Leaching Antimony From Oxide Ore
Studies of oxide leaching antimony from …
Hydrochloric acid concentration system of ozone leaching refractory gold ore is a kind of efficient and environmentally protection clean metallurgy process. Sketch of CCD when k is 3. for ...
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A Review on Pyrometallurgical Extraction of …
Antimony is classified as a critical/strategic metal. Its primary production is predominated by China via pyrometallurgical routes such as volatilization roasting—reduction smelting or direct reduction smelting. The …
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Recovery of gold from sulfide refractory gold ore: Oxidation …
Ammoniacal thiosulfate leaching of refractory oxide gold ore. International Journal of Mineral Processing (2017) ... Process flow-sheet for gold and antimony recovery from stibnite. Hydrometallurgy (2000) ... Palladium and gold leaching from magnetite ore, with concentrated chloride solutions and ozone. Hydrometallurgy (2016)
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A review of the technologies for antimony recovery from …
ABSTRACT The global reserve of antimony is gradually declining while its demand continuously grows, rendering antimony an increasingly scarce metal. Antimony has …
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PGM extraction from oxidized ores using flotation and leaching
Direct leaching of oxidic PGM ore using different acids yielded relatively low PGM extractions. Leaching in hydrochloric acid achieved extractions of 36.6% Pt and 8.8% Pd, nitric acid achieved ...
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Selective alkaline leaching of antimony from Low-grade …
1. Introduction. At present, more than 35% of China's gold resources (with a total amount of more than 1,000 tons) are difficult to be exploited and smelted, and about 700 tons …
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Environmentally Friendly Leaching of Antimony …
Alkaline leaching may be preferred in certain cases where acid leaching is not suitable due to the nature of the ore or to avoid the formation of unwanted precipitates. The reaction used for the alkaline leaching of …
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Gold Leaching from an Oxide Ore Using Thiocyanate as …
concentrate in the New England Antimony mine, New South Wales, and also from the copper concentrate in the Val d'Or ... leaching from an oxide ore. Based on a model equation from Design Expert 7 ...
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A selective process for extracting antimony from refractory gold ore
DOI: 10.1016/J.HYDROMET.2017.03.014 Corpus ID: 99624322; A selective process for extracting antimony from refractory gold ore @article{Yang2017ASP, title={A selective process for extracting antimony from refractory gold ore}, author={Tian-zu Yang and Rao Shuai and Wei-feng Liu and Duchao Zhang and Chen Lin}, journal={Hydrometallurgy}, year={2017}, …
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ANTIMONY LEACHING FROM STIBNITE AND COMPLEX ORES
To shed light on the leaching of Sb from mine wastes containing stibnite, two series of experiments were conducted. In one experiment, polished slabs of a museum-grade stibnite and a mixed-sulfide ore sample containing 28% Sb were subjected to accelerated weathering at humidity and 31-35 o C for 37-44 days. After leaching with distilled water, insoluble …
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Production of high-grade antimony oxide from smelter slag …
Although there are many studies on the production of Sb from an antimony ore in the literature, studies focused on the recovery of Sb remaining in the slag after the pyrometallurgical process …
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A review of the technologies for antimony recovery from …
This work uses a nitric acid leaching method to remove As from crude antimony xide. Arsenic oxide and antimony oxide are respectively converted to soluble H3AsO4 …
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A Selective Method for Chemical Extraction of Antimony …
Antimony leaching from tetrahedrite-bearing ores was typically carried out by using Na2S-NaOH solutions. In the current paper, the detail mechanism of antimony leaching from tetrahedrite-rich concentrate via K2S and BaS lixiviants was investigated for the first time. Sample was characterized in terms of chemical, mineralogical, and morphological properties …
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Efficient Acid Leaching of Low Carbonate Copper Oxide Ore: …
Recent focus on hydrometallurgical methods for non-sulfide copper ores prompted a study on leaching a copper oxide ore containing 2.22% Cu, 44.9% SiO2, 6.94% Al, 6.61% Fe, 6.25% Mg, 3.67% Ca, and 1.7% Na with H2SO4 for gaining insight into the behavior of impurities in the leaching process. The effects of leaching time (30–180 min), acid concentration …
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Beneficiation of antimony oxide ore: A review
Antimony oxide ore beneficiation has become one of the world's largest mineral processing conundrums. In recent years, many experimental studies dealing with antimony oxide ore have been carried out, resulting in new technical achievements. Much attention has been paid to improving the mineral processing technology of antimony oxide based on such experiments. …
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Gold Leaching from an Oxide Ore Using Thiocyanate as a …
In this study, the following leaching parameters were tested to optimize the gold recovery for the first time from an oxide ore using the response surface methodology: initial thiocyanate ...
