In this paper we present the characterization of a tailings dam in southern Chile by means of mineralogical and geochemical investigations, …
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Spain has a long mining tradition dating from pre-historic times up to the present day. The cessation of mining activity has generated a large amount of mine wastes, most of which represent geochemical hazards. Mine tailings are watery sludge composed of medium-to-fine-grained material, resulting from grinding and mineral processing (e.g., galena, pyrite, …
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The zinc extraction from Kooshk lead–zinc tailing dam's sample was investigated by bioleaching method. The Kooshk lead–zinc deposit/mine is located in Yazd province, Iran, and its tailing dam contains about 3.64% zinc, 0.97% lead and 24.18% iron. ... Testing the ability of a low grade sphalerite tailing to achieve autothermality during ...
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Figure 1 a offers a broad overview of the heterogeneous nature of the slag tailing sample. Figure 1 b zooms in to reveal particles with angular and irregular ... sulfides (galena, sphalerite, arsenopyrite, and chalcopyrite) are consistently observed in minor quantities within the selected slag tailing, aligning with findings from other ...
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(a) Digital photograph of the galena sample magnified 100 times; (b–d) images of Pb +, Zn +, and Fe +, respectively.. Figure 3 shows the ion images of the mixed samples after separate grinding of galena and sphalerite. Partial galena and sphalerite particles can be distinguished by observing Figure 3a, in which some silver-gray and reflective particles are galena, while some light brown ...
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It oxidized the residual cyanide in cyanidation tailing pulp from 0.37 g/t to 0.14 g/t under test conditions, leading to easier flotation of chalcopyrite and galena than sphalerite and pyrite. (2) The obtaining Cu–Pb concentrate became much harder to separate than the original as a result of the residual reagents.
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The processing of base-metal ores results in the production of vast quantities of finely ground tailings, which are deposited in large surface facilities and may contain residual sulfides (Benzaazoua et al., 2004).The quantity of these tailings generated is globally estimated to be in the billions of tons per year worldwide (Aubertin et al., 2016, Bussière et al., 2004, …
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A. ferrooxidans, isolated from native province of lead-zinc tailing, was used to leach Zn from sphalerite by Lei et al. [12]. During 25 days of leaching, they observed 70% of highest leaching at ...
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The sample tailing comprising sul ... (AMD) generation through the oxidation of sulfide minerals, including pyrite, sphalerite, arsenopyrite, chalcopyrite, galena. The flotation results confirmed ...
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DOI: 10.1016/J.JHAZMAT.2019.120946 Corpus ID: 201225740; Recovery of sphalerite from a high zinc grade tailing. @article{Bagheri2020RecoveryOS, title={Recovery of sphalerite from a high zinc grade tailing.}, author={Behnam Bagheri and Javad Vazifeh Mehrabani and Saeed Farrokhpay}, journal={Journal of hazardous materials}, year={2020}, volume={381}, pages={ …
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Sphalerite tailings are the most important type of waste in the mining district of Sardinia. This situation justifies the interest in the applicability of flotation as a remediation …
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Sphalerite tailings are the most important type of waste in the mining district of Sardinia. This situation justifies the interest in the applicability of flotation as a remediation technique by ...
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The predominant mineral identified in the mine tailing samples was quartz, accompanied by lesser quantities of illite and chlorite, and trace amounts of feldspar, gypsum, galena, and sphalerite. Tailing samples were homogenized, sieved to 2 mm, and characterized before storing at room temperature.
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Bioleaching of sphalerite sample from Kooshk lead−zinc tailing dam ... Abstract: The zinc extraction from Kooshk lead−zinc tailing dam's sample was investigated by bioleaching method. The Kooshk lead−zinc deposit/mine is located in Yazd province, Iran, and its tailing dam contains about 3.64% zinc, 0.97% lead and 24.18% iron. ...
