Effect of Sodium Polyphosphate on the Flotation Separation …

The flotation test revealed that SP significantly inhibited dolomite flotation, which is reflected by the decrease in its contact angle. Among them, SP was selectively …

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Effects of ultrasonic treatment on the flotation behavior of …

Additionally, the flotation recovery of dolomite improved to a certain extent after ultrasonic treatment, although the improvement was relatively weak. The SI index was increased, with simultaneous ultrasonic flotation treatment showing the most notable effect. Magnesite concentrate recovery increased from 71.46% to 91.06%, and the concentrate ...

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Beneficiation of phosphatic ores through flotation: Review …

Tailing Slime pond - 0.i mm ~/ O.6-O.i m Scrubbing Desliming 1 twofold flotation lrst Concentrate I I Conditioning i I J I Matrix ConventiOnal washer Classifications b Coarse reject + 6.3 mm 0.6--1 mm Hea~med ia D i Sink I #product Rod Milling 0,6 screening Deslim~ng Twofold flotation Amine + kerosene B~fS Dolomite flot- …

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Selective adsorption of a high-performance depressant onto dolomite …

The flotation results indicated that, when sodium oleate (NaOl) was used as the collector, HEDP displayed an outstanding depression effect on the dolomite flotation, whereas it had only a slight influence on the magnesite flotation. Dolomite and magnesite could be efficiently separated at approximately pH 10 with a reagent scheme of 200 …

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US2507013A

Froth flotation of calcite containing dolomite or magnesite Download PDF Info Publication number US2507013A. ... dolomite froth Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

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Interaction of Ca2+, Mg2+ with dolomite (1 0 4) surface and …

The flotation of dolomite and fluorapatite as a function of Ca 2+ and Mg 2+ concentrations is shown in Fig. 4. The flotation recovery of dolomite in the presence of Ca 2+ is higher than that of Mg 2+. ... (FC), and flotation tailing (FT), the dissolution of metal ions from mineral surface and its effect on mineral surface wettability were ...

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New insights into the influence of mineral surface …

The tailing samples were mixed using a mechanical agitator for 20 min to ensure homogeneity. Representative samples were collected for the flotation and mineralogical analyses of raw ore. ... dolomite and calcite. Flotation experiments reveal that the application of 2-Cl-9-ODA collector, in conjunction with sodium pyrophosphate …

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Analysis of selective modification of sodium dihydrogen phosphate …

1. Introduction. As the primary sources of magnesium, magnesite ores are usually used in various industries in the world [1].Magnesite and dolomite are important mineral commodities, which are widely utilized in agriculture, chemical, construction, environmental, and metallurgical [2], [3].An increase in the demand for magnesite, which …

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Reverse flotation separation of calcite/dolomite from …

The effects of pulp pH on the flotation recoveries of calcite, dolomite, and hemimorphite are presented in Fig. 1.As depicted, within the studied pH range, the recoveries of both calcite and dolomite were close to or greater than 90% with the use of 0.1 mM sodium oleate, demonstrating the good floatability of calcite and dolomite with …

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Selective adsorption of an eco-friendly and efficient …

After that, the concentrate and tailing products were filtered, ... When PBTCA concentration increased to 0.2 mM, dolomite flotation was depressed (13.48% of recovery) while most of the fluorapatite was still recovered (91.21% of recovery). Therefore, a good reagent scheme for separating fluorapatite from dolomite was deemed to be …

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Flotation Separation of Magnesite from Dolomite …

Floatability of magnesite and dolomite with mixed depressants at various mass ratios (C (NaOL) = 120 mg/L; pH = 10.5; C (SSZS) = 180 mg/L). The results of the flotation test of the pure …

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Beneficiation of flotation tailing from Polish copper sulfide …

Flotation tailing of Polish copper sulfide ores represents more than 90% of the mass of run-of-mine ore. The tailing contains mainly quartz, dolomite, clay minerals, traces of sulfides, and some accessory minerals. Almost all minerals of the tailing are well liberated and, therefore, any further beneficiation process applied to the tailing is ...

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Simultaneous separation of quartz and dolomite from …

The results of micro-flotation tests indicated that MSP had a selective activation effect on the dolomite flotation, which made the flotation behavior of dolomite similar to that of quartz under DDA as a collector. ... Finally, the concentrate and tailing were separately weighed and assayed for MgO, SiO 2 and CaO to determine the …

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Method for recovering barite from lead and zinc tailings

The present invention's dolomite very similar to flotation nature is separated with barite, adopt the sulfuric acid of volume ratio 1: 1: waterglass mixture is as the inhibitor of dolomite mineral, make bar collecting agent with dodecyl sodium sulfate, obtain the barite concentrate of high-quality.The present invention is adopted effectively to ...

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Phosphorus recovery from phosphate tailings through a two …

Phosphate tailing used in this study was the residue after the flotation of phosphate rocks, which were collected from a phosphorus chemical industry in Hubei Province, China. The phosphate tailing was dried at 105 °C for 2 h to remove moisture, followed by sieving through a 200-mesh sieve for subsequent leaching procedures.

