The temperature of the slurry has a significant impact on the fluorite ore flotation effect, especially the performance of the carboxylic acid collector. Within a certain temperature range (such as 20-35℃), increasing the slurry temperature can enhance the solubility and dispersibility of the carboxylic acid collector, thereby improving its ...
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British Fluorspar Ltd (BFL) operates a lead-fluorite-barite deposit located in the Peak Lake District (Derbyshire, UK) with fluorspar as the main product and lead and barite as by-products.
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Fluorite flotation has good effect and high concentrate recovery rate, and can obtain fluorite concentrate with high purity. During fluorite ore flotation, improving and improving the fluorite flotation effect mainly depends on flotation collectors and adjusters. The following article will introduce you to the types of collectors and adjusters …
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Among these inhibitors, CP exhibits the best selective inhibitory effect on fluorite and calcite, demonstrating the optimal beneficiation efficiency. As a result, the combined application of STPP and EDTMPS is available for the flotation separation of the three calcium-bearing minerals. 3.1.2. Actual ore flotation tests
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For different types of fluorite ore, the flotability of gangue minerals is also greatly affected by the pH value, which in turn affects the flotation separation effect of fluorite ore. For example, when oleic acid is used as a collector and the pH is 8-9.5, both fluorite and calcite have better floatability.
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Semantic Scholar extracted view of "Improving fluorite flotation from ores by dispersion processing" by Shaoxian Song et al. ... The Improvement Effect of Dispersant in Fluorite Flotation: Determination by the Analysis of XRD and FESEM-EDX. ... Flotation: Theory, Reagents and Ore Testing. R. D. Crozier. Chemistry, Materials Science. 1992;
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Carbonate‐fluorite ore is one of the main types of fluorite ores, usually in coexistence with other gangue minerals like dolomite, calcite, and others.[5, 6 ] It is difficult to separate fluorite and dolomite efficiently due to their extremely similar floatability. An effective way to improve the flotation separation of fluorite and dolomite ...
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In this paper, the particle interaction between the fine fluorite and quartz (all less than 10 μm) and its effect on the fluorite flotation were studied mainly by rheological measurements ...
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In the flotation of the fluorite ore, the collector is generally adsorbed on the surface of fluorite by interacting with calcium ions. ... (4 × 10 −4 mol/L) of citric acid can greatly improve the depression effect of sodium silicate on calcite; the recovery of calcite was only 0.9%. However, fluorite was also depressed, and the recovery rate ...
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Micro-flotation experiments indicated that the flotation recovery of fluorite is 88.72% after fluoride ion treatment, that is, approximately fourfold with respect to that without fluoride ion ...
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Hence, extensive efforts have been made over the last decades to improve the purity and recovery of fluorite in froth flotation to break the barrier. To adjust the …
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To overcome the difficulty of separating bastnaesite from fluorite through the flotation technique, the present study examined the suitability of sodium alginate (SA) as a depressant in the flotation process. The effect of SA on the flotation separation of bastnaesite and fluorite was evaluated using micro-flotation tests, zeta potential …
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The YF collector should be used in neutral pH to separate fluorite from gangue and it could also improve fluorite recovery and flotation rate. ... The effect of the products on cationic flotation of calcite and ... The article presents the research results aimed at improving the comprehensiveness of zinc-fluorite ore processing in the ...
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The effect of pulp temperature on fluorite flotation was investigated in this study with the objective of lowering pulp temperatures in fluorite flotation. The results showed that an acid-grade CaF2 concentrate could be obtained from the flotation of both ores at ambie...
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Flotation is one of the most effective beneficiation methods for separating and enriching the target minerals [5][6][7]. During mineral processing, the minerals are crushed and ground, chemicals ...
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DOI: 10.1016/j.mineng.2020.106492 Corpus ID: 219918549; Improving flotation separation of apatite from dolomite using PAMS as a novel eco-friendly depressant @article{Yang2020ImprovingFS, title={Improving flotation separation of apatite from dolomite using PAMS as a novel eco-friendly depressant}, author={Bin Yang and …
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Different dispersants were added in the dispersion process to improve the efficiency of fluorite flotation. The types and dosage of dispersant on the improvement of fluorite flotation were investigated; when the sodium polyacrylate (SPA) was used as the dispersant and its addition is 0.5%, the concentrate grade of CaF 2 increased from 90% …
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Furthermore, the micro-flotation and batch flotation results suggest that TA could effectively depress bastnaesite with a negligible effect on fluorite at low concentrations, and that TA attached ...
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Song et al. (2006) found that the dispersion processing with CMC as dispersant could effectively improve the fluorite flotation, increasing the fluorite …
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Key words: Carbonate–fluorite ore, FLOTOL-7,9 agent, flotation. Fluorite or fluorspar is in the ever-increasing demand as an important raw material in the metallurgical, chemical and other industries. In this connection the R&D activities aimed at the upgrading of the fluorite ore beneficiation processes preserve the actuality up to now.
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Fluorite, a kind of critical non-metallic minerals, is the primary source of industrial fluorine. Sodium oleate (SO) is commonly used as the collector of fluorite ores. However, because of its some features (such as the low solubility, high solidifying point, and poor dispersion of SO) at low temperatures, it profoundly inhibits its collecting ability as …
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Improving fluorite flotation from ores by dispersion At 1 kg/ton CMC addition, the increment of the CaF 2 grade was about 07%, and that of the recovery was about 4%, suggesting that CMC is a good dispersant for improving the fluorite flotation Download : Download fullsize image; Fig 6 Effect of CMC Improving Fluorite Ore Flotation Effect …
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Flotation tests were performed on a skarn ore to attain the selective separation of scheelite (CaWO 4 ) from fluorite, apatite, and silicates. Fluorite and apatite constitute common gangue ...
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Semantic Scholar extracted view of "Surface chemistry investigation of froth flotation products of lead-zinc sulfide ore using ToF-SIMS and multivariate analysis" by Hao Lai et al. ... As a common depressant of calcite and fluorite, sodium silicate presents the disadvantages of large dosage and incomplete depression effect. Improving the ...
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Through the flotation process of primary roughing, primary sweeping and four-stage selection of fluorite ore, a qualified fluorite concentrate with CaF 2 grade of 95.52% and recovery of 91.20% was ...
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: In this study, the polyacrylic acid (PAA) was studied as a selective depressant for calcite in the selective flotation of fluorite and calcite, and the implications of this process for the separation of fluorite ore were studied using micro-flotation tests, and the results were analyzed with Fourier transform infrared spectroscopy (FT-IR) and …
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At 1 kg/ton CMC addition, the increment of the CaF 2 grade was about 0.7%, and that of the recovery was about 4%, suggesting that CMC is a good dispersant for …
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The fluorite and calcite samples used in the tests were natural mineral crystals collected from Hunan, China. The mineral crystals were burst, picked, crushed, ground, and screened through standard sieves of 0.074 mm and 0.037 mm. Samples with a particle size of 0.037–0.074 mm were used for the flotation tests and analyses.
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Fluorite is easily affected by the slime coating of fine barite during the froth flotation separation. In this work, the water glass (WG) was utilized as a dispersant to improve the flotation ...
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