A selective process for extracting antimony from refractory gold ore
The clean production process for extracting antimony from refractory gold ore involves sodium sulfide leaching, pressure oxidation, concentration, and crystallization steps. First, the stibnite in the refractory gold ore reacts with sodium sulfide, and antimony is dissolved into the leaching solution in the form of sodium thioantimonite …
Antimony recovery from complex copper concentrates …
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 …
Process flow-sheet for gold and antimony recovery from …
Recovery 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 …
A selective process for extracting antimony from refractory gold ore
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.
Study on Pre-removal Antimony from Antimony–Gold
For a high calcium low antimony–goldGold concentrate (Ca–Sb–Au ore), this study proposed to pre-remove antimony using slurry electrolysisSlurry electrolysis in HCl–CaCl2 system. The ...
Selective removal of antimony from refractory gold ores by …
A review of the technologies for antimony recovery from refractory ores and metallurgical residues. ... The application of slurry electrolysis for high-arsenic antimony–gold concentrate treatment provides several benefits, ... Improved gold and silver extraction from a refractory antimony ore by pretreatment with alkaline sulphide …
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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 …
Antimony Ore Dressing and Smelting Methods
The solution obtained from leaching with antimony trichloride is subjected to membrane electrolysis or iron replacement to produce metallic antimony or antimony xide. Pyrometallurgical ...
Recovery of Critical Metals from Mine Tailings | SpringerLink
24.2.3.1 Recovery of Critical Elements. As we move toward a more digital, connected, and greener world, we find ourselves having to manage and become aware of new challenges, including procurement. A series of changes between global supply and demand patterns lies beneath today's massive developments.
A Review on Pyrometallurgical Extraction of Antimony from …
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 …
ANTIMONY RECOVERY BY ELECTRO-ELECTRODIALYSIS …
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 ...
Non-toxic technology extracts more gold from ore
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 ...
Antimony Recovery from End-of-Life Products and …
Zhang et al. [54] studied the recovery of antimony and bismuth from pres-sure-leached flue dust created during the smelting of cop-per. They used a three-step process consisting of a kerosene desulfurization step, a chloride leaching step, and a final hydrolysis step to recover 95.80 % of Bi and 90.8 % of Sb.
Study on Pre-removal Antimony from Antimony–Gold
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 …
A Selective Method for Chemical Extraction of Antimony …
Minerals of tetrahedrite group are categorized among the sulfosalt family and are also the most prevalent complex sulfides [].These minerals are easily floated with physicochemical process, which is a useful method to recover valuable metals from ores, and it is widely used in the flotation recovery of copper, lead, zinc, antimony, etc. …
Antimony Ore Beneficiation Methods And Improve Recovery …
(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.
Electrochemical recovery of antimony and bismuth from …
The metals most commonly recovered by electrolysis are gold, silver, copper, manganese, iron, nickel, cobalt, zinc, cadmium, tin and lead. The electro-recovery of metals by the electrolysis of solutions of metal compounds, employing an electrolytic cell in which the metal is deposited upon a cathode, has long been known and is widely …
Electrolytic recovery of antimony from natural stibnite ore
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.
A hydrometallurgical process for the separation and …
This study aimed to introduce a comprehensive process for separating and recovering antimony from a complex stibnite concentrate. Antimony is first leached …
Process flow-sheet for gold and antimony recovery from …
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}, …
A selective process for extracting antimony from refractory …
A complete technological process for extracting antimony from refractory gold ore was proposed. • Antimony can be selectively removed from refractory gold ore by …
(PDF) Electrolytic recovery of antimony from natural stibnite ore
deposition of antimony from the stibnite ore have been investigated. The results of spectrophoto- metric and chemical analyses revealed that the purity of the metal is > 99%.
Leaching Kinetics of Antimony from Refractory Gold Ore in …
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 …
Antimony Recovery from End-of-Life Products and Industrial …
Efficient recovery of antimony from plastics requires adapted screening and sorting methods to identify plastics with high antimony contents. X-ray fluorescence …
Selection on the Process for Removing and Recovering Antimony …
It can be seen from Eq. () that Sb 2 S 3 is deposited on the surface of gold particles, forming a dense product layer and hindering the diffusion of CN − and O 2 to the gold particles, leading to low leaching ratio [3, 4].Effect of Antimony on Pretreatment Process. The melting point of antimony compounds, generated in the roasting process …
Antimony Recovery from Complex Copper Concentrates …
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 ...
Technological trends, emerging applications and metallurgical
Antimony recovery reached 94.4% after direct reduction with coal (Liu et al., 2014). Padilla et al. ... Antimony recovery from stibnite ore by FeCl 3 ... Similar studies were made where the leaching agent in the slurry electrolysis system was hydrochloric acid (HCl) and sodium chloride (NaCl). ...
A selective process for extracting antimony from refractory gold ore
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. ...
Slurry Electrolysis Mechanism of Complicated …
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 ...