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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The separation of magnesite from dolomite was studied by flotation tests, X-ray photoelectron spectroscopy (XPS), and zeta potential measurements in the presence of calcium ion (Ca2+) dissolved from dolomite. Sodium oleate (NaOL) was used as collector, and sodium carbonate (Na2CO3) and sodium hexametaphosphate (SH) …
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Mechanism analysis shows that the adsorptive capacity of calcium lignosulfonate on dolomite is higher than that of apatite, which is due to the strong reaction between …
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The results are shown in Figure 4. A range of flotation results indicate that the optimum mass ratio of sodium silicate to zinc sulfate to reach the best flotation …
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Micro-flotation experiments were carried out in an XFG flotation machine (Jilin Exploration Machinery Factory, Changchun, China) equipped with a 40 mL plexiglass cell and an impeller speed of 1704 rpm. ... 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 ...
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Micro-flotation experiments were carried out in an XFG flotation machine (Exploring machinery Plant, Changchun, China) equipped with a 40-mL cell at 2000 rpm agitation speed. For single mineral tests, 2.0 g of pure mineral was placed in the flotation cell with 35 mL deionized water and then conditioned for 1 min. NaPP and NaOL were …
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Dolomite Mobile Flotation Machine.Dolomite flotationin india .portable dolomite flotation cell suppliers Dolomite Rock Dolomite Rock Suppliersand Manufacturers at A wide variety ofdolomite rock optionsare available to you such asjaw crusher crusher stone machine in mining.
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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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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 …
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The effects of Ca2+, Mg2+, Al3+, and Fe3+ on the flotation behaviors of apatite, dolomite and quartz were investigated through a micro-flotation test, and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study, zeta potential measurement, and X-ray photoelectron …
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A series of initial experiments carried out with magnesite, quartz and dolomite as a single mineral indicated that separation of magnesite from quartz and dolomite can be better at pH 8.0 (Liu et al., 2018, Liu et al., 2019;) and DDA 30 mg/L (Sun et al., 2021., Yao et al., 2016).Therefore, the flotation tests were performed to observe the floatability of …
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Jaw Crusher. 【Capacity】 1-1120tph. 【Feeding Size】 <1200mm. 【Output Size】 10-360mm. 【Crushing Materials】Granite, dolomite, river pebbles, quartz, calcite, and other materials. 【Application】 Jaw crushers are mainly used at the primary stage to reduce hard and brittle material size for the next crushing stages, widely applied ...
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The natural wettability of apatite and dolomite and the effect of sulfuric acid (H2SO4) and sodium oleate (NaOl) on the floatability and wettability of both minerals were studied using single-mineral flotation and contact angle measurement. The flotation experiments demonstrated that adding NaOl, apatite, and dolomite had good floatability. …
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At room temperature (25 ± 2 ℃), we conducted micro-flotation experiments for quartz, dolomite, and collophanite using an XFG-Ⅱ machine (Wuhan Exploring Machinery Factory, China) with a 100 mL micro-flotation cell and 1700 rpm impeller speed. Firstly, 3 g mineral sample and 50 mL deionized water were added to the cell and stirred …
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Micro flotation tests were conducted in a XFGC flotation machine (Jilin Exploration Machinery Plant, China) with a 40 mL cell. 2.0 g of samples were weighed and placed in the flotation cell, 40 mL of deionized water was added and stirred for 1 min, then 0.1 mol·L −1 H 2 SO 4 or H 3 PO 4 solution was added to adjust the pH value of the pulp ...
