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We هي شركة ذات تقنية عالية تدمج البحث والتطوير والإنتاج والتوزيع ، وتوفر كسارة ، وصنع الرمال ، ومعدات طحن ، ومحطة تكسير متنقلة ، إلخ.
We هي شركة ذات تقنية عالية تدمج البحث والتطوير والإنتاج والتوزيع ، وتوفر كسارة ، وصنع الرمال ، ومعدات طحن ، ومحطة تكسير متنقلة ، إلخ.
202351 A novel flocculation strategy for fluorite tailings was studied. • Fine montmorillonite particles are the key reason for the turbidity. • The synergistic effect of cationic coagulant and anionic flocculant is significant. • Flocculation mechanism involves احصل على السعر
202161 The achievements and problems in the development and utilization of associated fluorite resources in rare earth tailings are also summarized, and some احصل على السعر
2021111 In order to clarify the supernatant of fluorite tailings slurry, the combination of cationic coagulant and anionic flocculant was proposed to increase the sedimentation احصل على السعر
2021215 Geopolymerization is a promising technique for mine tailings disposal. • Lower strength was noticed using mine tailings as a single precursor. • Pretreatment احصل على السعر
20221225 Flotation tailings of a polymetallic mine in Inner Mongolia contain fluorite resources. Due to the influence of the tungsten-tin flotation reagent and the ore احصل على السعر
202171 The modal mineralogy ( Fig. 15) shows that both critical minerals (scheelite and fluorite) and minerals of environmental concern (pyrite and pyrrhotite) are present in احصل على السعر
202141 • Synergistic effect of collectors and depressants in fluorite flotation is elaborated. Fluorite, as a scarce nonrenewable strategic non-metallic mineral resource, احصل على السعر
In order to improve the utilization rate of a copper-tin mine, The fluorite resources in floating copper-sulfur-removal-magnet-tin tailings were reselected.Sodium carbonate was used احصل على السعر
fluorite ores of Primorye Krai using a highly selective combination of reagents The study of the composition and preparability of two samples of tailings dumped at the Yaroslavl احصل على السعر
2020916 Tailings from the Osor fluorite mines release large amounts of potentially toxic elements into the environment. This work is a proposal to remove these waste احصل على السعر
202171 1. Introduction. Tailings are volumetrically one of the largest waste streams in the world covering a substantial amount of the earth's surface in the form of piles, large surface impoundments (tailings dams) and other tailings storage facilities (TSF) (Hudson-Edwards et al., 2011; Lottermoser, 2011, Lottermoser, 2010).They are generated by the احصل على السعر
2020916 Tailings from the Osor fluorite mines release large amounts of potentially toxic elements into the environment. This work is a proposal to remove these waste materials and use them as a raw material in the manufacture of glass. The chemical composition of the tailings was determined by X-ray fluorescence and the mineralogy by احصل على السعر
202337 Such minerals are often mentioned as REE-containing minerals (e.g., apatite and fluorite) . In order to evaluate the actual impact of the mine tailings on natural soils around them, different samples were collected from Unit S1 and Unit S2 (6 and 7 samples, respectively) at surface (0–15 cm depth) and subsurface (15–30 cm depth).احصل على السعر
20221216 This study aimed to investigate the potential of enrichment of rare-earth-bearing minerals in historic mine tailing using the froth flotation process. Characterization studies indicated that tailings contained 11,000 ppm of rare earth elements (REEs). The major mineral in the tailings was apatite at ~84%, which was associated with iron oxides احصل على السعر
2021215 Some mine tailings also have reuse and recycling potentials: clay-rich tailings can be utilized for the production of bricks, cements, sanitary wares, and porcelain; Mn-rich tailings might be used to produce construction materials, glass, ceramics, and coatings; bauxite-containing tailings could serve as Al sources; iron ore tailings mixed احصل على السعر
2021917 Mine tailings host dynamic biogeochemical processes that can mobilize a range of elements from the host material and release them into the environment through acidic, neutral, or alkaline mine drainage. Here we use a combination of mineralogical, geochemical, and microbiological techniques that provide a better understanding of احصل على السعر