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ANTIMONY LEACHING FROM STIBNITE AND COMPLEX ORE
To shed light on the leaching of Sb from mine wastes containing stibnite, two series of experiments were conducted. In one experiment, polished slabs of a museum-grade stibnite and a mixed-sulfide ore sample containing 28% Sb were subjected to accelerated weathering at humidity and 31-35C for 37-44 days. After leaching with distilled water, …
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Present Situation and Research Progress of …
Antimony oxide ores are mainly senarmontite and valentinite (Sb 2 O 3) . In the process of beneficiation, to achieve the monomer dissociation of antimony-containing minerals and obtain a better grade and recovery rate, …
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Antimony, a pollutant of emerging concern: A review on …
Antimony comes under group 15 of the periodic table with ground state electronic configuration [Kr]4d 10 5s 2 5p 3. 121 Sb (57.21% abundance) and 123 Sb (42.7% abundance) are the two stable isotopes of antimony. Antimony can possess different oxidation states (such as +5, +3, 0, −3 and −5), but generally found to exist in the +3 and + 5 oxidations states …
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Ultrasound-assisted HCl–NaCl leaching of lead-rich and antimony …
Meanwhile, Zhang et al. [24] studied the ultrasonic-assisted leaching of lead-rich antimony oxide slag with hydrochloric acid/sodium chloride and found that the leaching rate of ultrasonic ...
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Lead Oxide Enhances the Leaching of Gold in Cyanide Tailings
Cyanidation tailings often contain a certain amount of gold, which is difficult to recover due to the influence of associated minerals. In this article, lead oxide was used to increase leaching efficiency and decrease sodium cyanide consumption. The mechanism of lead oxide-enhanced gold leaching was studied by thermodynamic calculation, SEM and XPS …
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Selective leaching of arsenic and antimony from a …
The present work aimed to evaluate the selective leaching and precipitation processes of arsenic in oxide form, As 2 O 3, from the dust collected from ESP of a Pierce−Smith copper converter.
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A review of the technologies for antimony recovery from …
Antimony has been highlighted as a critical raw material in the EU owing to its economic significance and high supply risk. Due to the dispersed uses and low antimony …
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Antimony Toxicity
Antimony (Sb) is an elemental metalloid chemically similar to arsenic. Antimony's use dates back to Chaldean times based on artifacts found in explorations.[1] Asian and Middle Eastern countries used antimony in cosmetics; antimony was later replaced with lead due to scarcity.[2] Topical forms of antimony were used to treat herpes, leprosy, mania, and …
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Extracting antimony from high arsenic and gold-containing stibnite ore
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 Wang …
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Production of high-grade antimony oxide from smelter slag via leaching
Although there are many studies on the production of Sb from an antimony ore in the literature, studies focused on the recovery of Sb remaining in the slag after the pyrometallurgical process by using hydrometallurgical methods are limited. ... Extraction of antimony from its native suphide and oxide containing ores by microwave leaching ...
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A comprehensive review on the ultrasound-enhanced leaching …
Zn Leaching Recovery Reference; Zinc oxide ore: Ultrasound Lixiviant: NH 3 –(NH 4) 2 SO 4: 600 W, 60 min, 30 °C: 83.33%: Zinc oxide ore: ... Zhang et al. optimized the leaching conditions of Pb from antimony and lead-rich oxidizing slag in HCl-NaCl media with the assistance of ultrasound. They found that the leaching percentage of Pb by ...
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A selective process for extracting antimony from refractory gold ore
To avoid the adverse effects of antimony on the cyanide leaching process used for the recovery of gold from refractory gold ore, a cleaner production process was proposed that would selectively remove antimony as sodium pyroantimonate. The process included three steps: 1) leaching of antimony from the refractory gold ore with sodium sulfide solution; 2) pressure …
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PGM extraction from oxidized ores using flotation and leaching
Direct leaching of oxidic PGM ore using different acids yielded relatively low PGM extractions. Leaching in hydrochloric acid achieved extractions of 36.6% Pt and 8.8% Pd, nitric acid achieved extractions of 34.5% Pt and 7.1% Pd. The best leaching results were obtained using aqua regia, with extractions of 48% Pt and 24.5% Pd.
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(PDF) Antimony Production and Commodites
ammonia to produce a pure antimony oxide. ... in extracting antimony from sulfide ore by the addition of iron, a starlike fern ... et. al., 1975, Leaching of Antimony with Ferric Ch loride, Taehan ...
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