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with flotation of dolomite, a collector mixture of OA and SPE (styrylphenol polyoxyethylene ether) demonstrated significantly better performances for the fluorite. An optimal mass ratio 4 : 1 ... (concentrate and tailing) were collected, dried, and weighed. The dry weights of the two products were measured and used
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In common practice, it is impossible to realize the efficient separation of apatite from dolomite without depressant, because of the similar surface properties of two minerals and the poor selectivity of commonly used collectors (e.g., fatty acid) [5], [6].Recently, considerable investigations focused on the development of novel collectors (e.g., N-hexadecanoylglycine [7], …
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Following 5-min flotation, two collected products (tailing and concentrate) were carefully filtered, dried, and subsequently weighed. ... However, the dolomite flotation was intensely depressed by HPMA under alkaline conditions. After the addition of HPMA, as the slurry pH rose, the dolomite recovery decreased sharply from 56.20% at pH 6.03 to ...
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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 ...
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Flotation results have demonstrated that PAMS depressed selectively the dolomite flotation to acquire the selective recovery of apatite. Its depression performance relies much on …
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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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Phosphate tailing is an extremely fine by-product during phosphate ore flotation.Due to the large quantities and relatively higher P 2 O 5 content, the phosphate tailings have been considered as a potential P resource, compared to other P-bearing wastes. Besides, phosphate tailings also contain a large amount of available components, such as Ca, Mg, and Si.
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It is found that the dolomite flotation recovery was enhanced and the fluorapatite flotation was depressed by the addition of CaCl 2 at pH 5. For dolomite, ... The floated (concentrate) and unfloated (tailing) products were separately collected, dried, and weighed. The recovery was calculated as the percentage of floated product / (mass of ...
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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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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 the use of a fatty acid collector.
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In order to realize the comprehensive recovery of dolomite in the tailings after fluorite separation of Baiyun Ebo tailings, the tailings after fluorite roughing were used as flotation feed, the …
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The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical characteristic, the liberation …
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Iron concentration tailings contain many valuable minerals, including apatite, which is not currently being recovered despite its use to make fertilizers and chemicals. This article proposes a flotation circuit to recover apatite from tailings generated by mining in Chile, based on laboratory tests and using the "Split Factor" method. The iron tailings were characterized by …
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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 in a...
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Flotation Tests The micro flotation experiments were conducted using an XFG-type flotation machine (Wuhan Exploration Machinery Co., Ltd., Wuhan, China) with a 50 mL flotation cell and an impeller speed of 1800 rpm, Figure 2 presents the …
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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. The …
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In this paper, sodium pyrophosphate (NaPP) was introduced as a flotation depressant to selectively separate apatite from dolomite. Micro-flotation tests were performed to reveal the …
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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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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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Cassiterite recovery from a sulfide ore flotation tailing by combined gravity and flotation separations. ... Dolomite. CaMg(CO 3) 2. 2.40 . Anglesi te. PbSO 4. 0.73 . Chlorite - 2.35 . Quartz ...
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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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An XFG-type flotation machine with an impeller speed of 1700 rpm (Changchun, China) and a Plexiglas cell with an effective volume of 40 mL was employed for flotation testing. 2.0 g of pure magnesite or dolomite was used for single mineral flotation experiments. 1.0 g magnesite and 1.0 g dolomite were well mixed and used for artificial mixed ...
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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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In this present research, phosphate tailings is recycled by Flotation i.e. re-processing. High-purity dolomite with purity as high as 91.17% is seperated, which contains …
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Nonetheless, flotation experiments demonstrate that employing 2-Cl-9-ODA collector independently yields comparable flotation recoveries of apatite, dolomite, and calcite, posing a …
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This study investigates the flotation beneficiation of ultrafine magnesite rich in dolomite from desliming, currently reported to the tailings. The paper especially focuses on the impact of the …
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The Effect of Oleic Acid Emulsification using SPE on Fluorite and Dolomite Flotation ** ... The flotation lasted for 5 min before the products (concentrate and tailing) were collected, dried, and weighed. The dry weights of the two products were measured and used to calculate the recovery. and the reported results were averaged over at least ...
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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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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, providing guidance for the …
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Froth flotation is widely used as an effective method for separating apatite from dolomite. However, it is of difficulty to realize the efficient separation of apatite and dolomite using the ...
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Phosphate tailing is an extremely fine by-product during phosphate ore flotation. Due to the large quantities and relatively higher P 2 O 5 content, the phosphate tailings have been considered as a potential P resource, compared to other P-bearing wastes. Besides, phosphate tailings also contain a large amount of available components, such as Ca, Mg, and Si.
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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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Micro-flotation results indicated that the addition of P (AA-AMPS) could achieve the efficient separation of apatite from dolomite at pH 8.5 by selectively depressing the dolomite …
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In contrast to previous studies, which focused solely on apatite or apatite/dolomite flotation using this unconventional reagent, the present study delves into a novel perspective of this collector's function. ... : Calcite association in the tailing; DAT: Dolomite association in in the tailing; and QAT: Quartz association in in the ...
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Reverse flotation is a relatively effective method to separate apatite from dolomite. Removing dolomite reduces the MgO content, which enhances the P 2 O 5 grade of the recovered minerals (Abouzeid, 2008, Sis and Chander, 2003).However, there is still considerable uncertainty about the best strategy to effectively separate apatite from dolomite in reverse …
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Here, ε represents the flotation recovery, M 1 and M 2 represent the weights of froth products and tailing products, respectively. 2.3. Zeta potential measurement. ... WG + HEDP was performed as the mixed depressants in magnesite-dolomite-calcite flotation separation, and 20 mg/L water glass and 15 mg/L HEDP were helpful for the effective ...
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