate by 20 to 40 percent.

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A Review of Flotation Separation of Mg Carbonates (Dolomite

Minerals 2018, 8, 354 3 of 13 Table 1. Cont. Particle Size Fraction ( m)Flotation Type Dolomite Recovery (%) Associated Mineral Recovery (%) Mineral Type References 100 + 74 Reverse ~15 Apatite: ~85 Pure mixture

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An Alternative Flotation Process for Apatite Concentration

Flotation carbonates Air Apatite concentrate Froth Conditioning-50% solids-Collector(sulphosuccinate) LuprominFPA 711-Corn starch (depressant)-pH –9,5 -NaOH H2SO4 Calcite/dolomite. Two stage conditioning process. Carbondioxideapplyedin flotation. Bulk concentrate Apatite and carbonates Carbonicgasapplyedin flotationof phosphatesores (Brazil

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dolomite flotation concentrate

Dolomite mining process dolomite mining process is the solution of separating dolomite concentrate from dolomite raw ore based on mosaic structure of the dolomite mine and years of mining process experiences, xinhai applying dolomite mining process of twostage crushing, washing, then threestage separating, flotation process will be used to

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