2022114 Corporation mine at the southern end of the Broken Hill Line of Lode have potentially significant resources of fluorite. These tailings contain up to 3% fluorite, which was a common gangue mineral in the lead–zinc ore. Attempts in the early 1960s to extract fluorite from the tailings on a commercial basis were unsuccessful (MacNevinDaاحصل على السعر
The rapid depletion of high-grade rare earth elements (REE) resources implies that future supplies may be augmented with low-grade ores, tailings, and other unconventional resources to meet cut-off grades and, subsequently, supply demands. This stone presents an amalgamation of studies conducted on selected complex low-grade iron-oxide-silicate احصل على السعر
2018111 The use of IOT as pigment is technically feasible. In order to minimise the environmental, social and economic impacts caused by the mining activity, this work proposes the use of iron ore tailings from tailings dams (IOT) as pigment in the production of a paint for buildings the Sustainable Paint. The waste originates from the miningاحصل على السعر
2022430 5. Tailings management within the circular economy in mining. In this chapter, the possibilities to manage the mine tailings with reduce, reprocessing, upcycle, downcycle and disposal strategies are discussed. In the subchapter 5.2, an inventory of the metal content of mine tailings in Finland is presented. 5.1.احصل على السعر
2019121 In the second half of the 20th century, fluorite mining made a significant visual impact on the whole area, whereas waste discharge from fluorite mineral processing in the zone reached the shoreline through rivers due to the absence of strict environmental controls ( Gutiérrez Claverol, 2009 ). 2.3.احصل على السعر
2020817 Tailings from the Osor fluorite mines release large amounts of potentially toxic elements into the environment. This work is a proposal to remove these waste materials and use them as a rawاحصل على السعر
202141 However, sulfuric acid has been used to activate fluorite in the tailings of Shizhuyuan mine, China [144]. Gao et al. [147] found that the addition of acid can reduce the recovery of calcite, which may be due to the newly exposed surface generated by dissolution, causing the collector desorption, which can be replaced by the depressant. 7.احصل على السعر
2017221 Gold mining is a major source of metal and metalloid emissions into the environment. Studies were carried out in Krugersdorp, South Africa, to evaluate the ecological and human health risks associated with exposure to metals and metalloids in mine tailings contaminated soils. Concentrations of arsenic (As), cadmium (Cd), احصل على السعر
20221017 The aim of this study was to develop a comprehensive technology for the utilization of tailings from quartz vein-hosted gold deposits. We investigated the recovery potential and separation process for gold, feldspar, and quartz from tailings samples collected from the Jinqu gold mine in Henan province, China. The sequence of the احصل على السعر
2021124 3.1.1 Group 1 mining and beneficiation as a single stage. Most of the studies considered beneficiation altogether with the mining operation. For example, Awuah-Offei and Adekpedjou carried out a review scrutinising the very first LCAs applied to the mining sector.This work is focused on the extraction stage, and it mentions the احصل على السعر
2021625 AO Shunfu. Research Progress of Comprehensive Utilization of Nonferrous Metals Mine Tailings[J]. Conservation and Utilization of Mineral Resources, 2021, 41(3): 94-103. doi: 10.13779/jki.issn1001-0076.2021.03.014احصل على السعر
20221021 An alternative process to obtain a high degree of dewatering tailings that produces a high-density product is presented in this article. This technology involves the combination of tailings particle grain size classification by hydrocyclones (HC) and tailings dewatering by horizontal vibratory screens (HVS). It makes it possible to dewater tailings احصل على السعر
2022115 Characteristics such as copper recovery, bacteria concentration and pH value were shown in Fig. 1 during bioleaching processes. According to Fig. 1 (a), copper recovery in samples T2-0 to T5-0 where tailings were added at intervals was 3.27%, 3.08%, 2.87% and 1.96%, respectively. Oxidation of Fe 2+ and S 2− related to bacterial احصل على السعر
2013), the ores available for mining contained no more than 26-29% CaF2. In this case, the content of calcite, which significantly complicates the technological process during flotation concentration, was 20-28% [1]. 2 Materials and research methods The content of fluorite in the tailings stored in the tailings dump of the enterprise accordingاحصل على السعر
