Apatite Flotation Concentrate

Analysis of the Effect of Surfactants on the Performance of Apatite …

Given that particle and bubble size, as well as their surface properties, are pivotal in froth flotation, surfactants have been extensively employed due to their impact on bubble size and froth stabilization. This study aimed to investigate the influence of surfactants on the performance of apatite flotation in column. Three different categories …

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Use of fatty acids with an ethoxylated alcohol for apatite flotation

Phosphate is recovered mainly by direct flotation from apatite-bearing ores of these igneous deposits. Fatty acid collectors (tall oils, vegetable oils and their derivatives) are used, in general, for apatite flotation (Filippova et al., 2014).Corn starches are utilised in depressing gangue minerals in all Brazilian concentrators (Guimarães et al., 2005).

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Valorization of apatite mining flotation residues by the …

The work described here explores the possibilities of recycling 5.5 Mt/year of a flotation residue from an apatite ore, forecasted to be exploited for phosphate …

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Effect of sodium silicate on the reverse anionic flotation of a

The feed sample, with 57.20% Fe, 6.42% SiO 2 and 0.748% P was mainly composed of haematite and magnetite and the main gangue minerals were apatite and quartz. The results of flotation tests showed that sodium silicate performed better as depressant of iron oxide, but had little effect on silica flotation in the apatite–iron …

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Effect of Acidified Sodium Silicate on the Flotation …

In this work, selective flotation separation of microfine apatite and chlorite was achieved by using sodium oleate (NaOL) as a collector with a low dosage of acidified sodium silicate (ASS) as a depressant. The optimum ratio of sodium silicate to sulfuric acid for ASS was 5:3, and a good separation effect was also achieved in the mixed ore …

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Exploration of disodium methylenebis naphthalene …

Hence, the direct flotation method is introduced to concentrate apatite from phosphate ores to remove dolomite and Fe-bearing minerals and silicate minerals. However, the similar interfacial properties of apatite and dolomite normally lead to the difficult separation between these two minerals when using fatty acid as the collector …

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Nanobubble-Assisted Flotation of Apatite Tailings: Insights …

The application of nanobubbles through flotation of coarse apatite tailings evidently improved the process' metallurgical responses compared to flotation by …

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Analysis of the Effect of Surfactants on the Performance of …

Given that particle and bubble size, as well as their surface properties, are pivotal in froth flotation, surfactants have been extensively employed due to their impact …

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Exploration of disodium methylenebis naphthalene …

The results of the artificial apatite-dolomite mixture flotation revealed that the grade and recovery of P 2 O 5 were 34.89 % and 84.93 % in the obtained apatite concentrate with 15 mg/L DMNS and 2 × 10 −4 mol/L NaOl. The adsorption and zeta potential measurements indicated a weak interaction of DMNS with apatite surface can …

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Apatite Flotation from Brazilite–Apatite–Magnetite Ore

Flotation selectivity of apatite with Phospholan PE65 and Аrcomon SO is determined by less yield of magnesium-containing silicates in the concentrate as compared to flotation with saponified tall oil fatty acids, though these reagents are sensibly less selective than Flotol-7,9 which yields much lower content of magnesium and silicium in the ...

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Apatite flotation using pataua palm tree oil as collector

The procedure consisted of weighing 1 g of the −300 + 106 µm mineral sample, conditioning it in a 50 mL of concentrate collector solution for 5 min, at the adjusted pH, and completing the volume of the tube with deionized water at the pH …

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Recovery of Apatite from Magnetic Concentration Tailings …

It is observed that after 10 min of flotation, the recovery of apatite is 78%; however, longer times do not increase the recovery and result in a reduction in …

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Titanite Ores of the Khibiny Apatite-Nepheline-Deposits: …

Geological setting and mineral composition of (apatite)-nepheline-titanite ore from the Khibiny massif enable selective mining of titanite ore, and its processing with sulfuric-acid method, without preliminary concentration in flotation cells. In this process flow diagram, titanite losses are reduced by an order of magnitude in comparison with a …

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The utilization of 1-Dodecyl-3-methylimidazolium bromine …

Feldspar in phosphorus concentrate could be removed by directed flotation of apatite or reverse flotation of feldspar [4]. Directed flotation has a good effect on removing feldspar, however, in the directed flotation, the energy consumption was extremely high due to that the collectors need to be heated to dissolve [26].

