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Stibnite ore at Wadi Abu Quraiya, situated in the central Eastern Desert of Egypt has been subjected to petrographical, mineralogical, infrared, X-ray diffraction, chemical and spectral analyses. Hydrometallurgical treatment based on leaching with
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In HCl solution, antimony is dissolved in the form of SbCl 3 by adding oxidizing agents such as Cl 2, FeCl 3, SbCl 5, or H 2 O 2 (Zhao, 1987). Methods for the recovery of antimony from the SbCl 3 leaching solution include hydrolysis, replacement, distillation, and electrowinning. Although the foregoing methods afford high antimony …
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This paper presents the laboratory latest results to recover antimony as cathode from hydrochloric industrial eluate electrolytes from IX process at 300 A/m2, 600 L/min, room temperature and ...
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S. Ubaldini et al.r Hydrometallurgy 57 (2000) 187–199 194 Table 10 Antimony recovery, from the ore, at the best experimental conditions Ž%Sb. ... After 6 h electrolysis, high recovery of antimony Žabout …
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The methods on the recovery of antimony from SbCl 3 acidic solutions are as below : (1) Hydrolysis. Sb 3+ can be precipitated in the form of SbCl 3, SbOCl and Sb 2 …
DetailsRecovery of gold from refractory ores requires a pretreatment to liberate the gold particles from the host mineral. In particular, in the case of stibnite (Sb 2 S 3), the antimony (Sb) forms stable compounds with sodium cyanide (NaCN) during the cyanidation process; as a consequence, cyanide consumption increases.Pretreatment is usually an …
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Direct recovery of antimony can reach ~91.5% and crude antimony with the purity of 96% can be produced. About 95% of sulfur can be fixed in the form of FeS in …
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Non-toxic technology extracts more gold from ore. Study shows new chloride-based process recovers 84% of gold compared to the 64% recovered with traditional methods. Gold is one of the world's ...
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A small amount of tartaric acid was added to the solution to avoid the hydrolysis of antimony and tin in the mineral. The solution was boiled for about 30 min to dissolve the sulphates of iron and non-ferrous metals completely. The insoluble residue was filtered and washed well with 1% H2SO4 solution. 2.4.
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Main parameters studied were: Na 2 S concentration, NaOH concentration, pulp density and temperature. After leaching, antimony has been recovered by electrodeposition, in order to increase the economical convenience of …
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This study investigated the leaching and electrowinning of antimony from a complex, high arsenic and gold-containing stibnite concentrate ore (As-Au-Sb ore) using …
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DOI: 10.1016/J.HYDROMET.2019.04.026 Corpus ID: 150110101; Extracting antimony from high arsenic and gold-containing stibnite ore using slurry electrolysis @article{Yonglu2019ExtractingAF, title={Extracting antimony from high arsenic and gold-containing stibnite ore using slurry electrolysis}, author={Zhang Yonglu and Chengya …
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DOI: 10.1016/S0304-386X(00)00107-9 Corpus ID: 98163036; Process flow-sheet for gold and antimony recovery from stibnite @article{Ubaldini2000ProcessFF, title={Process flow-sheet for gold and antimony recovery from stibnite}, author={Stefano Ubaldini and Franc Vegli{`o} and Pietro Fornari and Carlo Abbruzzese}, …
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Today, one of the major difficulties confronted during copper metallurgy is the elimination of antimony and arsenic impurities from the process. This is because the pure copper ore reserves are becoming exhausted and the resources of unexploited ores often contain relatively high amounts of antimony and arsenic. During smelting of copper …
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In order to overcome this problem, Yang et al. utilized the sodium sulfide to extract the antimony from refractory gold ore, and the leaching recoveries of antimony and arsenic were 96.64% and 0. ...
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pyrometallurgy has the shortages of lower recovery of antimony and lead, higher energy loss, and serious pollution of SO 2 ... used anode oxidation during electrolysis to leach sulfide ore. It ...
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Development of a Two-Stage Hydrometallurgical Process for Gold–Antimony Concentrate Treatment from the Olimpiadinskoe Deposit. An integrated two-stage metallurgical process has been developed to process concentrates from the Olimpiadinskoe deposit, which contain high levels of antimony and arsenic.
DetailsAntimony -gold ore is one of the antimony resource in China, whose proved reserve is up to 1000 tons [1, 2]. The commercial route to extraction antimony from the antimony -gold ore to further separating antimony and gold involves alkaline leaching—electrowinning process [3,4,5,6]. In this process, the ore is leached in sodium …
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This study investigated the leaching and electrowinning of antimony from a complex, high arsenic and gold-containing stibnite concentrate ore (As-Au-Sb ore) using slurry electrolysis (SE).
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DOI: 10.1016/J.CHERD.2020.09.029 Corpus ID: 224863309; Leaching Kinetics of Antimony from Refractory Gold Ore in Alkaline Sodium Sulfide under Ultrasound @article{Hu2020LeachingKO, title={Leaching Kinetics of Antimony from Refractory Gold Ore in Alkaline Sodium Sulfide under Ultrasound}, author={Yuting Hu and Ping Guo and …
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This is because the pure copper ore reserves are becoming exhausted and the resources of unexploited ores often contain relatively high amounts of antimony and arsenic. During smelting of copper concentrates, arsenic is easily removed into the offgas while antimony is not readily removed due to its lower partial pressure and high affinity for ...
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This study proposes a two-stage method for the efficient and thorough extraction of antimony through direct electrolysis from sulfide concentrate in molten salt. Our focus …
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(1) Hand selection The hand selection process of antimony ore is carried out by utilizing the differences in color, luster and shape between antimony-containing mineral deposits and gangue in antimony ore. Although this method is primitive and labor-intensive, it still has special significance when used in antimony ore beneficiation.
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Semantic Scholar extracted view of "A hydrometallurgical process for the separation and recovery of antimony" by Yang Jianguang et al. ... The application of slurry electrolysis for high-arsenic antimony–gold concentrate ... the feasibility, mechanism and process characteristic of treating low-grade antimony ore by bath smelting-continuous ...
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This paper reviews the state-of-the-art technologies for the antimony separation and recovery from refractory ores and metallurgical residues. The advantages and limitations of these technologies are discussed with respect to antimony recovery …
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The solution obtained from leaching with antimony trichloride is subjected to membrane electrolysis or iron replacement to produce metallic antimony or antimony xide. Pyrometallurgical ...
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This paper outlines the hydrometallurgical processing and the various possible approaches for the recovery of metallic antimony from its antimonite sulphide ore by electrolysis.
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Antimony has a negative effect on the gold extraction from antimony–gold concentrate, and it is necessary to remove antimony in advance. For a high calcium low antimony–gold concentrate (Ca–Sb–Au ore), this study proposed to pre-remove antimony using slurry electrolysis in HCl–CaCl 2 system. The results indicated that the optimal …
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A complete technological process for extracting antimony from refractory gold ore was proposed. • Antimony can be selectively removed from refractory gold ore by …
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This paper focuses on the environmental leaching of antimony, a critical mineral, using deep eutectic solvents. Mining residues often contain embedded antimony, posing environmental risks. Deep eutectic solvents, known for being low in toxicity, cost-effective, and environmentally friendly, present a promising avenue for sustainable …
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This study investigated the leaching and electrowinning of antimony from a complex, high arsenic and gold-containing stibnite concentrate ore (As-Au-Sb ore) using slurry electrolysis (SE). The results indicated that the leaching efficiency of antimony was higher than 98%, and those of iron and arsenic were about 5.50% and …
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