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Removal of dolomite and potassium feldspar from apatite …

The flotation tests showed that dolomite and potassium feldspar can be successfully removed from apatite simultaneously when the molar ratio of DTAB to NaOL was 2:1 with pH 4.5. Zeta-potential and microcalorimetry detection suggested that NaOL and DTAB were adsorbed on the surface of dolomite and potassium feldspar …

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US2507012A

Definitions. This invention relates to the beneflciation by froth flotation of ores relatively rich in calcite containing an undesirable proportion of magnesium carbonate in the form of magnesite (MgCOa) or dolomite (CaCO3.MgCO3). More particularly, the invention relates to the removal as a froth concentrate of magnesite or dolomite from calcite and …

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Flotation Behaviors of Magnesite and Dolomite Using a …

As shown in Fig. 4, compared with the single collector of NaOL, the flotation recovery of magnesite with the mixed collector NaOL-DP improves 10–40% at the specified pH range, except for the condition of pH 11 declining 5%.The maximum recovery of 85% for magnesite was obtained at pH 10, and the selectivity index of two minerals was 3.78. …

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Impact of Sodium Hexametaphosphate on the Flotation of …

This study investigates the flotation beneficiation of ultrafine magnesite rich in dolomite from desliming, currently reported to the tailings.

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Beneficiation of limestone plant rejects for value addition

EDAX analysis data of concentrate indicate, Ca content varies from 27.62 to 38.82 with average Ca content is around 33.02. Higher Mg in the concentrate accounts for presence of dolomite along with calcite. The flotation tailing mostly consists of quartz and clay with very little amount of calcite.

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Impact of Sodium Hexametaphosphate on the Flotation of …

The dolomite content in the concentrate is about 20%, where 80% of dolomite was removed and importantly 98% of the quartz was removed, with only 0.3% of the quartz in the final concentrate.

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Cassiterite recovery from a sulfide ore flotation tailing by …

In this study, the gravity and flotation separation techniques are combined to recover cassiterite from a sulfide ore tailing. The Sn grade and recovery of the final concentrate is 31.40% and 88.05%, respectively, thus indicating a highly efficient recovery of cassiterite by using the combined gravity and flotation separation technique.

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Testing of 17-different leaching agents for the recovery of …

The effect of four different oxidants on the dissolution of zinc from the flotation tailing in sulfuric acid solution was tested (Fig. 3 (a-d)). 87.1% Zn, 1.9% Pb and 11% Fe dissolutions were obtained using 1 g/L potassium permanganate (KMnO 4) as an oxidant addition in 1.0 M sulfuric acid solution at 40 °C leaching temperature and solid-to ...

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New insights into the influence of mineral surface …

The ore samples used in this study were obtained from a low-grade phosphorus-containing iron tailing. The tailing samples were mixed using a mechanical agitator for 20 min to ensure homogeneity. Representative samples were collected for the flotation and mineralogical analyses of raw ore. The chemical compositions of the ore …

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Effect and mechanism of phosphoric acid in the apatite/dolomite …

As shown in Fig. 3, as the NaOL dosage increases, the recoveries of both apatite and dolomite are enhanced.At higher dosages (≥ 25 mg/L), recoveries of both minerals are close to the maximum values.Therefore, 25 mg/L is considered the optimal NaOL dosage for apatite and dolomite flotation.The recovery of dolomite is higher …

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Effect of dissolved metal ions from mineral surfaces on the …

The phosphorite in sedimentary phosphate ore is mostly associated with gangue minerals such as dolomite, and the average grade of P 2 O 5 is lower than 17 % [5]. Flotation is the commonly employed approach to separate fluorapatite and dolomite using fatty acid collectors [6], [7]. However, fluorapatite and dolomite are both calcium-bearing ...

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Selective depression by using environment-friendly …

Flotation recovery rate was calculated with the particle weight distribution in the concentrate and tailing products by using Eq. (1). At least three parallel experiments were performed, and average was reported. ... Fig. 4 shows the effect of pH on apatite and dolomite flotation recovery with respect to the pulp pH at 7.5 × 10 −5 mol/L NaOL ...

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Improving flotation separation of apatite from dolomite …

Flotation results have demonstrated that PAMS depressed selectively the dolomite flotation to acquire the selective recovery of apatite. Its depression …

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Selective adsorption of a new depressant Na2ATP on dolomite

In this paper, Na 2 ATP was first applied as a depressant in the flotation separation of magnesite and dolomite with sodium oleate. The significant influence of Na 2 ATP on the flotation behavior of magnesite and dolomite was investigated via flotation tests. The selective adsorption behavior of Na 2 ATP on different mineral surfaces was …

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Selective depression of phenoxyacetyl chloride on magnesite

The concentrate and tailing products were assayed for MgO and CaO grades via chemical analysis, to calculate the magnesite and dolomite recoveries in the concentrate. ... A study shown that the dissolution rate of dolomite during flotation is much higher than that of magnesite (Chen and Tao, 2004, Filippov et al., 2023, Sun et al., 2022). It is ...

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CN108654830A

The invention discloses a kind of methods that dolomite type magnetic iron ore magnetic tailing recycles fluorite and dolomite.Include the following steps：（1）Grinding operation：Dolomite type magnetic iron ore magnetic tailing is further finely ground to 0.074mm and accounts for 92.23% 95.02%；（2）Bulk flotation operation：One …

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Article Flotation Separation of Dolomite from …

In this study, sodium dodecyl benzene sulfonate (SDBS), a low‐cost and freely soluble reagent under low temperature was used to examine its collecting ability and selectivity …

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pH dependence of electrokinetic behavior of dolomite and …

The dissolved metal ions have a significant effect on the wettability of mineral surface in flotation slurry. In this work, the composition and characteristic of phosphate ore raw (R), flotation concentrate (FC), and flotation tailing (FT), the dissolution of metal ions from mineral surface and its effect on mineral surface wettability …

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Effect of depressants on flotation separation of magnesite …

The flotation separation of magnesite from calcium-containing minerals has always been a difficult subject in minerals processing. This work studied the inhibition effects of carboxymethyl cellulose (CMC), sodium lignosulphonate, polyaspartic acid (PASP) and sodium silicate on flotation behaviors of magnesite, dolomite and calcite, …

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