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The selective flotation separation of apatite from dolomite …

However, the flotation of apatite encounters significant difficulties in achieving high separation efficiency, particularly when dolomite, a carbonate mineral, is predominant as the gangue mineral. ... whereas the MgO grade in concentrate decreased by 4%. Additionally, 76.44% of apatite was recovered in the concentrate while a …

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Effect of ionic species on the performance of apatite flotation

The apatite recovery of each flotation test was calculated by Eq. (1). (1) R a p (%) = M C ⋅ x a p, C M F ⋅ x a p, F × 100 where R ap is the apatite recovery, M F is the mass (g) fed into the column, M C is the mass (g) of the floated fraction, x ap,F is the apatite content in the flotation feed sample, and x ap,C is the apatite content in ...

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Recovery of apatite from flotation tailings

Recovery of apatite from flotation tailings ... and xap,F is the P2 O5 content of the concentrate. The flotation selectivity between apatite and these main gangue minerals was quantified by the selectivity ratio. The selectivity ratio for the main undesirable species (Fe2 O3 and SiO2 ) is defined according to Eqs. ...

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The effects of pH regulators on the flotation separation of …

Sphalerite (ZnS) is a major mineral containing zinc, accounting for more than 90 % of the raw material for zinc smelting [1]. It is often associated with magnesium-rich dolomite (CaMg(CO 3) 2) [2].Dolomite easily enters the concentrate during the sphalerite flotation, leading to excessive magnesium oxide in zinc concentrate [3].

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Flotation separation of apatite and calcite using gum arabic …

The results of single mineral flotation experiments showed that GA performed a considerable selective depression on calcite at pH 7–11, and a concentrate with apatite recovery of 88.84% and P 2 O 5 grade of 26.86% was obtained in the apatite-calcite binary mixed mineral flotation experiment. Therefore, GA can be used as a …

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Enhancing froth flotation performance of iron oxide apatite …

Due to the increasing cost of these common apatite flotation collectors and high dosage requirements, studies have been carried out aiming to reduce collector consumption without compromising the flotation performance. ... A sample of 1.5 g sulfuric acid-treated apatite concentrate with a narrow and not too fine or too coarse size range …

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Recovery of apatite from flotation tailings

As said before, in the industrial flotation of phosphate ore, a selectivity ratio of about 4.0 between apatite and iron minerals and of 10 between apatite and silicate …

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Selective flotation of apatite from iron oxides

The effects of the key variables on the selective flotation of Mt. Weld phosphate ore were studied with the aim of optimizing the flotation process to yield a concentrate of the following specifications: >36% P 2 O 5, <3% Fe 2 O 3, P 2 O 5 (Fe 2 O 3 + Al 2 O 3) >10 at a P 2 O 5 recovery of >70%. The main difficulty was to reduce the …

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(PDF) Flotation separation of titanite concentrate from apatite …

Titanium raw materials are widely used for the synthesis of various functional materials – sorbents of radionuclides and rare earth elements, various additives, filler pigments, etc. Since most of titanium concentrates are imported, in line with the

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Apatite Concentrate, A Potential New Source of Rare Earth …

In the present study apatite concentrate originating from iron ore beneficiation done by LKAB in Kiruna, Sweden, is explored as a possible source for REEs. The composition and distribution of the REEs within the concentrates are studied using ICP-MS, XRD and SEM-EDS/EPMA, as well as the melting point and heat of fusion using DTA-TGA-MS.

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A Study on Apatite Recovering from the Tailing of the Bac

- By the process of re-grinding and column flotation, from the preliminary flotation concentrate, a final apatite concentrate with a content of 30.68% P 2 O 5 can be …

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Chemical compositions of apatite concentrate.

Zhang and Muhammed [319] proposed an acid regenerating and integrated process for the treatment of apatite concentrate obtained from the acid dephosphorization of iron ore and solutions obtained ...

