Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb2O3) which is processed into antimony metal and antimony oxide (Sb2O3). The industrial importance of antimony is mainly derived from its use as flame …
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The primary objective of this study is to experimentally validate the efficacy of DESs in extracting antimony from the flotation waste derived from the tailings pond at Čučma. …
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In this paper, one of the main objectives was to verify the potential of using the agitated Reflux Classifier to preconcentrate the antimony oxide tailings. Firstly, the Sb grade, recovery of the concentrate as well as tailings rate (discarding rate), were investigated to evaluate the performance of the separation. Then, a set of comparative ...
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In this work, electrodeposition is employed to recover the antimony present in a secondary waste effluent of the copper electrorefining that is highly concentrated in hydrochloric acid.
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Tailings containing 0.2 to 1.0 pound of IHg per ton are not uncommon. High-grade concentrates, amenable to reduction by retorting or roasting, usually are obtained. ... selective recovery of mercury and antimony rather than toward detailed study of any one method. To this end, preliminary studies were made of mineral dressing, furnace
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NaOH is a powerful tool for gold extraction from refractory tailings. Keywords. gold recovery, refractory calcine tailings, ultrafine grinding, alkaline pre-treatment, microwave. Introduction. South Africa has over 500 gold tailings dumps, several of which have the potential to be profitably . reprocessed (Janse van Rensburg, 2016).
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The mercury and antimony in the antimony tailings are effectively recovered, and the tailings are recycled, which solves the difficulty of the tailings reuse. The secondary resourceization of antimony tailings is mainly through flotation, re-election, leaching, and …
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Cleaner recovery of multiple valuable metals from cyanide tailings via chlorination roasting Hailin Long, Haoyu Li, Jiannan Pei, C. Srinivasakannan, Shaohua Yin, Libo Zhang, Aiyuan Ma ...
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In order to recover antimony from tailings, gravity separation and flotation methods were applied. Different flotation flowsheets were performed for considering the number of
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A novel process for comprehensive recovery of arsenic and antimony from arsenic-rich copper smelter dust was achieved by hydrochloric acid leaching, reduction recovery of arsenic by sodium hypophosphate and recovery of SbCl 3 by continuous distillation. The leaching efficiency of As and Sb was over 97.5% and 96.8% under suitable conditions of ...
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At 25 °C, 40 mg of iron powder was found to reduce all antimony ions (i.e., approx. 99% recovery), but even when 100 mg of Al and Sn cementators were used, the antimony recovery did not reach .
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Direct cyanidation of tailings material as-received (P 80 -53 μm) and after ultrafine grinding (P 80 -16 μm) Figure 7-Gold recovery by cyanidation of NaOH pre-leached residues
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Depending on the mined ore and the process used, it may be possible to recover valuable elements from mine tailings, among them critical raw materials (CRMs) like rare …
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Recovery of Antimony from tailings in Stibium Mopani Mine, South Africa. Core carried out testwork and flowsheet development to recover antimony via the ASL process from low-grade stockpiled antimony containing tailings. This work included upgrading via flotation and classification, leach testwork and precipitation testwork to generate saleable ...
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Developing cost-effective, efficient and environmentally friendly recovery process for gold tailings is imperative for environmental protection and resource recycling. In this paper, we developed ...
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The antimony concentrations in the solution and the solid residue after leaching in a mixture of choline chloride and ethylene glycol at different temperatures (60 • C, 80 • C, and 100 • C).
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The mining industry produces large volumes of mine tailings – a mix of crushed rocks and process effluents from the processing of mineral ores.Mine tailings are a major environmental issue due to implications related to their handling and storage. Depending on the mined ore and the process used, it may be possible to recover valuable elements from mine …
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A new type of reflux classifier with a trapezoidal inclined channel has been designed and used for pre-concentration of fine-grained low-grade oxidized antimony tailings. Theoretical analysis shows that the decreasing flow field in trapezoidal channels is conducive to the separation of particles with different densities. Tests were performed with − 180 + 20 μm …
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Meanwhile, the antimony dissolved in the solution is converted into the residue as the state of NaSb(OH)6 during this process. ... The gold recovery rate of the tailings through flotation was ...
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The heavy metals in tailings can likewise be utilized in other industries as a new energy source. The restoration of tailings is an important part of the modern industry as witnessed by the global upsurge (Figs. S1A–E) in their mining from the natural resources during the last fifty year (Ashish et al., 2021).
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Antimony tailings ponding is an important derivative of antimony ore smelting, and a major contributor to the recovery of the large quantity of slag generated during the mining of antimony deposits (Chen et al., 2022).Sb and its related metals (Pb, Cd, etc.) in antimony tailings cause the concentration of PTEs in the tailings pond to rise to toxic levels, making the tailings …
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Recovery of Antimony Tailings Resources For the antimony tailings with high grade of valuable metals, the main treatment method is to recover the high-grade metals.
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antimony recovery process or, in the case of low antimony feed or oxide ore, direct to gold recovery circuits. Decanted water from the conditioner tank will be pumped to a reclaim water tank for reuse in the ore processing facility. Legacy tailings that are excavated from below the SODA area will be mixed
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Leaching. The slag used in this work was obtained after the process of recovery of tin from tailings from Penouta mine deposit. The slag was ground in a ball mill to reach a particle size X < 90 μm. The chemical and physical characterization of the slag has been presented in a previous work. 8 A mineral concentrate obtained by the milling, gravimetric concentration, and magnetic …
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The primary objective of this study is to develop waterproof ed concrete and to immobilize and stabilize the harmful heavy metals present in antimony tailings, thereby repurposing the …
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Core carried out testwork and flowsheet development to recover antimony via the ASL process from low-grade stockpiled antimony containing tailings. This work included …
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recovery of these metals by adsorption on the active carbon. To make matters worse there was a rapid accumulation to complex cyanides in the process water recovered from the tailings dam, which caused the dissolution of gold in the qrinding and flotation circuits, reducinq the flotation recovery. Drainage from the tailings
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Antimony recovery reached 94.4% after direct reduction with coal (Liu et al., 2014). Padilla et al. (2018) ... Besides, in the case of stibnite concentrate or tailings from flotation process, the effect of reagent on the microorganism during bioleaching can be also investigated to which process modifications will allow improving the overall ...
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Palden, T.; Machiels, L.; Regadío, M.; Binnemans, K. Antimony recovery from lead-rich dross of lead smelter and conversion into antimony oxide chloride (Sb 4 O 5 Cl ... for the financial support (SBO-SMART: Sustainable Metal Extraction from Tailings) with grant no. HBC.2016.0456. The authors also wish to acknowledge funding from European ...
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DOI: 10.1021/ACSSUSCHEMENG.0C09073 Corpus ID: 233519653; Antimony Recovery from Lead-Rich Dross of Lead Smelter and Conversion into Antimony Oxide Chloride (Sb4O5Cl2) @article{Palden2021AntimonyRF, title={Antimony Recovery from Lead-Rich Dross of Lead Smelter and Conversion into Antimony Oxide Chloride (Sb4O5Cl2)}, author={Thupten …
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