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Sphalerite (left), chalcopyrite (center), and galena (right) association with other minerals A: Neves Corvo tailing sample, B: oversize wet sieving, and C: undersize wet sieving M i n e r a l a s s o c i a t i o n = % m i n e r a l s u r f a c e 100-% f r e e s u r f a c e ∗ 100
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Chemical compositions of the sample are presented in Table 1. The X-ray diffraction analysis showed that quartz was the dominate mineral in sample, and chlorite, along with sphalerite as the minor phases. Table 1. Chemical compositions of the tailings Zn Fe Pb Cu SiO 2 2.27 14.92 0.95 0.04 44.54 Al 2O 3 CaO MgO MnO SO 3
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Shake flask bioleaching of original polymetallic sphalerite ore from the Freiberg mining district (400 mg/kg indium) showed maximum zinc and indium recovery rates of almost …
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2.1 Description of sampling sites The sampling site is a tailing dump of an anonymous mine in Japan. The ore minerals are mainly pyrite, sphalerite, chal-copyrite and galena, accessory Mn-minerals, the gangue min-erals quartz and kaolin. The mine drainage, influenced by these mine tailings, is weakly acidic (pH 4.82) and its com-
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The final zinc concentrates, tailing X1, and tailing X2 were collected, dewatered, dried, and weighed for zinc grade analysis and recovery calculation. Afterwards, samples of zinc concentrates of two processes were used for additional sphalerite liberation analysis by MLA. ... MLA color maps of sphalerite in sample A (a) and sample D (b).
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the tailing with a grade of 62.2%. Mineralogical studies indicate that sphalerite exist in free grains enclosed into pyrite and in some cases pyrite is in sphalerite matrix [2]. Flotation process was applied to produce a sphalerite concentrate from tailings. The tailings were conditioned in a pulp with a pH of 5.3, 600g/t CuSO 4, 400g/t FeSO 4
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The sampling of the deposit took place at the "old tailing"-district, which has been inactive for about 40 years. Profile B1 was divided into two geological separated horizons (J and H).
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In this work, the flotation recovery of sphalerite and pyrite from an old high zinc grade tailing was studied. In particular, the effect of different flotation reagents such as …
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Mine tailing sample Zink contains mica minerals, microcline, quartz, dolomite and sphalerite. The amount of the zinc sulphide mineral sphalerite and the zinc concentration are important to study to clarify whether the material is environmentally safe for cement substitution.
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Download scientific diagram | -XRD analysis of the sphalerite sample: (1) sphalerite, (2) galena and (3) quartz. from publication: Recycling Process Water in Complex Sulfide Ore Flotation: Effect ...
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DOI: 10.1016/S1003-6326(13)62927-1 Corpus ID: 55986704; Bioleaching of sphalerite sample from Kooshk lead–zinc tailing dam @article{Mehrabani2013BioleachingOS, title={Bioleaching of sphalerite sample from Kooshk lead–zinc tailing dam}, author={Javad Vazifeh Mehrabani and Sied Ziaedin Shafaei and M. Noaparast and Seyyed Mohammad Mousavi and Majid Rajaei}, …
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In this work, the flotation recovery of sphalerite and pyrite from an old high zinc grade tailing was studied. In particular, the effect of different flotation reagents such as collector, auxiliary collector, depressant, activators, and frother on the flotation performance were investigated. The syn …
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The aim of this study was the assessment of the environmental behavior of zinc and lead caused by the weathering of sulfide-bearing mine tailings. Especially, we address in …
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In this work, the flotation recovery of sphalerite and pyrite from an old high zinc grade tailing was studied. In particular, the effect of different flotation reagents such as collector ...
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Zinc and lead are present as sphalerite, galena, carbonates, sulfates and Zn- and Pb-bearing oxides. Iron occurs in sulfides ... Each sample was the results of mix and homogenized three subsamples random distributed from each sampling location. Soils/tailing waste samples were analyzed for their geochemical characterization in order to evaluate ...
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Aiming to determine general mechanisms of formation of process properties in copper–pyrite ore tailings, the comprehensive analysis of mineralogical composition of tailings from three …
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The X-ray diffraction analysis showed that quartz was the dominate mineral in sample, and chlorite, along with sphalerite as the minor phases. Table 1. ... Therefore, the tailing solution was dissolved in mixture of bacteria and lasted for less than 25 d of bacterial leaching, and about 70% of Zn was extracted in the bioleaching of tailings ...
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T he early sulfide tailing dams contain large amount of use ful mineral, such as sphalerite tailing contains Corresponding author. Tel.:+86 - ; fax: +86 - 010 - 82241313.
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In this work, zinc extraction was investigated using bioleaching process. The used samples were carbon-rich preflotation tailings prepared from a lead–zinc mineral processing …
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In this paper we present the characterization of a tailings dam in southern Chile by means of mineralogical and geochemical investigations, focusing on sphalerite and trace elements with the aim to investigate a potential reprocessing.
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The sample slurry was constantly mixed with a mechanical rotator to prevent the gravitational sedimentation of the enriched ore and tailing dry matter to the bottom of the sample container. The immersion probe was fixed in the near vicinity of the rotator. ... chalcopyrite tailing, sphalerite froth, sphalerite tailing, and pyrite froth ...
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