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A Critical Review on the Flotation Reagents for Phosphate …

The results showed the polyacrylamide could effectively inhibit apatite flotation and, therefore, had a good application prospect in the beneficiation of siliceous phosphate ores. ... (PESA) on calcite during apatite flotation. Eventually, a concentrate with 32.74% P 2 O 5 and 84.82% recovery was obtained when 80 g/t PESA was added.

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Flotation Behavior and Interface Characteristics of Apatite …

Zou studied the depression mechanism of sulfuric acid on apatite during the reverse flotation of apatite and dolomite, and found that sulfate can react with calcium on the surface of ... and found that the sulfur–phosphorus mixed acid could depress the apatite effectively; a concentrate with P 2 O 5 content of 28.4% and a corresponding ...

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Flotation separation of quartz from apatite and surface …

Introduction. Flotation, which is a kinetic process involving 3 phases, such as solid (particles), liquid (water), and gas (air), is a widely used technique in mineral processing to recover a useful resource [1].Unfortunately, the models for understanding the phenomena of particles and bubbles in flotation involve complicated interactions …

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Enhancing selective calcite and dolomite flotation in the …

Additionally, compared to the flotation feed and the phosphate concentrate, the apatite particles spotted in the carbonate concentrate are overall finer, with a higher percentage of under 40 µm particles (Fig. 16). Ultimately, the 12.3% apatite included in the carbonate concentrate is, mostly, due to mineral associations.

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A Study on Apatite Recovering from the Tailing of the Bac

The results showed that in the preliminary flotation process, apatite concentrate with a content of up to 23.50% P 2 O 5 was obtained with a recovery of 77.92%. 3.3 Column Flotation. Column flotation is applied to reclean the preliminary flotation concentrate after its regrinding to improve the quality. The column flotation device is fitted ...

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Stimulation of flotation of rebellious apatite-nepheline ore …

The recommended approach to produce the phosphate concentrate is desliming followed by reverse flotation of apatite and an acid leaching of the apatite concentrate to lower the MgO content below ...

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Investigations of amino trimethylene phosphonic acid as a …

The mixed minerals flotation showed that an apatite concentrate with the 28.36% P 2 O 5 grade and 83.95% recovery could be obtained from flotation feed (17.93% P 2 O 5 grade) using the reagents scheme of ATMP/NaOl, confirming their high efficiency.

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ENRICHMENT OF APATITE-BEARING IRON ORE BY MAGNETIC SEPARATION AND FLOTATION

In this study, enrichment possibility of apatite-bearing iron ore sample was investigated to obtain iron and phosphate concentrate, separately. It was determined that the raw ore contains 35.75% ...

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Selective flotation separation of apatite from dolomite …

At a P (AA-AMPS) concentration 0.24 kg/t, after the roughing flotation, an apatite concentrate with a P 2 O 5 grade of 38.53% and a MgO grade of 0.85% was obtained, in which 80.25% of apatite was recovered, while only 17.44% of dolomite was floated. These results show that 82.56% of dolomite was removed by the addition of P …

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Selective flotation separation of spodumene from feldspar …

The selectivity in flotation separation of spodumene from other pegmatic aluminosilicates such as feldspar and mica, using a single fatty acid anionic collector, is found to be very difficult. It is attributed to the same surface Al site for interaction with fatty acid. In this study, a collector mixture of sodium oleate (NaOL) and dodecyl trimethyl …

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Measurement of collector concentrations to make an …

Assessment of responses for apatite flotation tests which their collectors were designed by MD showed that Dirol has the highest selectivity whereas Alke has the highest collectivity for the direct flotation of apatite. According to the experiments, the MD model computed that a mixture collector with Dirol: 364 (g/t), Alke: 295.2 (g/t) and ...

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Improved Flotation Separation of Apatite from Calcite with

ABSTRACT. Apatite (Ca 10 (PO 4) 6 F 2) is the most important phosphate mineral, and flotation is the main beneficiation method to separate apatite from its major gangue mineral calcite (CaCO 3).Till date, fatty acids and their salts have been widely used as collectors in the apatite/calcite flotation separation due to their low cost and strong …

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