IMPACTS OF FLUORSPAR MINING ON THE PHYSICAL …
been carried out to establish environmental impacts of fluorite mining industry on topography and land cover. The objectives of the study were to; determine the trend andWeb
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been carried out to establish environmental impacts of fluorite mining industry on topography and land cover. The objectives of the study were to; determine the trend andWeb
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The samples used for the ζ potential, FTIR, and XPS tests were obtained by grounding the − 37 μm fractions to approximately 5 μm. The compositions of fluorite and barite were identified by XRD (X-ray diffraction) and further examined with single element assay (Fig. 1 and Table 1). The results indicated that the sample purities were very ...Web
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The main gangue species was fluorite with small amounts of dolomite and amphibole. ... Figure 1 and Table 2 ... The possibility of iron extraction from flotation tailing containing 21.86% iron and ...Web
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The invention discloses a beneficiation method for multi-impurity low-grade refractory fluorite tailings, which comprises the following steps: a. making the tailing ore into ore pulp with the fineness of-200 meshes accounting for more than 90 percent; b. roughing is carried out at normal temperature to obtain rough concentrate with fluorite grade of 60%; c. one …Web
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2.1 Study Site. The plant and soil samples analyzed in this study were collected from a decommissioned and revegetated tailing storage site within the concession area of Damang Gold Mine in south …Web
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Fluorite ore resources are widely distributed in South Africa, Mexico and China, and their total reserves exceed 240 million tons [1]. Fluorite tailing is a typical industrial solid waste generated during the fluorite ore flotation process and is mainly composed of CaO, SiO 2, Al 2 O 3 and CaF 2. The inappropriate disposal of fluorite …Web
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Fluorite tailing 72.00 7.64 0.13 5.34 1.04 0.30 2.58 0.07 7.83 The XRD patterns of the blast furnace slag and fluorite tailing are shown in Figure 1 . As typical water-quenched slag, there are no ...Web
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This paper reviews the achievements of many scholars, introduces the reserves, distribution and characteristics of fluorite resources and rare earth associated …Web
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Fluorite flotation tests were carried out with the actual and new schemes. Fig. 2 showed the photographs of the tailing slurries after being settled for 96 h from the flotation test with the actual scheme and being settled for 2 h from the test with the new scheme. With the actual scheme (Fig. 2 a), 96 h of sedimentation did not produce clarified water in …Web
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At the same time, the actual flotation tests on fluorite-quartz ore showed that the grade of fluorite can increase from 19.26% to 25.99% with increasi ng the WG modulus from 1.0 to 3.5 in the absenceWeb
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Remaining fluorite (CaF 2) ... (LIMS tailing). The research focuses on investigating the impact of affecting parameters such as roasting temperature, magnetic field strength, slurry flow rate, and slurry concentration on the separation efficiency of iron and rare earth. ... Furthermore, This can be seen from Tables 4 and 5 that the REO and Sc 2 ...Web
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The chemical analysis results of scheelite, calcite, and fluorite are presented in Table 1, and their purity are 96.08%, 98.36%, and 99.31%, respectively. The X-ray diffraction (XRD, Rigaku D/max 2500, ... The concentrate and tailing products were filtrated, dried, and weighed to calculate the recovery using the Eq. ...Web
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Blast furnace slag and fluorite tailings were vitrified into fluorapatite based glass-ceramics. • The addition of fluorite tailings will bring the enhancement of …Web
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Critical metals and minerals in Yxsjöberg tailings include tungsten and fluorite. ... (2019). For this paper, three sampling locations (1_1, 1_2 and 6) were investigated in more detail (Table 1). Table 1. Information about sampling locations. Sampling location ... In order to characterize the tailing samples physically (moisture content ...Web
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The addition of ferrous sulfate as a depressant for Ca-bearing minerals such as calcite and fluorite during scheelite flotation was investigated to recover scheelite from tungsten mine tailings, using Hallimond-tube flotation tests, zeta-potential measurement and Fourier-transform infrared (FT-IR) analyses. The flotation tests indicate that the …Web
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The selective separation of scheelite from fluorite is difficult because of their similar surface properties. In this study, diethylenetriaminepentaacetic acid (DTPA) was used as a novel depressant for the efficient removal of fluorite from scheelite, and its depression effect and mechanism were systematically investigated by conducting micro …Web
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A novel flocculation strategy for fluorite tailings was studied. • Fine montmorillonite particles are the key reason for the turbidity. • The synergistic effect of …Web
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Fluorite tailings (FT) is an industrial waste generated from the flotation process of fluorite ore. The improper disposal would cause potential metallic and …Web
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4) and fluorite (CaF 2), which can be removed by grinding and reverse flotation fluorite to obtain a high-grade iron concentrate. The REO grade of magnetic separation tailings is 11.98 %, and its recovery rate is 97.96 %. Consequently, rare earth can be effectively extracted and separated after the subsequent flotation-leaching process ...Web
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Contribute to yeahliangyy/ru development by creating an account on GitHub.Web
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The pH was adjusted with NaOH or HCl stock solutions. Deionised water was used throughout the flotation experiments of the pure materials. Tables 1 and 2 summarise the contents of the ore and phases of tungsten minerals found in Shizhuyuan Mine. The tungsten minerals are scheelite and wolframite, which are associated with garnet, …Web
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The development and utilization of associated fluorite resources can effectively alleviate the problems of low grade and insufficient reserves of single fluorite deposit. Fluorite is widely ...Web
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Diopside-based glass-ceramics are successfully produced by recycling blast furnace slag and fluorite tailing with the addition of supplementary elements such as TiO2, Fe2O3 and Cr2O3 as nucleation ...Web
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Mineral liberation by free surface of xenotime in cleaner circuit (A) tailing and scavenger tailing. X-axis indicate liberation classes in 10% steps, e.g <10% means: particles with 0-10% of ...Web
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The tailing area covers 11.5 km2, with 150 million tonnes of tailings, of which approximately 9.3 million tonnes are REE tailings. [5] About 90% of the mined deposit was stored in the Weikuang tailing dam owned by the Baotou Iron and Steel Group (Baogang Group), 12 km away from Baotou city where about 2.65 million people live and 5km from ...Web
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PDF | On Nov 30, 2020, Limin Zhang and others published Cassiterite recovery from a sulfide ore flotation tailing by combined gravity and flotation separations | Find, read and cite all the ...Web
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Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application ...Web
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The main component in fluorite tailings and waste glass is SiO 2, with composition ranging from 70 % to 75 %. This indicates that fluorite tailings and waste …Web
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