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A selective dolomite flotation process has recently been developed at the University of Florida whereby a two stage conditioning technique is utilized to remove …
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flotation cell with impeller speed of 1500 r/min. A 2.0 g sample composed of dolomite and hematite in different proportions In conclusion, the results above indicate that by mass according to test design was mixed with 25 mL distilled water in flotation cell for 1dolomite with different size fractions has strong negative min.
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The micro-flotation tests of magnesite and dolomite were carried out in an XFG II type flotation cell with a 40 mL detachable cell and a stirring speed of 1600 …
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The flotation separation of dolomite and fluorapatite is difficult due to the similar surface properties. In this study, carboxymethyl cellulose (CMC) was introduced …
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1. Introduction. Calcite and dolomite are frequently encountered in sedimentary ores alongside valuable minerals. Issues arise when these latter are calcium-bearing minerals too (Jiao et al., 2023, Pereira et al., 2023).Froth flotation is usually introduced in the upgrading process of this type of ores, especially in the absence of …
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flotation cell with 40 mL of deionized water. NaOH or HCl was first added to adjust the pH value of the mineral suspensions. The depressant and collector were added in sequence and agitated for 3 min each. Each flotation time was also 3 min. Froth products and tailings were collected, filtered, dried, and weighed to calculate the flotation recovery
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The tests were carried out using a dolomite sample in a bench flotation cell with automatic froth remover. Zeta potential measurements, solution conductivity and FTIR analysis were done to support ...
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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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The recoveries of dolomite were still lower than 10 % when the PCP concentration increased to 240 mg/L in the whole pH range investigated. The results indicated that the pH value could have an impact on the flotation of dolomite when the initial concentration of PCP was increased to a high level (over 320 mg/L) compared to …
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The thus obtained post-conditioned minerals were introduced into the micro-flotation cell where separation experiments were conducted using a modified Partridge-Smith flotation cell described elsewhere ... differences measured between calcite and …
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2.9.2. DFT simulation. DFT is extensively employed to analyze the chemical reaction mechanisms between flotation reagents and mineral surfaces, thereby enhancing the …
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Single and artificially mixed minerals (mixture of magnesite and dolomite in mass ratios of 1:1 and 9:1, respectively) micro-flotation tests were performed in a 30 mL micro-flotation cell of a laboratory XFG self-aeration flotation machine (Jilin Exploration Machinery Plant, China) and the micro-flotation test is shown in Fig. 2.Micro-flotation …
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Inspired by the Tof-SIMS and XPS data, the activated product on the modified dolomite sur-face are recognized as Fe(OH)2 and FeCO3. The coordination model of flotation …
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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 …
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Activation of Dolomite Flotation by Ferrous Hydroxide and Carbonate Haiping Zhao 1,2,3, Xiaopeng Niu 1,2, Bingxu Dong 4, ... collected pulp was transferred to the 0.5 L cell, and the suspension conditioned with FeSO4 for 10 min, followed by treating with 10−3 M sodium butyl xanthate (SBX) for 10 min (The
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The tests were carried out using a dolomite sample in a bench flotation cell with automatic froth remover. Zeta potential measurements, solution conductivity and FTIR analysis were done to support ...
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In the conventional flotation cell, the detachment of particles from the bubbles due to turbulence is the main reason for the decline in the coarse particle recovery (De et al., 2007, Fuerstenau et al., 2007).However, turbulence is imperative in the flotation cell to bring about bubble particle collision, keep particles in suspension, and disperse …
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Then, 3 drops of 10 mg/mL F150 frother was added before air at a flowrate of 40 mL/min was bubbled through the cell. Flotation was conducted for 1 ... The trend for dolomite flotation with Flotinor 1682 (organic phosphoric acid) can also be explained by the speciation of dolomite and the mechanism of collector adsorption. ...
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However, oleate could adsorb on the Mg sites of dolomite which were free of pyrophosphate, hence, the depression of apatite by pyrophosphate and the flotation of dolomite. ...
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The flotation separation of dolomite and fluorapatite is difficult due to the similar surface properties. In this study, carboxymethyl cellulose (CMC) was introduced as a depressant for flotation of dolomite and fluorapatite, the adsorption mechanism of CMC on the mineral surfaces was clarified by DFT calculations, XPS analysis, zeta potential and …
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Dolomite, a prominent calcium-bearing gangue mineral found in carbonate-type zinc oxide ores, poses a significant challenge for effective flotation separation …
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The flotation cell volume is approximately 170 mL, made of glass, and comprised of three parts - the lower part has a silicate frit at the bottom; the extensor part connects the lower part and the upper part, and the upper part is where the floated fractions can be collected. ... In order to understand the behavior of monazite and dolomite ...
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After ultrasonic treatment, magnesite and dolomite achieved flotation recovery of 93.41% and 25.12%, respectively, with a float difference of 68.29%. ... Single-mineral flotation tests were performed in a 30-mL XFG hanging-cell flotation machine (rotating speed = 1992 r/min). Deionized water (20 mL) was added to each test sample. ...
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The Effect of Oleic Acid Emulsification using SPE on Fluorite and Dolomite Flotation ** ... China with a 40 mL plexiglass cell at an impeller speed of 1800 rpm. In single mineral flotation experiments, 2 g single mineral samples were added into the flotation cell containing 35 mL of DI water and the pulp was conditioned for 1 min. A desired pH ...
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Flotation experiments were carried out in a 30 mL flotation cell by adding into 2.0 g minerals samples and 30 ml deionized water. Flotation cell was suspended on laboratory XFG self-aeration flotation machine (Jilin Exploration Machinery Plant, China) operating at 1620 r/min. NaOH and HCl were prepared for adjusting the slurry pH.
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The way to successfully upgrade a phosphate ore is based on the full understanding of its mineralogy, minerals surface properties, minerals distribution and liberation. The conception of a treatment process consists of choosing the proper operations with an adequate succession depending on the ore properties. Usually, froth flotation …
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dolomite is higher than that of apatite, which is due to the strong reaction between calcium lignosulfonate and the Ca sites on dolomite. In addi-tion, there is a hydrogen bond between calcium lignosulfonate and dolomite, which further prevents the adsorption of sodium oleate to dolo-mite, thus greatly inhibiting the flotation of dolomite.
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As a commonly non-metallic element, phosphorus plays a pivotal role in living cells and is widely used in agriculture and medicine engineering (Feng et al., 2022, ... 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 in the absence and presence of pectin. In the ...
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dolomite is higher than that of apatite, which is due to the strong reaction between calcium lignosulfonate and the Ca sites on dolomite. In addi-tion, there is a hydrogen bond …
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speed of 1800 rpm, Figure 2 presents the schematic of XFG‐II flotation machine [11,12]. As for the single mineral flotation, the procedure was described as follows: firstly, 2 g of flu‐ orapatite/dolomite was added in the flotation cell with 50 mL pure water, and then stirred 2 min for dispersion.
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