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Dolomite processing description from its geology mineral property to how to extract mineral from rock and placer deposit, related processing plant flow chart and …
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We also provide mobile dolomite milling equipment for flexible application. It's fully flexibility makes it excellent and convenient to move on the working site. It saves working …
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The PDOS results correspond well with the flotation tests, further validating the prediction by the coordination model of flotation, and provide favorable evidence for …
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The flotation was tested in the XFG II5 – 35 flotation machine (Jilin Exploration machinery plant, China) with a 40 mL flotation cell. The flotation was conducted around 25 °C with the agitator speed of 2000 rpm. ... which is expected to improve the separation of magnesite and dolomite in flotation. 3.1.2. Separation …
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XFG II mechanical agitation flotation machine equipped with a 40-mL detachable flotation cell was used to perform the microflotation experiment of dolomite and brucite. The flotation machine speed was set to 1602 rpm before each experiment and then 2.0 g of the mineral samples and 32 mL of deionized water were introduced into the …
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An XFG II5 laboratory flotation machine with a 40 mL flotation cell was used for the micro-flotation tests. The room temperature was 20 °C and the stirring speed was 1992 rpm. ... In this work, an ion-tolerance collector AESNa was used to improve the flotation for magnesite from dolomite. Flotation tests, surface analyses, and DFT …
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An XFG II5 laboratory flotation machine with a 40 mL flotation cell was used for flotation tests. The room temperature was 20 °C and the stirring speed was 1992 rpm. In flotation tests, a 2.0 g sample and 30 mL of deionized water were used. ... monazite and dolomite flotation using benzohydroxamate collector. Colloids Surf., A, 539 (2018), pp ...
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The difference between the dolomite recovery (49.00 %) and magnesite recovery (5.00 %) was smaller when DDA was used than when other collectors were used [13]. Magnesite and dolomite are sparingly water-soluble carbonate minerals. In flotation tests of individual minerals, magnesite and dolomite show marked differences in …
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Micro-flotation experiments were carried out in an XFG flotation machine (Exploring machinery Plant, Changchun, China) equipped with a 40-mL cell at 2000 rpm agitation speed. For single mineral
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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 alongside smithsonite due to their highly similar surface properties. The present study explores the potential of 2-(4,4-dimethylpentan-2-yl)-5,7,7-trimethyloctanoic acid (2 …
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The froth flotation tests were carried out using a laboratory XFG self-aeration flotation machine, which was shown in Fig. 1. The volume of the flotation cell is approximately 40 mL. ... The recovery of dolomite was 78% when single DDA was used. To improve the dolomite flotation by using the mixed collector, the molar ratio of …
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In the flotation of other minerals, Rubio,[11] Guo,[12] and other researchers[13,14] have carried out similar collector emulsifi-cation studies and have achieved acceptable flotation effects. Nevertheless, only few studies about using SPE as emulsifier in the flotation separation of fluorite and dolomite have been reported.
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The flotation time has been shorten by new machine. In addition, the recovery of silicon dioxide improved by 6% and the grade of silicon dioxide in phosphate concentrate decreased by 1.3% ...
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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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Flotation recoveries of fluorapatite (FA) and dolomite as a function of pH with 1 × 10−4 mol/L (a) oleate and (b) N -hexadecanoylglycine (C16Gly). FA and dolomite exhibited the opposite flotation behaviors when C16Gly was used as the collector. FA was efficiently floated with C16Gly at pH 5–11, with FA recoveries in excess of 80%.
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Both of the minerals could be depressed by WHL. In the process of flotation, sulfur was created besides the WHL being absorbed on the surface of the sulfur concentrate, and its recovery rate was slightly affected. Key words: flotation; dolomite; pyrite; depressor; mechanism 1. Introduction Pyrite is the main raw material for making …
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The flotation test was operated on an XFGC II flotation machine (Jilin Exploration Machinery Plant, Changchun, China), using a 40 mL cell volume. In total, 2.0 g ground ore sample with
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The micro-flotation tests were conducted in an XFG-II mechanical agitation flotation machine with 40 mL in volume and impeller speed of 1800 rpm. In each test, 2 g of single mineral samples was first conditioned using H 2 SO 4 to reach pH 5. Then, a particular amount of CaCl 2 or MgCl 2 (1 × 10 −3 to 6 × 10 −3 mol/L) was added into the ...
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This paper presents a comprehensive study on the selective flotation of a multi calcium-bearing minerals ore, focusing on the efficient removal of dolomite and …
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Large pieces of dolomite are processed by blasting or excavated for mining and then sent to the jaw crusher through a vibrating feeder for rough crushing. The semi-finished materials after crushing are between 95-300mm. Then, the semi-finished dolomite needs to undergo medium to fine-crushing production.
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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 than …
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open access. Abstract. The effects of ultrasonic treatment on the flotation behavior of magnesite and dolomite in a sodium oleate system were investigated, and …
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