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Electrodeposited antimony can be treated with sulfuration–volatilization technology, which causes antimony to volatilize in the form of antimony sulfide. During this process, gold is enriched in the residue, thereby realizing the value-added use of antimony and the recovery of gold. In this study, the thermodynamic conditions of antimony sulfide were …
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 antimony in refractory gold ores was selectively removed by ultrasound with alkaline sodium sulfide. ... Process flow-sheet for gold and antimony recovery from stibnite. Hydrometallurgy, 57 (3) (2000), pp. 187-199. View PDF View article View in Scopus Google Scholar. Xing et al., 2019.
Ubaldini et al.17 developed a new process for the extraction of antimony and gold from refractory auriferous stibnite. They used alkaline sulfide leaching as pretreatment for Sb recovery. Consequently, the gold was recovered by a cyanidation–electrowinning process. Dodangeh et al.18 studied the dissolution kinetics of Sb 2 S 3 in NaOH ...
The successful cyanidation of gold ores containing appreciable amounts of arsenic or antimony sulphide minerals such as orpiment, realgar, and stibnite is usually difficult or even impossible.Extractions are low and the solutions soon become 'foul.' The gold in such ores could be free and uncoated, and no trouble in dissolving it in clean cyanide solutions …
The main antimony phase of antimonial refractory gold ores is stibnite (Sb 2 S 3). ... it is necessary to remove antimony before conducting pretreatment-leaching process to …
Prior to cyanidation, the application of alkaline sulphide pretreatment was seen to enhance Au recovery from 30% to 75% (Ubaldini et al., 2000a), or from 49% to 78% of Au and from 18% to 91% of Ag ...
The pit limit analysis was performed on gold recovery only, to ensure the ultimate pit geometries would not be dependent on silver or antimony value. ... gold refinement, …
The biooxidation of a refractory gold-bearing stibnite (antimony sulphide) favours the increase of gold recovery during the subsequent hydrometallurgical process (cyanidation, adsorption onto activated carbon, desorption from activated carbon and electrowinning). Tests were conducted at laboratory scale utilising a refractory stibnite ore.
Antimony-gold ores mostly consist of gold and antimony sulfide intergrowth and aurostibite (AuSb 2) ... published a review article on "Technological trends, emerging …
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 …
The pit limit analysis was performed on gold recovery only, to ensure the ultimate pit geometries would not be dependent on silver or antimony value. ... gold refinement, tailings detoxification, and process control systems. The two finished products from the Stibnite Gold Project ore processing facility will be gold/silver bars, known as doré ...
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 …
The Stibnite Gold Project, located in the Stibnite-Yellow Pine mining district, is a notable example of a stibnite deposit in the U.S. ... After extraction, the stibnite ore is processed to recover antimony metal or antimony compounds, which find applications in industries such as flame retardants, batteries, and the manufacturing of alloys.
Some stibnite gold ores are more amenable to cyanidation when previously subjected to surface oxidation in the pulverulent condition, with the formation of a sulphate film, which on contact with water yields an insoluble basic sulphate. ... The association of the antimony and gold is very intimate, and during 1946, while the antimony recovery ...
Antimony–gold concentrate is a refractory gold ore, and the direct cyanide leaching efficiency is very low [].For antimony–gold concentrate with high antimony content (Sb > 30%), the volatilization melting of blast furnace and reduction melting of reverberation furnace is generally adopted at present, and the gold is finally enriched in noble antimony for further …
Hydrometallurgy 57 Ž2000. 187–199 Process flow-sheet for gold and antimony recovery from stibnite S. Ubaldini a,), F. Veglio` b, P. Fornari a, C. Abbruzzese a a b Consiglio Nazionale delle Ricerche, Institute of Mineral Processing, Via Bolognola 7, 00138 Rome, Italy UniÕersity of GenoÕa, Department of Chemical and Process …
Abdusalyamova et al. (2013) have shown that it is possible to avoid using metal salts and still recover stibnite from a complex antimony-mercury-gold ore in an efficient …
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}, journal={Hydrometallurgy}, year={2000}, …
The low-grade antimony refractory gold ores in this experiment were produced from Shandong province of China. After grinding to fine size ensuring 98% of the ore particles are less than 74 µm, the chemical composition, phases and microscopic morphology of the ores were characterized by chemical analysis, Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) …
A more recent study (Senchenko et al., 2016) showed that it is possible to selectively recover stibnite and refractory gold (associated to pyrite/arsenopyrite) as separate concentrates from a very ...
This work aims to shed light on the leaching kinetics of antimony from stibnite ore in potassium hydroxide (KOH) solution. Response surface methodology based on central composite design was used ...
Schematic flow-sheet of the overall process: leaching and electrometallurgical treatment for antimony and gold recovery from a refractory Sb 2 S 3. The input stream is …
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 …
US Antimony, which received a $510,500 grant from the US Department of Defense, has the only primary antimony processing facilities in North America and the Stibnite Gold project is poised to be ...
This work aims to shed light on the leaching kinetics of antimony from stibnite ore in potassium hydroxide (KOH) solution. Response surface methodology based on central composite design was used to investigate the effect of time, temperature, solid to liquid ratio (S/L), and KOH concentration as independent parameters on the leaching efficiency of antimony. …
Stibnite can occur as a main deposit or can be found associated with other type of ore deposits. Antimony recovery from stibnite – extractive metallurgical strategies ... Geology, mineralogy and geochemistry of the gold-bearing stibnite and cinnabar deposits in the Emirli and Haliköy areas (Ödemiş, İzmir, West Turkey) Ore Geol. Rev. (2006)
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}, …
Under the optimized conditions,high antimony recovery (97.35%) and low gold dissolution (1.32%) were achieved. ... high arsenic and gold-containing stibnite concentrate ore (As-Au-Sb ore) using ...
The main antimony phase of antimonial refractory gold ores is stibnite (Sb 2 S 3). ... it is necessary to remove antimony before conducting pretreatment-leaching process to improve gold recovery. Antimony can be removed successfully from antimonial refractory gold ores with Na 2 S–NaOH as leaching agents. However, many factors on the recovery ...
